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Defrag with RAID-0

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pakuens

Junior Member
Has anyone seen problems with using Defrag on a RAID level 0 setup? I was intending to invest in a RAID disk and stumbled across a discussion in another forum where two different users (Raptor drives, RAID-0) discovered that their HD performance benchmarks (Sandra) took a nosedive after they ran the defrag in Windows XP. Essentially, they lost about a third of their original benchmark performance level. Re-formatting recovered performance, and one of them tried the Norton defrag and recovered performance. Huh? ---> Does this make any sense?
 
News to me as I've defraged my Raptors with Norton, Diskeeper, Windows, Sys Suite and O&O...never took a performance hit that I know of to date other then minor pts. between Proggies.
 
News to me also, and it really doesn't make any sence.

Don't own any Raptors yet. But I do have 2 80gig 8meg Maxtors raid 0,
and have't noticed any slow down after defragging with Windows over
several months.

I didn't use Sandra for benchmarks.

Edit; Welcome to the forums
 
I might see that being a possibility with a software raid array, but if its managed by a hardware controller, I dont data striping would be affected. Windows processes the logical disk as a single drive. All the footwork and striping is handled by the raid controller. Keep in mind, like all benchmarking utilities, SiSoft sandra has its limitations. I myself have never gotten a satisfying result from the filesystem benchmark when testing the array in my fileserver. It is made up of 5 Ultrastar SCSI disks on a smartarray 3200 with 64MB of battery backed cache 🙂
 
Thanks for the replies --> I got my answer. I don't really care about their particular hardware, I just wanted to make sure this wasn't a well-known deficiency of RAID-0 arrays. The important thing is that I can now go forth in blissful ignorance and buy more stuff 😀

BTW, only one described his system hardware and I assumed he was using the SATA controller on his motherboard (Asus P4P800 ). No telling.
 
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