DrewBryant1961
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Persistent Dell Perc 4e/di configuration of nvram and drive mismatch errors
I have a PE2800 with a Perc 4e/di RAID controller. System has 2 drives (RAID1) and I;m adding a second array with 3 more drives (RAID5). The RAID 5 set are new drives.
I'm getting above error when the system boots so I cleared the configuration and redefined the arrays via easy config. I initialized the logical volumes and reboot with no issues however any subsequent reboot recreates the same nvram/drive mismatch.
I hope this does not indicate a failing controller.
How do I resolve this?
Bembi
Have you checked, if the boot order in BIOS (Board) has changed? I noticed that some Boards have the issue, that they just select the new device as boot device.
ASKER
The 2 older drives are in slot 0 and 1 in the backplane however this issue occurs even if I remove the 3 new drives and create a single RAID 1 array. Reboot a second time and the mismatch errors reoccur.
If you check things in the perc configuration manager, it will show various combinations of drives in a failed state even new drives with no partitions on them.
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ASKER
A low level format of the drives resolved the issue.
You deleted the controller information on the drives during low level format. This solves the problem of course. Have a look if there is any option to save the configuration. Some controllers explicitely need this to write the configuration to the nvram.