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10,000 RPM vs. RAID

A

atchon

Junior Member
I was wondering which setup would perform better speedwise or if there would even be a noticeable difference. Its between a single 10,000 RPM SATA 150 drive or 2 SATA 3.0 Gb/s raided together. I know the RAID would give me a bit more space for the same price as the 10,000 rpm. I currently have 2 80GB 3.0 Gb/s raided together, but I'm running low on space but I really don't need a whole lot more so a 30 GB 10,000 rpm would be fine as would any RAID setup.

Any opinions would be greatly appreciated. The harddrive would be my primary one as well as I plan to do a clean install on both my current drives and the new one.
 
I would like to know this also. I have one 320gb Seagate SATA 3.0GB/s and was wondering if it would be benificial to add anther 320gb in raid 0.
 
The amount of performance you will see is negligible compared to all that data lost when a disk fails. If you do have all your data stored elsewhere, not on the array, then it's worth the time.

If you get a 16MB 74GB Raptor for you OS, you will not be disappointed!
 
Yea disk failure wouldn't be a real problem, I backup everything onto 2 external harddrives, I'm leaning towards the 10k RPM raptor have you ever used a RAID with 3.0 Gb/s before? any comparison?

Also what about SCSI would a 15k RPM run through a PCI SCSI controller be even worth looking into or would that be overkill for home use.
 
1. RAID 0 w/ SATAII would leave the drives read/write times as the bottleneck. You may be able to use half the bandwidth at peak perfomance. the Raptors have faster read/writes, but are not SATAII, so limited to 150MB/s instead. I'm sure that 2xSATAII drives would be comparable to 1 Raptor.

2. 15k SCSI setup isn't overkill(still pricey), but the PCI bus would hinder it's performance.
 
yea have 2 320 seagates in raid 0, the are faster then my 2 8mb raptors i had. burst is not as fast but its really not noticeable at all.
 
I ran two 80 gig WD's in raid0 for a while, and didn't really notice any speed increase over just one. Although the only thing I was doing was booting windows and loading games, so I'm probably not the best example. It all comes down to what you're going to do with them.
 
I had raid O installed many times, and it was a little faster than my raptors, but not much. I would advise against raid O as when it goes it goes and your so out of luck. and it does go.
Good luck
 
The Raptors are overrated IMO. If you get a top performing 7,200RPM SATA drive, you will barely notice a difference between it and the Raptor. Not only that, but the faster 7,200 drives outperform the Raptors in quite a few areas.

RAID is also overrated and only really helps with transferring very large files, which does not reflect normal usage. Most files are less than 1MB, which negates most of the benefit that RAID provides.
 
Thanks for everyones comments, One further question I looked on ebay and it looks like you can pick up some cheap 15k rpm SCSI drives low capacity the only thing i can see is they have 3.6 ms 16 bit memory interface and buffer size of 8. How would two of these setup on a cheap RAID card perform compare to 2 SATA 3.0 Gb/s in RAID ?

One of the reasons I like RAID is i do transfer relatively large files on a daily basis and I have seen a noticeable speed increase with my current SATA RAID compared to the IDE drive I use to use.
 
For large file transfers the 15K drives won't make much difference. The higher rotational speed helps with seek times but not much else.

That said, I would take a 15K cheetah over any Raptor, provided that the cost was the same.
 
Advantage of 10k and 15k drives: Fast seek time - useful for random access (reading a lot of different files all over the drive). Transfer rate is fast too.

Advantage of RAID-0: Fast transfer rate. (Sum of transfer rates of the individual drives in the array). But NOT faster seek time. You won't improve the seek time a bit no matter how many drives you stripe.

So, I would recommend:

1. For the boot drive, use a Raptor or better yet, a 15k scsi.
2. For the data drives, use RAID-0 array of 7200rpm drives.
 
Originally posted by: SickBeast
The Raptors are overrated IMO. If you get a top performing 7,200RPM SATA drive, you will barely notice a difference between it and the Raptor. Not only that, but the faster 7,200 drives outperform the Raptors in quite a few areas.
Click to expand...

Wrong, and I'm willing to bet that you've never actually had a personal system with a new 7200rpm drive and a raptor. My new machine that I built loads everything slower than my old machine (both are fairly speedy machines, but the newer one definitely has the better components (sans the HDD)). The HDDs being used on the two machines are a Seagate Barracuda 7200.10 750GB (OS is partitioned off) and a 74GB Raptor.

The differences are why a 150GB Raptor is being delivered to me today from NewEgg 😛.
 
Originally posted by: Aikouka
Originally posted by: SickBeast
The Raptors are overrated IMO. If you get a top performing 7,200RPM SATA drive, you will barely notice a difference between it and the Raptor. Not only that, but the faster 7,200 drives outperform the Raptors in quite a few areas.
Click to expand...

Wrong, and I'm willing to bet that you've never actually had a personal system with a new 7200rpm drive and a raptor. My new machine that I built loads everything slower than my old machine (both are fairly speedy machines, but the newer one definitely has the better components (sans the HDD)). The HDDs being used on the two machines are a Seagate Barracuda 7200.10 750GB (OS is partitioned off) and a 74GB Raptor.

The differences are why a 150GB Raptor is being delivered to me today from NewEgg 😛.
Click to expand...

I agree completely on this. It is also why I have a 150 GB Raptor and 4x 500 GB Seagates going into my new rig. The Seagates will be RAID 5 on a dedicated RAID card (Promise SuperTrak EX8350).
 
Thanks everyone for your input, I'm going to order a Raptor to give that a shot see how it performs, and as luck would have it I was talking to one of my friends about this and he said he had an SCSI drive laying around, so I will be able to compare both now.
 
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