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RAID-10 initialization taking between 30 - 40 hours to complete

Posted on 2008-10-01
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Last Modified: 2012-05-05
Dell PE 2950 III with PERC 6/i.  Building a RAID-10 array, 4 drives, total 738 GB capacity.

After defining the virtual disk using the PERC 6/i BIOS menus, PERC 6/i began a "Back Init" operating for the RAID-10 virtual disk.

That process has been going on for over 20 hours and it is still only at 57%.  

Is this typical when initializing a RAID-10 virtual disk?

I've initialized RAID-1 and RAID-5 virtual disks in the past on the same hardware, and they only took between 30 - 80 minutes to initialize, even with large size virtual disks (For instance a 1TB RAID-5 VD took about an hour or so to initialize).

So I'm trying to determine whether it's standard for RAID-10 virtual disks to take this long to initialize, or if there's some type of underlying isssue here that I need to investigate further.

Also:  

Under Operation, PERC is saying "Back Init".  Usually when initializing
a virtual disk, it just says "Init".    

So I'm not sure what "Back Init" is all about.  I've scoured the PERC 6/i
documentation and I have found no mention of "Back Init" versus "Init".

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Question by:Substratum
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Expert Comment

by:cybersean
ID: 22617067
Try to download the latest firmware and driver for the PERC cards from dell's website.
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Accepted Solution

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Substratum earned 0 total points
ID: 22689390
Because of the complexities of RAID-10 and the size of the RAID-10 volume being initialized, apparently this is normal.    Back Init stands for Background Initialization.
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