From your description above, it sounds like you have (2) drives offline.
There are (2) methods:
- Forcing the drives online.
- Recreate the array (assuming all the required disks are OK - You should contact Technical Support for this method).
1. Please use promiseutil
HostName:~ user$ promiseutil
2. Use the phydrv command to check the physical drive status. Locate the disks that have a Dead or PFA operational status.
cliib> phydrv =============================================================================== PdId Model Type Capacity Location OpStatus ConfigStatus =============================================================================== 1 Hitachi HUA7 SATA HDD 2TB Encl1 Slot1 OK Array0 No.0 2 Hitachi HUA7 SATA HDD 2TB Encl1 Slot2 OK Array0 No.1 3 Hitachi HUA7 SATA HDD 2TB Encl1 Slot3 OK Array0 No.2 4 Hitachi HUA7 SATA HDD 2TB Encl1 Slot4 OK Array0 No.3 5 Hitachi HUA7 SATA HDD 2TB Encl1 Slot5 Dead Array0 No.4 6 Hitachi HUA7 SATA HDD 2TB Encl1 Slot4 PFA Array0 No.5
Can you post the output of your disks on this forum posting?
3. Check which disk is Dead and which disk is PFA.
4. You can use use the following command to force a drive online:
(x) = PdID (Physical Drive ID)
phydrv -a online -p(x)
4. If you see a drive with PFA, that states Predictive Failure Analysis (could be bad sectors/errors on the drive) and you should replace that drive with a new one (look at the compatability list to ensure you purchase a qualified/tested drive) - then rebuild the missing sequence.
5. To bring the Logical Drive back to Critical status, you need to have 5 drives online.
- With all 6 drives present, the Operational Status will be OK and not Critical.
- You can only lose one drive in a RAID5 LUN; hence, 5 of the drives need to be online in order to access the data since you created a RAID5 Logical Drive out of 6 disks.
6. If you do get your volume back online, I suggest running a filesystem via Disk Utility > First Aid just in case.
There are better tools out there:
- DiskWarrior (Need to purchase SW)
- TestDisk (Freeware)
This question was also answered in the following forum posting:
https://forum.promise.com/thread/r4-array-bad/
For further technical support, please contact support by opening a case @ https://support.promise.com
