2850 Raid Help

Question

Hello Everyone,

I have a PowerEdge 2850 that died over the weekend .. the person who was here before me was stuip enough to set up driver 0,1 as raid 0 and drivers 2,3,4,5 as raid 5 ..

So I have been charged with the task of getting this back up and running .. it was drive 0 that failed .. so what I am tring to do is break the raid 0 and turn it into a raid 1 for drives 0,1 and leave the rest alone .. but in the bios raid config it will not let me do a thing ..

Any advice ??

Thanks ..

theflash1932 · Accepted Answer

'Objects, Logical Drives and delete the Logical Drive that is your RAID 0'

Aloron · Answer

Ok Flash but how do i delete the logical drive ?? that is what is driving me nuts .. Thanks ..

Aloron · Answer

Hi Chris

Yea drive 0 is doa it will not even power up and when it does there is a grinding noise from it so it dropped the head from the sounds of it ..

driver 0,1 can be wiped clean .. i dont care about them its the only 4 drives i worry about .. I have new drives for 0,1 and just need to know to clear that raid out of the bios so i can make a new one with the new drives and have it set to raid 1 ..

thanks ..

theflash1932 · Answer

Are you trying to recover your RAID 0?  or are you giving up on it and wanting to configure a RAID 1 so you can reinstall/restore from scratch?

theflash1932 · Answer

So, boot to CTRL-M in the BIOS, Configure, View/Add ... if you are prompted between NVRAM and Disk View, choose Disk View.  Then go to Objects, Logical Drives and delete the Logical Drive that is your RAID 0.  Then go to Configure, View/Add to set up a new RAID 1 with drives 0,1.  This will not affect your RAID 5 wih the other disks.

DELL-Chris H · Answer

Aloron,

As it lies, if drive 0 is failed then you won't be able to recover that array. If it simply fell offline then you can access the controller bios and force drive 0 back online. If the array comes back up then we have a chance to then convert to a raid 1. The issue you have is that the raid 0 isn't redundant, so with drive 0 failed the array data is incomplete. Do you have a backup of the data on that array? If so you can replace drive 0 (if truly failed) and then delete and recreate the array as a raid 1 and then reinstall the OS and restore the data from backup.

Aloron · Answer

Hello theflash1932,

the hard is gone so boss told me just to start over .. the trick though the raid 5 drives 2,3,4,5 need to be saved as they have important information on them ..

so drive 0,1 are set in the bios right now was raid 0 , i wanna change that to raid 1 and leave everything else alone as to not lose data ..

hope that makes sense ..

PowerEdge HDD/SCSI/RAID

2850 Raid Help

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