Does Intel SRT work on RAID 0?

[NARUTO-v-SASUKE]

First of all, I searched the forum but couldn't find a straight answer.

As I understand it, Intel SRT will significantly boost a mechanical HD's performance to an "almost" SSD level performance.

I'd like configrue two WD Velociraptors in RAID (0) and use the SRT to further enhance the performance. Is this doable?


Questions you might have:

A: Why two V's? IMHO, SSD reliability is still not quite up there yet. My main concern is that a tiny corrupted file - no matter how insignificant will eventually lead the files unusable. The corrupted file will *work for now, but it will eventually rear its ugly head. As mechanical drives have been around for over 70 years now and the technology is super mature. Until SSD reaches mechanical drive's data reliability, I will wait until the technology catches up.

B: Any possible data corruption regarding RAID (0) is TOTALLY mitigated by the newest Adaptec RAID 6405 which needs no BBU! Has Maintenance-free cached data protection that will instantly protect and correct any mismatched
bits.

Thanks.

NvS

 

[greenhawk]

I do not have all the answers, but have enough to think you are looking at the wrong thing

As I understand it, Intel SRT will significantly boost a mechanical HD's performance to an "almost" SSD level performance.

a few reviews about it around. From my reading though, (I was paying attention to v-raptor performance for a similar reason) it does not help fast drives all the time. In places it causes performance loss.

One of anantech's bentchmarks showed a non-ssd assisted drive performed better than with a SSD (at least, that was how I was reading that part of the review).

Also, when adding a "cheap" SSD, performance on high performing drives suffered even more.

But as with all cache systems, it only helps for the files you use often, not the whole drive. So benifit should vary based on SSD size and your usage patterns.

I'd like configrue two WD Velociraptors in RAID (0) and use the SRT to further enhance the performance. Is this doable?

no idea on this one. I would also like the answer but not expecting it. I suspect given how raid controllers generally work, it needs to be a option in the system otherwise it does not help. Only way around it might be to use OS based raid on top of the motherboard raid, but that is backwards to how you want it.

Though one of the post on the front page of the site did mention a third party company looking to bering out something similar, but it would be 100% software and not tied to a motherboard.

A: Why two V's? IMHO, SSD reliability is still not quite up there yet.

If wanting reliability with using 2 drives, you would be wanting raid 1 (mirroring), not raid 0 (performance).

of course, depending on the SSD system you select (as their is two modes of operation), one of them is more likly to increase the chance of data loss.

B: Any possible data corruption regarding RAID (0) is TOTALLY mitigated by the newest Adaptec RAID 6405 which needs no BBU!

Not sure where you are going with this, but for the intel SSD caching to work, the HDD and the SSD need to be attached to the intel controller on the motherboard. Placing the HDD onto the adaptec 6405 means they are not available to use the SSD caching.

Personally, for what you want, I suspect waiting for the third party software might be a better option. Failing that, looking at some of the third party hardware already on offer that does something similar to SSD caching. IIRC Toms hardware did a review on some of them in advance of the intel SSD caching release.

 

[Old Hippie]

I'm thinkin' you're wayyyyyy off base.

There's nothing going to perform like an SSD unless it's a memory cache that is same size as an SSD.

If you're thinking you can cheaply match SSD performance with a mechanical HDD forget about it.

Any possible data corruption regarding RAID (0) is TOTALLY mitigated by the newest Adaptec RAID 6405 which needs no BBU!

All it does is rely on a super cap and 4GB NAND flash memory (extra cost) to save data that hasent been entered because of a power failure.

It's got nothing to do with data corruption in a RAID0 set-up.