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Holy slow-writing raid array, batman!

slimbrady

By slimbrady
in Solid State Drives (SSD)

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slimbrady

slimbrady

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Ok so the read speeds are less than I would expect from a 2x raid 0 array but the writes are just....well.....I'm not even sure what to say about the writes.

FYI this is with a painstakingly optimized windows OS, 4.2ghz CPU and 6gigs of DDR3(10700). Am I missing something here?

http://i1183.photobucket.com/albums/x478/slimbradyCA/ATTO.jpg

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slimbrady

slimbrady

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Yes, I didn't have a choice since the R's went out of production/unavailable anywhere....and I'm sure you'll say something like to the effect that nothing is guaranteed or not recommended etc...etc... but it was working quite well when I first created the array I was seeing closer to 500mb/s reads and 450mb/s writes and remained at those numbers for at least a week or so. With only the occasional double-reboot required to recover the array from "offline" status following a reboot or cold-boot. Unsure exactly which drive is causing it but I'm guess the force. Needless to say, that is not what I care about. At this point I'm thinking of putting the single V128 I have back in and dumping one of these into my laptop as the Nova would probably outperform this array at this point.....but again.....it was seeing above 450mb/s for reads AND writes when it was first created - posted in some thread my ATTO but can't seem to relocate it.

 

 

 

I had another raid array going and that is what you see in my system specs. I put OOC next to it after one of the HDD's sata power connectors burst into flames. Stands for out of commission. Wasn't sure if I'd be able to repair or not and I'm not on here often enough to keep my specs 100% accurate at all times.

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RAM GUY

RAM GUY

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You are welcome to try what you like but as you mentioned its a bit of a gamble.

 

I would suggest using Accronis to make an image of the drive (if you are using Windows) then use Parted magic to Wipe the drive under tools select Erase Disk and Secure Erase and then, install the drive on the system you will be using it as a second HDD and format it with the QUICK Option Only and 4k Allocation then test it with Atto again to be sure its running properly then delete the partition and image the drive back to its original image and you are done.

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slimbrady

slimbrady

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I went through the trouble of most of that a week or so ago but I was unable to secure erase them....i forget the error exactly but it was something about them being "frozen" maybe? Whatever state they can be in that won't let you secure erase and prompts you to do a regular erase with PMagic.

I tried different sata ports as well as a couple SATA > USB adapters. Attempted also to not power them up until PMagic had loaded because I read that has worked for some and worked once for me in the past but not this last time.

Is there some voodoo I can put on 'em to release the locked state?

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Frozen state is normal and easy to get around, when you run the application it may tell you the drive is locked. If so exit the erase application then unplug the drive power then the data cable for about 1 Min then plug in the Data then the power and run the Secure erase it will unlock the drive.
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slimbrady

slimbrady

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Thanks for the tips, I was indeed able to secure erase the drives by following those steps. I believe I have found the problem.....this is the reactor's ATTO immediately following a secure erase and 4k allocation format using it as secondary drive to my OS drive:

http://i1183.photobucket.com/albums/x478/slimbradyCA/before.png

 

I switched to AHCI mode in bios and installed the latest AHCI drivers from the AMD Catalyst 10.11 release and it made little to no difference:

 

http://i1183.photobucket.com/albums/x478/slimbradyCA/ReactorPostAHCI.png

 

And here is the Force's benchmark for comparison:

http://i1183.photobucket.com/albums/x478/slimbradyCA/ForcePreUpdate.png

 

 

 

Is there no recourse or update I can install to get the Reactor closer to spec?

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slimbrady

slimbrady

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1st pic can't be right for JUST the Reactor. 400 MB read?

 

Tried it on a different SATA port by itself?

 

I have tried ports 3 & 4 with the Reactor but I'm unsure what you mean when you say "by itself" because I have to have the HDD I loaded windows onto plugged in at same time no matter what....But other than that I don't have any other drives hooked up via SATA or IDE(no IDE on this mobo lol).

I could try switching to one of the secondary controllers that I have onboard but I don't think it'd make much of a difference...most likely be worse.

 

Here's the first pic I meant to post(grabbed wrong one of photoshack).

 

 

http://i1183.photobucket.com/albums/x478/slimbradyCA/Reactor60gATTO.png

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That is a little low but still with in spec for the reactor series SSD which is:

250 MB/s sequential read and 110 MB/s sequential write!

I would suggest using the reactor drive in another system and purchase another force series SSSD for this system.

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