Raid set failure "Dell 2850"
Posted on 2010-01-04
So we have a Dell 2850, with 4 SCSI Ultra 320 disk`s.
2 x 36 GB in raid 0 with windows 2008(Dont ask me why raid 0 was chosen in the first place)
2x 300 GB in raid 1 for data.
So 1 of the 36 gb`s disk crashed and the server went down. We have then tried different things to bring it backup again. This involved in taking one of the data disk and put into another server(Dell 1750) to copy data. That did not work
So we got 2 other drives( 36 gb) removed the 2 x 300 gb disk and installed windows 2003 on the dell 2850.
When finished, we put the 2 x 300 gb disk back into server, and thought now they should work fine. We haven`t touched anything in the raid controller setup.
But for some strange reason they fail.
So question is now, what to do with those 2 x 300 gb disk. They have alot of important data.
They are not broken or anything like that.
Its very strange, since it`s the same server they where in before, and no config was changed.
Could I follow this guide taken from another issue and try it without any risk?
You can do the following with NO harm to the data - If we get a config, we have a much higher chance of getting this to work:
Power off the server - unseat all drives a few inches.
Boot the server - hit Ctrl+M when prompted
Goto Configure > Clear Configuration (with no drives in - *stressed*)
Accept any changes
Then goto objects > adapter > (select adapter if selection screen comes up) > Set Auto Rebuild to DISABLE (after this entire process is all done we need to make sure to set this back to enable)
esc out of the controller BIOS.
Power off the server.
Put the drives in the same slots they were in before with the server OFF.
Only put in the original drives - do not put in "new" drives
Boot up the server - goto Ctrl+M
Goto configure >view add configuration
Hopefully you will get an NVRAM mismatch error
If you do you want to select take the configuration from the DRIVES
Let me know what you see.