Defragment Server 2008R2 Storage Server

Is it "safe" to defragment a 2008 R2 64bit RAID 1 storage server on the weekends.  It's one of those things I'm paranoid to do for fear it will clear out the data somehow?  Are there considerations to take?
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bjv211Asked:
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DavidConnect With a Mentor PresidentCommented:
Of course it is OK.  How can the RAID controller possibly tell the difference between a defrag, a copy command, or anything else?

Since this is RAID1, there is no performance advantage on writes, and read performance, best case, would be about 1.5x as fast as non-RAID1.   So all I can offer is if you consider how long it would take on a non-RAID, then allow same amount of time.

Nothing wrong with killing the defrag, as long as you terminate it from the standard windows option to end defrag early.  don't do the task mgr.
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rjwesleyConnect With a Mentor Commented:
just backups of course, completely safe to do so.

Rob
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bjv211Author Commented:
Is there any way to figure out how long it will take to excecute before running it?
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