Defrag and RAID 0

[Charlie]

I just installed two SATA drives as RAID 0 and did a clean install of
Windows XP Professional. I then installed all my software such as Office,
Ulead Video Studio, Diskkeeper 8, etc. When I run a disk analysis using
Diskkeeper 8 it shows my drive as heavily fragmented. Why is my C drive
showing as heavily fragmented when I just did a clean install of everything?
Can I use a standard defrag program on a RAID 0 drive?

 

[Kristi]

I just installed two SATA drives as RAID 0 and did a clean install of
Windows XP Professional. I then installed all my software such as Office,
Ulead Video Studio, Diskkeeper 8, etc. When I run a disk analysis using
Diskkeeper 8 it shows my drive as heavily fragmented. Why is my C drive
showing as heavily fragmented when I just did a clean install of everything?
Can I use a standard defrag program on a RAID 0 drive?

a) the extreme fragmentation after an install is quite normal, imo

b) re raid - I should think so but don't know for sure.
hth
Kristi

 

[William Wang[MSFT]]

a) the extreme fragmentation after an install is quite normal, imo

Yes, it is quite normal. Base on our experience, the system volume is
usually heavily fragmented after the installation.

b) re raid - I should think so but don't know for sure.

We should be able to defrag RAID 0 because mirroring is handled by the RAID
controller so Windows treats it as just one drive. I've heard that some
users did so although I could not find any public article saying that.

Sincerely,

William Wang
Microsoft Online Support Engineer

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[Greg Hayes/Raxco Software]

Charlie,

Fragmentation just happens

ANY defragmenter (including the built-in defragmenter) can be run on any
type of RAID without any issues.

- Greg/Raxco Software
Microsoft MVP - Windows File System

Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a
commercial defrag utility, as a systems engineer in the support department.

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