This will never be settled! Do you use an all SCSI or all IDE based sytem and why?

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Adul

Elite Member
Oct 9, 1999
32,999
44
91
danny.tangtam.com
Why o Why did I click on this super long thread. *smacks NFS4 with trout*

It seems to me that you guys are going in circles here. You are talking until your blue in the face trying to get the other sides to see your point of view. I was going to try and read this novel of a thread, but it is a bit long. Though both sides do bring up some good points and arguements. And it shows that both sides are passionate in what they beleive is right. Each to their own I say.

Hardware, SCSI is not dead, there are still applications that can use its performance. Every seen a enterprise storage solution. I'll take the one our company has for example, it is a 1.8 TB disk farm of SCSI drives. This single disk farm handles the shared file storage for 4 novell servers, and various Unix boxes. The unix side expecially is interesting since they deal files sizes no smaller then 100MB. Those catia models can get quite large. Or how about when someone does an ansys analysis that takes a month to run (even though this guy has 4 GB of ram and a raided SCSI disk), with extreme disk swapping has a result. No way in hell would a IDE system be able to handle that stress.

Though has much has I would love a ALL SCSI system, unless I was into heavy video editing and what not, it would be more then I would need. Now if a situation does come up for when I do every bit of extra performance, then I would not hesitate one second to go all SCSI in raid.

Anyways, that is my two cents.
 

AMDfreak

Senior member
Aug 12, 2000
909
0
71
Adul--I'm wondering why I clicked on this long thread too. *smacks NSF4 with a tuna* :p

I use both-IDE for hard drives and CD-ROM's on SCSI. With the IDE RAID taking a few extra CPU cycles, having the CD stuff on SCSI kind of blances out the CPU utilization, especially when doing installs or playing games that load from the CD. Works out well being able to connect all these devices since my setup in all IDE would be a nightmare. I have 4 hard drives, 1 on each channel of my KT7-RAID, the 2 on the HPT370 are in RAID-0 of couse. On the SCSI card, I have a Plextor 40x, Plextor 12/10/32S, and a Toshiba 5x DVD-ROM.
 

Radboy

Golden Member
Oct 11, 1999
1,812
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400+ posts. Dang .. what's the world record?

I'd just like to chime in once more before we digress to tangential subjects.

SCSI drives & the SCSI interface offers performance advantages over the IDE drives & the IDE interface. No one argues that. The argument is over whether SCSI's cost premium is worth it (the value question).

That's where the debate lies. Some say it's worth it; others say not. While Modus claims to be able to divine value for everyone (no matter what they do with their PC), I take the approach that it depends what you do with your PC, and that each user is the only person who can answer the value question (for themselves).

Modus claims the perf increase he experienced upgrading to SCSI was 'slight' .. whereas I found it dramatic .. with a 'wow factor' rivaling that of an upgrade from dial-up to cable modem. Why might we have come to such different conclusions? Could it be cuz we do different things with our PCs?

My recent CPU upgrade - from C300a @464, to P3-700 @ 938 .. a MHz increase of over 100% .. left me relatively disappointed, and paled in comparison to the upgrade to LVD SCSI.

I upgraded to SCSI over 2 yrs ago, & I continue to use a SCSI boot drive (with IDE drives providing a cheap mass storage solution). Actions speak louder than words, and I wouldn't continue using SCSI drives if I didn't feel they provided me with performance equal to or greater than what I paid for them. Admittedly, not everyone uses their PC in the same way I use mine.

Note that I don't even own the fastest SCSI drive on the planet - the X15. My drives are a few generations old (IBM 9LZX & 18LZX), and they still impress me.

If someone can't afford a SCSI drive & adapter, the point is moot. It's obviously not worth it for that person. But what about the person who *can* afford the $290 it cost to upgrade their sysytem to enterprise-class perf? (You can buy gfx cards that cost more than that.) That's the real question. Will the person who can afford a SCSI drive & adapter get their money's worth from the upgrade? I say it depends on what you do with your PC.

2 years from now, the seek/access time of your SCSI drive will still be better than anything offered in IDE flavor .. cuz manufacturers of IDE drives are not interested in seek/access times. It costs a lot of money to improve the seek time of a drive. If it was cheap, IDE manufacturers would be making progress in that area. They're much more interested in increasing *density* (which has a by-product of STR), cuz increased density means more space per platter .. which translates into reduced costs .. which is what IDE is all about -> cheap space (not performance).

It doesn't matter how high an STR spec a drive has .. if it's spending all it's time seeking small files (like when running an OS & apps) .. which is why the Storagereview says HERE that:

<copy/paste> STR had relatively little effect upon overall drive performance. Today, it should be clear that steadily-increasing transfer rates have in effect &quot;written themselves out&quot; of the performance equation ... it should be clear that random access time is vastly more important than sequential transfer rate when it comes to typical disk performance. Thus, the reordered &quot;hierarchy&quot; of important quantifiable specs would read:

1. Seek Time
2. Spindle Speed
3. Buffer Size
4. Data Density </paste>

Compare the seek/access times of drives from 2 years ago, and you'll find that IDE drives have made little-to-no progress .. while SCSI drives continue to shave millisecs.

For example, IBM just announced their first 15Krpm drive (36Z15) with a spec'ed seek of 3.4ms (ave latency 2.0ms) for a calc'ed access of 5.4ms. Compare that to the fastest IDE drives .. like the IBM 75GXP, with a manufacturers seek spec of 8.5ms &amp; ave latency of 4.2ms .. for a calc'ed access of 12.7ms (benches show this number around 12.2ms) .. and while the 36Z15 drive might not bench at 5.4ms access, it'll certainly get to the data much faster than the IDE drive .. 12.2 vs 5.4 .. 12.2 is 125% slower than 5.4.

Rumor has it that Seagate has a drive in the pipe that will improve even further on the 3.4ms seek number of IBM's offering (due out next month).

The low seek/access time is what makes SCSI drives so adept at running an OS, apps &amp; swap/page file. Note also that you don't need very much space to run your OS, apps &amp; swap/page file. 9-gigs is more than enuf room to run W2K, WinME, all your apps, and even a distro of Linux.

Lemme conclude by saying SCSI users have nothing against IDE drives or the IDE interface. We love IDE drives .. for their killer storage value (Last month I bought a 45-gig 75GXP for ~$150) .. which allows us to employ the best of both worlds .. a little SCSI (for OS, apps, swap/page) &amp; a lotta IDE (for mass storage).

Not everyone does those things with their PC that take advantage of the SCSI interface &amp; SCSI drives .. therefore <disclaimer> SCSI is not for everyone </disclaimer>.
 

Sir Fredrick

Guest
Oct 14, 1999
4,375
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0
That'll happen when Modus admits that it's not a mistake for some users to go all SCSI...or when he gives up arguing. Until then I'll shoot down every point he makes. ;)

Oh well, we've got to be breaking records here, right?
 

Santan

Senior member
Oct 23, 1999
572
0
0
OK - tough guy...

What's a better &quot;value&quot;?

In these situations...And well se if your RIGHT?

1. Physicians Group Practice - 5 Docs...IDE or SCSI computer system?

2. Physician's Son - Wants the FASTEST gaming system available - IDE or SCSI?

3. Dental Group - 2 Docs - IDE or SCSI?

4. Small Marketing and Sales Group - IDE or SCSI?

5. Entrepreneur - Start up company selling rustic, country items?

Lord MODUS - WHAT WOULD YOU RECOMMEND For THESE PEOPLE THAT TRUST YOUR JUDGEMENT???

You want a HINT BIG FELLA...I know its tough...(cough...SCSI...cough)
...
...
...
...
...
...
Whats the BEST &quot;Value&quot; For these individuals....?

1. Down time for each of the doctors/dentists/entrpreneur - businesses is loss of dollars - last I checked there is no hot-plugable IDE...SCSI is the only way to fly...

Remember when money is on the line - and if you stand to lose productivity of employees - there is only one SOLUTION...LIKE IT OR NOT...SCSI is King HERE!!!

2. SPEED IS SCSI - no matter how you cut it...If a doc says - I WANT THE FASTEST SYSTEM for MY SON...you get him the X15 or 10K III and be done with it...

&quot;Value&quot; is a relative term...Value for me - is clearly not value to you...Yes I would rather have the extra speed and pay for it...

You would rather have cheap...inexpensive...slower IDE...

SUCK IT UP - YOUR BEATEN!!!


 

Modus

Platinum Member
Oct 9, 1999
2,235
0
0
AMDfreak,

<< I use both-IDE for hard drives and CD-ROM's on SCSI. >>

This is actually a nice use of SCSI from a value perspective. The cost of a sans BIOS controller card is as low as $18 and SCSI optical drives are often only slightly more expensive than their IDE counterparts. The added performance and reliability under heavy multitasking can justfiy the small added expense in some situations. It's also a cheap way to free up more room on the IDE controller for devices that SCSI can't touch in price/performance: ATA hard drives.

Radboy,

<< While Modus claims to be able to divine value for everyone (no matter what they do with their PC), I take the approach that it depends what you do with your PC >>

Does anyone really need SCSI? You name an application that absolutely requires SCSI and I'll leave it alone. There are actually a handful of such applications, but none of them really apply to personal computers. Therefore, anyone who doesn't need SCSI must evaluate it from a practical, price/performance perspective. That doesn't mean they'll ignore SCSI. It just means they'll weigh its price in direct proportion to its performance, and compare that to other possibile solutions. We've already seen how such a comparison is tilted heavily in favour of IDE.

If a person doesn't want to follow such a method, they're deliberately looking for top performance, in which case they couldn't care less about value, and this whole discussion is moot to them. The idea behind optimal value purchasing doesn't change from person to person; these people simply ignore it.

All I'm saying is that a person who bought a full SCSI setup is either not concerned with practical price/performance, or they made a mistake. Surely you can agree with this. I don't know why it's so hard to swallow. You SCSI fanatics, to a person, readily admit that the main attraction of the technology in your eyes was not its practicality or its logical value, but its performance, and specifically, how you felt when you experienced that performance. Yet you still quibble when I claim you weren't making a rational price/performance evaluation?

The longer this goes on, the closer our positions seem. We are truly arguing over minutiae.

Fredrick,

<< If you enjoy great performance from your computer, then it's perfectly sensible to purchase something which will deliver top of the line performance. >>

You may enjoy it, but it only becomes sensible when that product demonstrates a clear practical advantage by virtue of a strong price/performance ratio. Until then, you're simply filling a desire. Not that there's anything wrong with that -- it's just not optimal purchasing.

<< Who is this &quot;we&quot; anyway? >>

The vast majority of sensible consumers who find it frivolous to pay an extra 300% for an extra 46% of unnecessary performance.

<< Note that this is a recursive definition. Also note that you are using only the 4th definition given >>

The other definitions of value basically fall into two categories: monetary or practical worth, and morals. Neither of those apply to our discussion, so it's obvious I wasn't using value in that sense. And the dictionary's definition of value is not recursive. It's simply building on an alternate definition. The meaning is quite clear: Equivalent return for value received. If you have trouble with that, Fredrick, then by all means take it up with the Editorial Advisory Committee of the American College Dictionary, Randome House, New York. Fair enough?

<< Your equation is just that, your equation. It's meaningless >>

On the contrary, it is the key to sensible spending toward a practical purporse. It's certainly more meaningful that yours (Value = Enjoyment, Period.)

<< I see nothing demented or wrong with purchasing the best you can afford >>

Then we should stop this right now because it's clear you don't have the first clue how a person manages their funds most efficiently.

<< >>>>> . . . The value purchaser will stop there and buy the product right at the foot of this curve, saving the money for something else with a higher rate of return.<<<<< What if there's nothing left?

Don't be an idiot. There's always something useful left to do you with your money.

<< we have simply stated that SCSI was worth it for us >>

Only because you were dead set on top PC performance at any cost. That's not sensible or practical: that's a hobby. The problem is, you present it as a triumph.

<< I still mantain that STRs have written themselves out of the equation, only because STRs on all current drives are very good and quite comparable. >>

But that's the point! The very fact that STRs -- which still have an impact on real world performance -- are roughly equal on modern SCSI and IDE drives, is another tick in favor of IDE. You're trying to argue the opposite: that because SCSI and IDE perform similarly in a certain test, then that test ought to be ignored. Malarkey!

<< I guess you haven't checked the latest HDtach &quot;poll&quot; on anandtech. I quickly went through it. . . Didn't see a single IDE drive with .6% cpu utilization. >>

You know full well where I got that number. It's straight from any StorageReview drive article. If you want to call them liars, that's fine with me. But here's a recent SR &quot;Elsewhere&quot; quote just to bury your claim that CPU usage is still an issue:

&quot;. . . the claim that &quot;IDE is using [sic] the system processor for most actions&quot; is plainly false. These beliefs are merely holdovers from the old days where ATA's DMA capabilities weren't as well developed as that of SCSI.&quot;

So don't bring up CPU usage again. It just makes you look foolish.

<< Then you'd have to arbitrarily determine how much disk swapping should be going on, and how much that should be weighted against the rest of the benchmark....you're making it synthetic and not real world. >>

Not arbitrarily at all. We simply write the benchmark to load a set amount of programs and perform a set amount of tasks in those programs. CSA's OfficeBench is already capable of this. Then we record what activities in typical modern computing result in disk swapping and stress those -- like Quake's DEMO1.DEM.

Regardless, all of my ideas on measuring performance are better than yours. But have it your way. Just eyeball every piece of hardware you evaluate, use the warm fuzzy test to measure the effect a bunch of metal and plastic has on your heart, and then buy whatever makes you happiest. A playful burst of insanity that would bring joy to any asylum.

<< I read your post, but I don't see why you'd get to choose the numbers >>

I was just throwing something out for us to kick around.

<< and it also seems foolish to only include two benchmarks >>

Four, genius: Two synthetic, one real-world, and one hybrid.

<< The fact that it shows two extremely different drives performing equally shows how ludicrous it is to consider it a valid benchmark. >>

The whole point of my holistic benchmark is to smooth out these aberations in otherwise useful tests.

<< Unlike you Modus, I'm not trying to impose a law or a general rule. >>

Actually, you are. Your rule is: Anything is a good value as long as you think it's a good value; anything is sensible and practical so long as you believe so. Pardon me while I vomit.

<< Most upgrades for a home computer could be better spent on other things, such as food >>

Actually, the average Western family consumes far too much food.

<< or simply invested in the bank. >>

Agreed.

<< Hell the most efficient use of the average person's money would never allow them to purchase a computer >>

Not in today's society. Computer literacy is becoming the defining line between the &quot;have&quot; and &quot;have not&quot; careers. A modern computer is an essential household tool for a large bulk of the workforce.

<< I have a friend interning at a company similar to pixar, these so called professionals make very very good money, rendering jobs distributed over their network of powerful workstations take hours. . . obviously performance and reliability means a lot. Do they use SCSI? Hell yeah. Is it foolish for them to do so? Highly unlikely. >>

The bottleneck in unattended 3D rendering is the CPU or video card, not the hard drive. Reliability can be ensured by a cheap IDE RAID server with automatic redundant backups and frequent off site storage. SCSI is not necessary here, nor would it provide a significant productivity boost. The company is obviously able to afford the technology and thinks little of the extra two or three hundred dollars per computer. That doesn't make them foolish, but it's certainly not the optimal use of their funds.

<< Heh, we've been messing around with an embedded system here, the motherboard doesn't have an IDE controller...so I guess IDE ain't free anymore. >>

Embedded systems? Yeah, that really applies to this discussion. Let's bring up Palm Pilots and BlueTooth transmitters while we're at it!

<< If you are all SCSI with one IDE drive, you can enable one IDE channel, bringing SCSI/IDE systems to 2 IRQs. >>

Which is the same amount in a conventional IDE system, disproving your notion of saving an IRQ. And if you claim you have no IDE devices, then your price/performance ratio is even more absurd because you now have to pay SCSI's cost/megabyte ratio for mass storage. Unless of course you claim you don't require much storage, but that's quite a bit of backtracking, even for you.

<< I guess you've never heard of removable hard drive enclosures. Too bad. They're fast and easy >>

Unless you need to read the data on another computer, say, becuase your current one was damaged (which is, oddly enough, a major reason for backups). By far the best backup tool today is a recordable CD drive, whose media can be read by any computer made in the past five years.

This backup argument is now several levels deep. Obviously you've lost every round, but it's also important to recall the original problem: your asinine claim that SCSI technology saves time backing up, either due to time saved by not backing up so often (which was explained to you as dangerous regardless of IDE or SCSI) or due to time saved during a SCSI backup procedure (which simply doesn't happen due to the limitations of removable media, and which, furthermore, is irrelevant because backing up is preferably done during system downtime).

<< Tell me Modus, how do you write software to access data on the HD without stressing it? >>

Oh brother. First year computer science! You only use the slower system components when necessary. i.e. use a memory array instead of a temporary disk file. This is how all modern software is written: to use the hard drive as little as possible.

<< RE: &quot;You don't have the authority to say that.&quot; It doesn't take authority, just intelligence. >>

Like I said, you haven't the authority ;)

<< &quot;this thread needs to die soon.&quot; That'll happen when Modus admits that it's not a mistake for some users to go all SCSI >>

Well then we're done, because I admitted that some time last week. Going SCSI is obviously not a mistake if you set out to ignore price/performance and buy the best thing you can possibly afford. It just isn't practical purchasing and it doesn't make optimal use of your money.

<< Until then I'll shoot down every point he makes. >>

Considering your record thus far, I'd say we'll be here quite a while ;)

Santan,

<< OK - tough guy >>

LOL :D What makes me tough? The fact that I speak in coherent sentences? That appear to be capable of maintaining reasonable motor control? From your perspective, I suppose, but you've got low standards, my friend.

<< What's a better &quot;value&quot;? In these situations >>

In your pet examples, only the second -- the doctor's spoiled son -- seriously warrants SCSI, and only because value itself contradicts the demands of the client. In all the others, IDE is by far the optimal use of their funds. And if absolutely data integrity is required, IDE RAID is there for a puny, fractional price increase.

<< SUCK IT UP - YOUR BEATEN!!! >>

First my nuts, and then my beaten. You certainly have a way with words.

Modus
 

Sir Fredrick

Guest
Oct 14, 1999
4,375
0
0
>>>>>
<< While Modus claims to be able to divine value for everyone (no matter what they do with their PC), I take the approach that it depends what you do with your PC >>

Does anyone really need SCSI?
<<<<<

Does anyone really need a drive faster than 5400RPM? Does anyone really need a modern PC when a cheap P133 will allow them to run office software, while a gaming console will allow them to play games?

>>>>>
All I'm saying is that a person who bought a full SCSI setup is either not concerned with practical price/performance, or they made a mistake. Surely you can agree with this.
<<<<<

I agree that people who went SCSI were not concerned with YOUR price/performance model. But I do not believe that this is the ultimate mode. I think it's fine if you want to use it, but don't try to convince us to use it too.

>>>>>
You SCSI fanatics, to a person, readily admit that the main attraction of the technology in your eyes was not its practicality or its logical value, but its performance, and specifically, how you felt when you experienced that performance. Yet you still quibble when I claim you weren't making a rational price/performance evaluation?
<<<<<

I had not used a SCSI sytem before I set up mine, so this gushy feeling you keep bringing up could not have been an influencing factor.

>>>>>
<< Who is this &quot;we&quot; anyway? >>

The vast majority of sensible consumers who find it frivolous to pay an extra 300% for an extra 46% of unnecessary performance.
<<<<<

I thought you had no idea how many people follow your price/performance mode. ;)

>>>>>
<< Note that this is a recursive definition. Also note that you are using only the 4th definition given >>

The other definitions of value basically fall into two categories: monetary or practical worth, and morals. Neither of those apply to our discussion, so it's obvious I wasn't using value in that sense. And the dictionary's definition of value is not recursive. It's simply building on an alternate definition. The meaning is quite clear: Equivalent return for value received. If you have trouble with that, Fredrick, then by all means take it up with the Editorial Advisory Committee of the American College Dictionary, Randome House, New York. Fair enough?
<<<<<

If that definition refers to the other definitions, shouldn't they all be supplied? That was my original point. But ok, fine, let's say this definition supports your ideas about value. Another definition has already been supplied in this thread which supports OUR ideas about value.

>>>>>
On the contrary, it is the key to sensible spending toward a practical purporse. It's certainly more meaningful that yours (Value = Enjoyment, Period.)
<<<<<

I have not supplied any equations. :)

>>>>>
<< I see nothing demented or wrong with purchasing the best you can afford >>

Then we should stop this right now because it's clear you don't have the first clue how a person manages their funds most efficiently.
<<<<<

what good is it to forever manage your funds &quot;most efficiently&quot; by your definition of efficiency which dictates that you never purchase more than you need, or anything without a linear price/performance comparison, if you can never spend your well managed funds on anything better?

>>>>>
<< >>>>> . . . The value purchaser will stop there and buy the product right at the foot of this curve, saving the money for something else with a higher rate of return.<<<<< What if there's nothing left?

Don't be an idiot. There's always something useful left to do you with your money.
<<<<<

Of course. But say you want to upgrade your computer. You already have every component at the top of its price/performance curve, and you're still not satisfied with your performance, do you just fail to upgrade and hope the good stuff gets cheaper eventually?

>>>>
<< we have simply stated that SCSI was worth it for us >>

Only because you were dead set on top PC performance at any cost. That's not sensible or practical: that's a hobby. The problem is, you present it as a triumph.
<<<<<

Not at any cost, just top PC performance within our computing budget. :)

>>>>>
<< I guess you haven't checked the latest HDtach &quot;poll&quot; on anandtech. I quickly went through it. . . Didn't see a single IDE drive with .6% cpu utilization. >>

You know full well where I got that number. It's straight from any StorageReview drive article. If you want to call them liars, that's fine with me. But here's a recent SR &quot;Elsewhere&quot; quote just to bury your claim that CPU usage is still an issue:

&quot;. . . the claim that &quot;IDE is using [sic] the system processor for most actions&quot; is plainly false. These beliefs are merely holdovers from the old days where ATA's DMA capabilities weren't as well developed as that of SCSI.&quot;

So don't bring up CPU usage again. It just makes you look foolish.
<<<<<

lol ok, let's ignore the numbers that anandtech users got, they must just be incapable of properly configuring their systems. Storagereview may just be better at it, so let's assume that all users will be able to configure their systems similarly, even though this is clearly not the case, as indicated by the HDtach numbers.

>>>>>
<< Then you'd have to arbitrarily determine how much disk swapping should be going on, and how much that should be weighted against the rest of the benchmark....you're making it synthetic and not real world. >>

Not arbitrarily at all. We simply write the benchmark to load a set amount of programs and perform a set amount of tasks in those programs. CSA's OfficeBench is already capable of this. Then we record what activities in typical modern computing result in disk swapping and stress those -- like Quake's DEMO1.DEM.
<<<<<

Which programs? Which tasks? Some of these are more disk intensive than others I'm sure, and in different areas as well. They should all be weighted by how liely a given user is to perform those tasks...which is of course impossible to determine for each user because everyone does tifferent things with their computers,and so these decisions become arbitrary. Want to use Quake's DEMO1.DEM? That's ok, but it won't tell you anything about how I benefit from SCSI since I don't play quake.

>>>>>
Regardless, all of my ideas on measuring performance are better than yours. But have it your way. Just eyeball every piece of hardware you evaluate, use the warm fuzzy test to measure the effect a bunch of metal and plastic has on your heart, and then buy whatever makes you happiest. A playful burst of insanity that would bring joy to any asylum.
<<<<<

I have never said that the purchase should be based on emotional feelings, though you love to continually point to that. I have already sstated several times now that purchasing decisions should be based on the best performing device in your price range.

>>>>>
<< The fact that it shows two extremely different drives performing equally shows how ludicrous it is to consider it a valid benchmark. >>

The whole point of my holistic benchmark is to smooth out these aberations in otherwise useful tests.
<<<<<

Our contention is that the test is no longer useful.

>>>>
<< Unlike you Modus, I'm not trying to impose a law or a general rule. >>

Actually, you are. Your rule is: Anything is a good value as long as you think it's a good value; anything is sensible and practical so long as you believe so. Pardon me while I vomit.
<<<<<

Again I say, I am not trying to *impose* a rule. My value rule applies to me, I don't go around telling people they made a foolish decision because they didn't use my model of value. You, OTOH, seem to enjoy telling people that they made foolish purchasing decisions, whnever they choose not to follow your price/performance model.

>>>>>
<< Most upgrades for a home computer could be better spent on other things, such as food >>

Actually, the average Western family consumes far too much food.

<< or simply invested in the bank. >>

Agreed.
<<<<<

So instead of upgrading our computers, as long as they work, all the money that would be spent on computers should go in the bank then right?

>>>>
Not in today's society. Computer literacy is becoming the defining line between the &quot;have&quot; and &quot;have not&quot; careers. A modern computer is an essential household tool for a large bulk of the workforce.
<<<<<

Useful, yes. Essential, unlikely. Basic computing skills can be learned in a classroom and practiced on lab computers. Once you have these basic skills, you may use them in your job which requires them, and do not need a home computer to keep them up. If you want a tech job, then of course a computer would be essential, but a techie is not your average person. ;)

>>>>>
<< I have a friend interning at a company similar to pixar, these so called professionals make very very good money, rendering jobs distributed over their network of powerful workstations take hours. . . obviously performance and reliability means a lot. Do they use SCSI? Hell yeah. Is it foolish for them to do so? Highly unlikely. >>

The bottleneck in unattended 3D rendering is the CPU or video card, not the hard drive. Reliability can be ensured by a cheap IDE RAID server with automatic redundant backups and frequent off site storage. SCSI is not necessary here, nor would it provide a significant productivity boost. The company is obviously able to afford the technology and thinks little of the extra two or three hundred dollars per computer. That doesn't make them foolish, but it's certainly not the optimal use of their funds.
<<<<<

CPU and RAM are a large bottleneck, but once you've got the best there, what's left to upgrade but the disk subsystem? And the disk subsystem is still largely used, just not as much as the CPU or RAM (of course). IDE RAID has extremely high CPU utilization because almost all IDE RAID solutions are software based, they are not hot swappable, so there is more potential downtime.
Considering that every minute wasted costs them quite a bit of money, the extra money was most certainly an optimal use of their funds.

>>>>>
<< Heh, we've been messing around with an embedded system here, the motherboard doesn't have an IDE controller...so I guess IDE ain't free anymore. >>

Embedded systems? Yeah, that really applies to this discussion. Let's bring up Palm Pilots and BlueTooth transmitters while we're at it!
<<<<<

This is an embedded computing system, on an x86 processor (AMD), with SDRAM. It's a small computer, basically. It's using a motherboard, which happens not to have IDE, which means that it's possible to get a motherboard without IDE controllers on it, so youd IDE controller isn't free. I contest your use of the word &quot;Free&quot; anyway, if you purchase a product and it comes bundled with something else, that extra &quot;something else&quot; was not free, it was most certainly included in the cost of your product. For example, snap-on tools offers &quot;free&quot; t-shirts, hats and other such things when you spend a certain amount of money on their tools. They cost twice as much as craftsman tools. You're paying for that &quot;free&quot; stuff, and the brand name.

>>>>>
<< If you are all SCSI with one IDE drive, you can enable one IDE channel, bringing SCSI/IDE systems to 2 IRQs. >>

Which is the same amount in a conventional IDE system, disproving your notion of saving an IRQ. And if you claim you have no IDE devices, then your price/performance ratio is even more absurd because you now have to pay SCSI's cost/megabyte ratio for mass storage. Unless of course you claim you don't require much storage, but that's quite a bit of backtracking, even for you.
<<<<<

Except you now have optimal performance from every device, because you are not limited by the fact that two IDE devices on the same channel cannot communicate simutaneously. If you wish to get optimal performance from an all IDE system, you want every device on a seperate channel, requiring 3 or 4 IRQs, depending on your addon controller.
And no, I do not have mass storage requirements, everything fits quite comfortably on my 18GB drive, and I see no reason why anyone would need a 40GB drive, but if you need that storage then so be it :)

>>>>>
<< I guess you've never heard of removable hard drive enclosures. Too bad. They're fast and easy >>

Unless you need to read the data on another computer, say, becuase your current one was damaged (which is, oddly enough, a major reason for backups). By far the best backup tool today is a recordable CD drive, whose media can be read by any computer made in the past five years.
<<<<<<

CD-Rs are great for backups except that they are extremely slow. If you have access to another SCSI rig, then you just move your removable drive to that one to get data off of it. Or you move your SCSI card to another computer. If your computer was physically damaged, then you must buy and configure another one anyway...it should be a given that you'd go with SCSI again, and thus as soon as you had a computer to use the data on, you'd have access to such data. In fact, a removable hard drive is great if you've got a computer at home and a computer at work, then you can very easily transport data between them, and if your work computer stops working, you can access everything from your home computer. But now we're getting into an argument over backup mediums, not SCSI vs. IDE.

>>>>This backup argument is now several levels deep. Obviously you've lost every round, <<<<<

lol

>>>>
but it's also important to recall the original problem: your asinine claim that SCSI technology saves time backing up, either due to time saved by not backing up so often (which was explained to you as dangerous regardless of IDE or SCSI) or due to time saved during a SCSI backup procedure (which simply doesn't happen due to the limitations of removable media, and which, furthermore, is irrelevant because backing up is preferably done during system downtime).
<<<<

Backing up from one SCSI HD to another removable SCSI drive is extremely fast, and it bypasses the limitations of removable media. Backing up cannot be performed during system downtime if there is no system downtime.

>>>>>
<< Tell me Modus, how do you write software to access data on the HD without stressing it? >>

Oh brother. First year computer science! You only use the slower system components when necessary. i.e. use a memory array instead of a temporary disk file. This is how all modern software is written: to use the hard drive as little as possible.
<<<<<

lol ok yes, of course the hard drive is not used for a workspace, this is hardly a feature of &quot;modern&quot; software, although I suppose it really depends on what you mean by modern. I assumed you meant within the last few years, not as in dating back to Win3.1. So yes, a program uses RAM for holding temporary data, until there is no more RAM in which case the swapfile kicks in and &quot;stresses the hard drive&quot;. Still, starting a program requires meany non sequential reads, and then any program which uses a database is going to frequently hit the hard drive so that no information is lost, and because the database could not possibly fit into system memory.


>>>>
<< Until then I'll shoot down every point he makes. >>

Considering your record thus far, I'd say we'll be here quite a while
<<<<<

Has anyone ever told you that you are pompus and arrogant? Oh, they have? Many times you say? I thought so :) I think my record thus far is just fine, thanks.

 

Viperoni

Lifer
Jan 4, 2000
11,084
1
71
LOL I can't believe we're on the 5th page already.

How about I make it really simple for you guys?

IDE = value to mid/high end.
SCSI = midrange to top of the line.


 

Sir Fredrick

Guest
Oct 14, 1999
4,375
0
0
lol thanks hanpan, I don't really care about the ratings too much, I just think it was highly immature of that person (whoever it may have been) to give me a rating of 0. I'll live ;)
 

AdamK47

Lifer
Oct 9, 1999
15,682
3,531
136
I think the title of this thread should read &quot;This will never be settled! Do you use an all SCSI or all IDE based sytem and why?&quot;
 

AdamK47

Lifer
Oct 9, 1999
15,682
3,531
136
Ugh! The last thing this thread needs is a bump up.

Thanks for the thread name change. :)
 

Moz

Senior member
Jan 16, 2000
421
0
0
Let the war continue (with no end in sight :))

IDE for me, simply because the $$ for a SCSI setup isn't worth it (for me) at the moment.
 

Modus

Platinum Member
Oct 9, 1999
2,235
0
0
Fredrick,

<< Does anyone really need a drive faster than 5400RPM? >>

Nope. But 7200 rpm drives typically offer an equal or better price/performance ratio at typical capacities. These days, 5400rpm drives have a relatively low value, except at massive capacities such as 80G.

<< Does anyone really need a modern PC when a cheap P133 will allow them to run office software >>

Office 2000 is not a pussy cat. Try running it day in and day out on a P133-era machine, and you'll see why most people opt for more recent technology. In fact, older technology tends to have low practical value when running modern software because, although it is adequate, sellers often overcharge on used items due to the buyer's assumption that he is getting a deal. For instance, a used P/233 MMX machine might cost $200, while a brand new D/800 system with warranty costs $520. The P/233 is certainly adequate for some applications, but the D/800 system has a much better price/performance ratio, making it the more sensible purchase assuming it is within budget.

<< while a gaming console will allow them to play games? >>

Gaming consoles typically can't deliver proper ports of the most ground breaking PC games until much later in their life. And part of PC gaming is the Internet multiplayer aspect, which no console has been able to match with such freedom. Besides, one look at the price of such consoles will confirm that they don't represent a spectacular value. A gaming PC twice as powerful as a PS2 or DreamCast and much more flexible will typically cost about twice as much. This is at least equal in the price/performance department, and considering the PC can do a myriad of non-gaming things the console couldn't even dream of, the PC is by far the better value.

<< I agree that people who went SCSI were not concerned with YOUR price/performance model. >>

LOL, &quot;my model&quot;. The very phrase price/performance defines itself completely: price over performance. That's it. Claiming you followed some other model of price/performance that lead you to SCSI is equivalent to saying you followed an alternate form of addition that lead to you 2+2=5. Now, you could call that &quot;addition&quot; in your own little world, but when you tried to communicate the concept to some one else they would be a little confused.

Likewise, you can claim SCSI has a better price/performance ratio, but any normal person understands price/performance to mean just that -- price over performance. Even Radboy and other SCSI fanatics admit that SCSI has a relatively low price/performance ratio. Please, you're grasping at straws here. It's really embarrasing to see you try to argue that SCSI has a better price/performance ratio than IDE. Just give it up.

<< I had not used a SCSI sytem before I set up mine, so this gushy feeling you keep bringing up could not have been an influencing factor. >>

Are you sure you want to go this route? Because all it leads to is you claiming that your SCSI decision was entirely rational, and the obvious observation that, if so, it was a purchasing mistake. It's actually better for you to, like Radboy and Santan (&quot;I LOVE MY SCSI SETUP!!! I LOVE IT SO MUCH!!!&quot;), admit the true reason for your purchase -- geekish enthusiasm for a high performance technology. This at least I cannot criticize you for, and it's much more honest to those trying to make an informed decision.

<< I thought you had no idea how many people follow your price/performance mode. >>

No exact figures. But care to wager if the majority of PC's sold in the universe use higher value IDE technology? Didn't think so.

<< If that definition refers to the other definitions, shouldn't they all be supplied? That was my original point. >>

The other definitions of value are obvious to anyone and need not be repeated. In fact, so is the one I've been using to mean price/performance and practical purchasing. You only quibble over it because you're backed into a corner with nothing else to argue.

<< But ok, fine, let's say this definition supports your ideas about value. Another definition has already been supplied in this thread which supports OUR ideas about value. >>

No, it hasn't. The other definition of value was completely irrelevant. It meant monteary or estimated worth, which doesn't help us at all because it provides nothing to judge against that worth.

It's pretty funny actually. It's like you're trying to argue that I'm using the wrong word when I say &quot;Richard Simmons looks gay&quot; because gay can also mean happy. Sure it means happy, and he does seem happy, but only a fool would assume that was my meaning.

<< I have not supplied any equations. >>

Sure you have. Your twisted logic leads to the ultimate conclusion that value is completely subjective and depends on one thing and one thing alone: whatever the purchaser desires. Value = Enjoyment Derived, Period. This bizzare definition is basically tacit approval for people to spend their funds however they like, without the slightest bit of rational suggestion. Now, this makes sense from a selfish, individualist point of view, but anyone concerned with helping his fellows make optimal decisions will use the standard, objective definition of value and price/performance that everyone already understands.

<< your definition of efficiency. . . dictates that you never purchase more than you need >>

Not true. Efficient purchasing dictates that you first establish your minimum requirements in a product, and then compare the value, the price/performance ratios, of all products that meet these requirements. As I demonstrated above in the case of 5400prm vs. 7200rpm and a used P/233 vs. a new D/800, efficiency demands a more expensive product just as often as it demands a cheaper one.

<< you can never spend your well managed funds on anything better >>

That's absurd. Our material world presents a myriad of possibilites to the person bent on spending their money. There's no limit to the amount of high value goods you can purchase. The money saved from not getting a Ferrari could buy three Hyundai's for your family or friends. The possibilities are limitless.

<< But say you want to upgrade your computer. You already have every component at the top of its price/performance curve, and you're still not satisfied with your performance, do you just fail to upgrade and hope the good stuff gets cheaper eventually? >>

Yes. And it will get cheaper, quite quickly. In the meantime, save your money, or spend it on something that might actually give you a positive return like an investment or a business. Patience, Fredrick-san ;)

<< lol ok, let's ignore the numbers that anandtech users got, they must just be incapable of properly configuring their systems. >>

That's pretty dense. Obviously you can't compare CPU usage across a bunch of different systems based on end users haphazardly running benchmarks with no controlled methodology. StorageReview is the authority you point to for proof of SCSI's higher performance. You can't now decline to accept their tests which show CPU utilization of IDE devices right in line with their SCSI counterparts. Again, drop the CPU usage issue. You're getting nowhere.

<< Which programs? Which tasks? >>

Just a representative sample of programs similar to those found in CC Winstone 2001 or Sysmark 2000: the MS Office apps, a web browser, a graphics editting program, etc. Sure, not everyone uses those exact programs, but they're a fairly good estimate of productivity demands.

<< They should all be weighted by how liely a given user is to perform those tasks >>

No problem. OfficeBench is like that. You can control the simulatenous threads and select which to run.

<< Want to use Quake's DEMO1.DEM? That's ok, but it won't tell you anything about how I benefit from SCSI since I don't play quake. >>

I meant along the lines of DEMO1, the same idea of a snapshot of typical usage. Loo

<< I have never said that the purchase should be based on emotional feelings. I have already sstated several times now that purchasing decisions should be based on the best performing device in your price range. >>

That's emotional: you've given up practicality and value in favor of maximum performance for pure enjoyment. Logic goes out the window and now we're Saturday shopping. Now, there's nothing wrong with such a buying strategy, but it can't be held up as the most optimal use of your funds. And it's laughable to claim a price/performance advantage in that case.

<< Our contention is that the test is no longer useful. >>

And you are, of course, wrong. Both StorageReview and the manufacturers of both SCSI and IDE drives continue to place some weight in Disk Winmarks. The fact that you dimiss them entirely only shows how desperate you are to police any bit of information that shows your precious SCSI technology hounded by inexpensive alternatives.

<< Again I say, I am not trying to *impose* a rule. >>

Yes you are, Fredrick. Denying a rule is the same as imposing the opposite. Your rule is that value and practicality are totally subjective and have nothing to do with price/performance but everything to do with the assessment of the buyer. That's nonsense.

<< So instead of upgrading our computers, as long as they work, all the money that would be spent on computers should go in the bank then right? >>

Not quite. As long as they meet the needs of the users and as long as a newer technology woulnd't yield better value, the money can be used more efficiency elsewhere.

<< Basic computing skills can be learned in a classroom and practiced on lab computers. >>

Then we're simply substituting lab computers for home computers. The demand is still there and the same value purchasing decisions apply.

<< CPU and RAM are a large bottleneck, but once you've got the best there, what's left to upgrade but the disk subsystem? >>

That's a false dillema. You're assuming it's worth it to upgrade. Most often, maximum value is not achieved with the fastest component available, as I'm sure even you understand. And since you admit that, even in this extremely rare professional 3D rendering environment which has no bearing on home or business PC's, the hard drive is not the limitting factor in the machine's main duty, how can you claim a SCSI setup will be practical?

<< IDE RAID has extremely high CPU utilization because almost all IDE RAID solutions are software based, they are not hot swappable, so there is more potential downtime. >>

Fine, get hardware IDE RAID. It's still a far, far cheaper solution than SCSI RAID. And hot swappability (swappableness?) is not required because all modern RAID controllers have fault detection and automatic redundant backup switching. If there's a proble, you just switch to the backup drive on the fly. No downtime. No need to swap anything. No expensive SCSI trophy.

<< This is an embedded computing system, on an x86 processor (AMD), with SDRAM. >>

Fine, we'll talk about your beloved embedded system, even though it has no bearing on this discussion. Simply compare the cost of a SCSI controller and SCSI drives with the cost of an IDE controller and IDE drives, while factoring in the performance difference. Decision: ATA. End of discussion.

<< I contest your use of the word &quot;Free&quot; anyway, if you purchase a product and it comes bundled with something else, that extra &quot;something else&quot; was not free, it was most certainly included in the cost of your product. >>

Free in the sense that, since every modern consumer motherboard has an IDE controller, and since the SCSI user must pay for that IDE controller, then its cost is not included in a price differential calculation. Comprende?

<< If you wish to get optimal performance from an all IDE system, you want every device on a seperate channel, requiring 3 or 4 IRQs, depending on your addon controller. >>

Such &quot;optimal performance&quot; is basically irrelevant to typical usage since drive to drive transfers on the same channel are quite rare and intelligent placement of devices can almost eliminate them. Nevertheless, your claim that typical SCSI systems use less IRQ's than typical IDE systems has been dismissed. Move on.

<< CD-Rs are great for backups except that they are extremely slow. >>

Six minutes for 700M with any recent 12x burner. Since you don't backup your programs (you have legal copies of those already) then only your data is unsafe, and few people's personal data amounts to more than 700M. But even if it does, the burner is still far more practical than some exotic external SCSI hard drive contraption. The CD is ubiquitous. Retrieving the data won't require a second thought.

<< If you have access to another SCSI rig, then you just move your removable drive to that one to get data off of it. >>

And if you don't? A little bit of downtime, eh? Maybe SCSI wasn't such a good choice for productivity, after all.

<< Or you move your SCSI card to another computer. >>

Talk about ease of use there.

<< If your computer was physically damaged, then you must buy and configure another one anyway >>

But you'll have to waste time twiddling your thumbs while you wait for it to be completed. Meanwhile, the IDE burner guy has his data safe on his friend's machine and he's even getting some work done.

<< Backing up from one SCSI HD to another removable SCSI drive is extremely fast, and it bypasses the limitations of removable media >>

What limitations? The fact that a CD can be read in any computer with no fuss? That extra storage can be purchased for pennies? Or the fact that the CDRW drive can be used for a host of other useful activities as well? Some limitations!

<< Backup cannot be performed during system downtime if there is no system downtime. >>

So a person is using the computer 24/7? Unlikely. And even if they were, what's to stop them from starting a BurnProof burn? It takes all of ten seconds, and then you forget about it.

<< lol ok yes, of course the hard drive is not used for a workspace, this is hardly a feature of &quot;modern&quot; software >>

The point is that programs are written to use the disk as litte as possible. So drive performance is rarely ever the bottleneck.

<< Has anyone ever told you that you are pompus and arrogant? >>

Yup. Resorting to name calling usually means they're getting frustrated with a loosing argument and are calling it quits. So there's hope for you yet.

<< Hmm, to whoever gave me the rating of 0, thanks. A little vindictive, are we? >>

It wasn't me. I don't do that kind of thing.

Modus
 

Hanpan

Diamond Member
Aug 17, 2000
4,812
0
0
Well my p2b-ds just came in so i'll be firing it up tonight with my new cheetah 18xl 9.2 gig hdd. I'll let you know how much difference if any it makes. ;)
 

Santan

Senior member
Oct 23, 1999
572
0
0
ALL SCSI - ALL THE TIME, ANY TIME...3 SYSTEMS AND STILL GOING ALL SCSI IN THE FUTURE...Im Sticking with 10000 RPM and less than 5ms Seek times...

I'll Leave the 7200 RPM and 12ms Seeks to the IDE CLAN...
 

CHINESE

Member
Jan 31, 2001
63
0
0
so many replies, wow , i don't believe it. do people actually read all these threads? is this topic really that interesting? oh yeah, i use ide all the way, since i am a poor college student.