I have a Dell Poweredge R710 with a Perc H700 Raid controller. It's in a RAID 6 configuration currently with 2 failed disks. It does boot to CentOS in it's currently degraded state.
I would like to replace the disks, but whenever I add a new one and run a rebuild it runs for a few minutes then puts the new disk offline. It does this for both slots on the controller and for two brand new disks (same model as existing).
I think the battery on the controller needs replacing, but I wouldn't think this would affect the ability to run a rebuild.
Any ideas on how to get a rebuild to complete?
Best Answer
You're most likely encountering read errors on one of the remaining online drives. If you have Dell's OpenManage Server Administrator installed, you can use it to export a controller log, which should contain details about any errors that occurred during the rebuild process.
Exporting a Controller Log in OpenManage Server Administrator:
If you don't have a GUI but do have OpenManage installed, you can also use this CLI syntax to export a controller log:
omconfig storage controller action=exportlog controller=id
where
id
is the controller ID number as reported by theomreport storage controller
command.The log file is exported to either
/var/log
or<install-directory>/sm
, and is namedlsi_<mmdd>.log
where<mmdd>
is the month and date.