Post your hard drive benchmarks!

Western Digital 160gb SATA
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Western Digital 500gb SATA
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Western Digital GP 1000gb SATA
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I think i'm going to like these new OCZ v2's :)




Just got a 2nd one and set it up in raid on my Asus P5Q mb, just using the onboard intel raid controller and 128k stripe.


edit: guess i ballzed up the imageshack images, will reupload tonight. (270MB/s and 0.2ms access is what is shows)
 
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First raid setup (0)

This actually cost me a small fortune as I had to buy another version of Vista to get it installed....

HDtune.jpg
 
I had the upgrade version which needs an OS on the HD before it will install, Obviously I couldnt boot my OS with RAID set to on in the Bios so I had to fork out more money to the Bill Gates retirment fund :P
 
My raid seems a little slow lately, what could be up with it? 5x500gb Raid 5 on perc 5i with latest firmware and drivers

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Settings in the MegaRAID storage manager are:

Read Policy: adaptive Read Ahead
Default Write Policy: Write Back
IO Policy: Direct IO
Access Policy: Read Write
 
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Cotti said:
I had the upgrade version which needs an OS on the HD before it will install, Obviously I couldnt boot my OS with RAID set to on in the Bios so I had to fork out more money to the Bill Gates retirment fund :P
Click to expand...

You can do a clean install using the upgrade disk. It's a bit messy as you have to go through the install routine twice - once booting from the Windows DVD and then a second time reinstalling Vista from within Windows.

I've not tried it with raid, but would have thought that it would work as the first install is completed from the Windows disk in the same way as if you were using the full Windows disk, not the upgrade.

http://www.winsupersite.com/showcase/winvista_upgrade_clean.asp
 
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crazybones said:
You can do a clean install using the upgrade disk. It's a bit messy as you have to go through the install routine twice - once booting from the Windows DVD and then a second time reinstalling Vista from within Windows.

I've not tried it with raid, but would have thought that it would work as the first install is completed from the Windows disk in the same way as if you were using the full Windows disk, not the upgrade.

http://www.winsupersite.com/showcase/winvista_upgrade_clean.asp[/QUOTE

Ahh I didnt know about that workaround, Still usefull for anyone that needs to do it tho!
Click to expand...
 
wolvers69 said:
Ok so I've got the write back cache working and here's the results;

Improved again in all areas :)

I don't know why the read speed is so all over the place though? Peaks at 500MB/s!! :eek:
Click to expand...

Generic question, but is enabling the write-back cache really that much of a bonus?

I suspect people are looking at their burst speeds and thinking how great the RAID setup is when it reports back that write-read speed is in the 1000s of MB/s. This is a false reading, given that the software is writing to the cache then reading it back, not from the disk.

I can see that the cache will be beneficial in normal apps, but not to the degree that is indicated by the speed test. In reality, probably about a 10th of the speed that is really shown since it's probably rare in the real world that you would write and read the data again within the short time it takes for it to be written from the cache

My recent foray into RAID 5 with write-back nearly backfired, when the system blue-screened. The system identified that there had been a problem and the disks were inconsistent, and I was able to rebuild the array without losing the data. Don't think I would have been so lucky with a RAID 0 array that so many of you run. Additionally, how many of you that have the cache enabled are running UPS? Food for thought
 
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