2 raptors vs ssd

[slick2004]

would 2 raptors in raid be faster than 1 ssd?

 

[Broheim]

would 2 raptors in raid be faster than 1 ssd?

short answer: nope

 

[Burner27]

short answer: nope

+1

Raptors would probably get bitch-slapped.

Also, the amount of noise, heat, and electricity used by those Raptors doesn't compare to an SSD. (I.E.-SSD = No noise, very little(if any) heat and very little electricity(think green))

 

[smakme7757]

SSD all the way

 

[Puffnstuff]

I'm runing both and the velociraptor 600gb, the fastest of the lot, doesn't even compare to the ssd. There are plenty of benchmarks available on the net for you to compare performance. With a single adata s599 I get my win 7 ult x64 sp1 desktop in less than 15 seconds.

 

[taltamir]

would 2 raptors in raid be faster than 1 ssd?

not even close, not even remotely close to being close.

 

[nanaki333]

replaced 2x velociraptors in raid0 in my wife's computer to an intel ssd. no comparison.

 

[postmortemIA]

only benchmark in which raptors would be faster is sequential write.

btw 2xvelociraptors are way faster than regular 7200rpm drive; but not nearly as much as ssd feels faster than raptors.

 

[taltamir]

only benchmark in which raptors would be faster is sequential write.

That depends on the SSD and raptor model, some SSDs will still win.

SSD will still have ~100x the random access speed, which makes it much more attractive.

 

[Emulex]

HD will outlast the ssd on linear editing sequential writes.

you'll kill an ssd working with 1.2TB/600gb of video daily - the velociraptor is meant to rock writing all day long.

MLC SLC would probably wear out in less than a year at that level duty cycle balls out.

the velociraptors are "ENTERPRISE" drives btw. that is TLER. SSD is not so it would not have a place in any of my servers

 

[Phynaz]

HD will outlast the ssd on linear editing sequential writes.

you'll kill an ssd working with 1.2TB/600gb of video daily - the velociraptor is meant to rock writing all day long.

MLC SLC would probably wear out in less than a year at that level duty cycle balls out.

the velociraptors are "ENTERPRISE" drives btw. that is TLER. SSD is not so it would not have a place in any of my servers

I'll let EMC know their SSD's aren't enterprise class drives :awe:

 

[taltamir]

HD will outlast the ssd on linear editing sequential writes.

you'll kill an ssd working with 1.2TB/600gb of video daily - the velociraptor is meant to rock writing all day long.

My intel G2, 80GB. Has 80GB of space and 1.86x data amplification (tested), and 5000 writes cells. 80*5000 = 400000GB life * 1TB/1024GB = 814.68TB life
1.2TB written/day * 1.86 write amplification * 365 days/year = 814.68 TB/year

So yes, you would run out of writes in one year with your scenario... Naturally a 160GB intel G2 would last 2 years and a 320GB intel G2 would last 4 years under your scenario.
However, who the heck writes 1.2 terrabytes of data a day? to an 80GB drive?

A blueray image is 25GB.
If I WAS writing 1.2TB a day of professional video editing I would be using an intel 320GB G2 SSD despite eating through the writes... When I run out of writes in 2015 there would be something much better to replace it. And do you work 7 days a week? seriously though, 1.2 terrabytes/day? why so much?

 

[Ertaz]

I'll let EMC know their SSD's aren't enterprise class drives :awe:

This.

 

[Bauss]

Pretty much repeating what others have said: An SSD is entirely different technology that's orders of magnitude faster than HDD technology in one key area. Relatively speaking, there's no access latency. When you want your data, there it is. There's no spinning a disc for it. It's simply stores it in chips.

No matter how fast your hard drives get, or how many you use, there's no way to access the drives much faster than they're being accessed right now. You can get pretty impressive throughput on a RAID array, but much of the 'quick' feel of an SSD simply comes from it being an SSD.

That said, If you're looking to do lots of sequential I/O, with lots of space, at a much lower price, a pair of raptors may do the trick.

 

[taltamir]

There's no spinning a disc for it..

I think you are the first person I see to mention spinup time... i kinda forget about it cause i set my computers to never spin down the disks, but if you have a green drive or the default setup then when you try to access an idle drive it has an access time of several seconds, not several milliseconds, because it has to be spun up.
Even if the spindle drive is already spun up an SSD is faster (100x for random speed, 2x for sequential), spin up just makes it so much more pronounced.

 

[yinan]

I'll let EMC know their SSD's aren't enterprise class drives :awe:

Is anything EMC makes Enterprise grade? We have a ton of their crap at work and it is slow as shit. We are lucky to get 70-80MB second transfer rates off it over 8GB fiber 10GB ethernet.

 

[taltamir]

Is anything EMC makes Enterprise grade? We have a ton of their crap at work and it is slow as shit. We are lucky to get 70-80MB second transfer rates off it over 8GB fiber 10GB ethernet.

enterprise grade =! fast.
Enterprise grade = slow, expensive, but supposedly extra reliable.

 

[Chapbass]

enterprise grade =! fast.
Enterprise grade = slow, expensive, but supposedly extra reliable.

Just look at T1 lines that I see companies paying out the ass for every day. same idea.

 

[taltamir]

Just look at T1 lines that I see companies paying out the ass for every day. same idea.

lol @ T1... i remember back in the day it was impressive, I the home user was stuck with 24.4k dialup (we didn't even have proper 28k or 56k dialup where I lived) or a ridiculously expensive 128k ISDN.... while business get the awesome 1.5mbps of a T1...
Now I got 25mbps fios at home and businesses still pay through the roof for T1s...

I remember once I got to order internet for a place of business... I contacted comcast and they said that because we are a business we can't buy their home package... we get the business package, what was that? You get to pay twice as much for half the bandwidth and none of the perks... except you instead get "business class reliability and 24/7 available technical support line dedicated to businesses"