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Server array

Posted on 2014-01-24
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Last Modified: 2014-02-17
Hi Guys,

One of my machines restarted (it just happened to be email server) its a win2k3 machine,

it boots to just after bios it sees the drives, i just really hope it hasnt wiped the data, whats the best way to check?
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Question by:jonathanduane2010
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Author Comment

by:jonathanduane2010
ID: 39806091
its mirrored...i think
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Expert Comment

by:Perarduaadastra
ID: 39806103
If it sees the drives but doesn't boot, and you can't remember what type of RAID it is, reboot and invoke the RAID controller utility. This will tell you what the RAID configuration is, and will also tell you if there is a problem with one of the disks.

Having identified the faulty disk, if you replace it the array will normally auto-rebuild in the background.

What server is it? I had a disk failure in a Dell with a RAID10 array recently, and when it rebooted after a Windows update at stopped during the POST and waited for a keypress before continuing to boot normally, albeit with a degraded array.

Of course, the problem may be entirely different; do you know the reason for the sudden reboot?
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Author Comment

by:jonathanduane2010
ID: 39813338
its mirrored and raid 5...I am worried that all the data will be wiped from the drives is there anyway of checking if there is data on the disk?
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Author Comment

by:jonathanduane2010
ID: 39813340
when i boot it it justsays status "rebuild"
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Accepted Solution

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Perarduaadastra earned 460 total points
ID: 39824930
The array is likely to be either RAID1 or RAID10 (mirrored) or RAID5 (striped, with distributed parity), but not both.

How many disks are there in the array, excluding hot spares? If it's an odd number the array is RAID5, if it's an even number it could be any of the three I've mentioned. There are other varieties of RAID, but levels 2, 3, and 4 aren't used and the others are unlikely to be supported on a server that's running Windows Server 2003.

If the disks are large the rebuild could take a very long time, especially if the server is as old as the OS on it suggests.

Have you been able to get into the RAID controller utility?
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