PowerEdge HDD/SCSI/RAID

Last reply by 03-19-2020 Solved
Start a Discussion
2 Bronze
2 Bronze
44229

Poweredge RAID 1 mirror degraded but drive is fine

Have a Poweredge 2650 with a Perc 3/di controller.   Our system drive is 2 - 33GB drives in a RAID 1 array.  This morning after rebooting the server, Openmanage is reporting a degraded virtual drive.  The physical disks show no problems but the "State" on one says Ready (with 0 GB used and 33GB available Raid space)  and the other says Online.  It's like one drive just dropped out of the Raid 1 array.  How can I add that drive back into the array?    Do I have to unmirror the degraded virtual disk then add that drive back?   I've tried reseating the drive but that didn't do anything.

Solution (1)

Accepted Solutions
Anonymous
Not applicable
2495

The PERC 3/DI is an Adaptec controller and can be very limited in it's ability to obtaining logs, and recovering any array. I would first suggest that you have a full backup. Then proceed with testing the hardware to ensure you are rebuilding a good drive. You can use the PE diagnostics inside the OS, or 32 bit diagnostics outside the OS.

PE

32 BIT

If the hardware checks out good, then I would proceed with making the Ready drive a hot spare and see if it will rebuild into the array. In some cases with older firmware the controller will not pick up on the hot spare and the array will stay degraded. In that case you may need to delete the array, recreate the array, initialize and restore from your backup.

Once all is back to normal I would suggest making sure the server firmware is up to date,

support.dell.com/.../driverslist.aspx

Keep us updated,

Thanks

View solution in original post

Replies (6)
Anonymous
Not applicable
2496

The PERC 3/DI is an Adaptec controller and can be very limited in it's ability to obtaining logs, and recovering any array. I would first suggest that you have a full backup. Then proceed with testing the hardware to ensure you are rebuilding a good drive. You can use the PE diagnostics inside the OS, or 32 bit diagnostics outside the OS.

PE

32 BIT

If the hardware checks out good, then I would proceed with making the Ready drive a hot spare and see if it will rebuild into the array. In some cases with older firmware the controller will not pick up on the hot spare and the array will stay degraded. In that case you may need to delete the array, recreate the array, initialize and restore from your backup.

Once all is back to normal I would suggest making sure the server firmware is up to date,

support.dell.com/.../driverslist.aspx

Keep us updated,

Thanks

2 Bronze
2 Bronze
2495

Everything looked good and adding as a hot spare worked fine.   Virtual disk is back in Ready state.  Thanks.

7 Plutonium
2495

As Daniel suggested, I would also recommend testing the drive before putting yourself through any more headaches.  If the drive is bad, there is no sense in trying to rebuild it.  If the drive passes the Online Diagnostics (or even more thorough 32-bit diagnostics), then assign it as a Hot Spare to begin a rebuild.

Once rebuilt, I would strongly recommend updating the BIOS, ESM/BMC, RAID, then HDD firmwares, as it was probably a firmware glitch (if not a bad drive) that caused it to go offline.

7 Plutonium
2495

Oops ... should have refreshed my screen :)

1425

help me please i got a similiar case, but both my disk says online and in good state, 

My virtual disk says degraded, the only option i have is to create the virtual disk again, will this make me loose al my data?? because  i have no back up since this degraded things makes any backup proces fail

1417

Hi,

 

Would you be able to let me know what model of server are you having there, and what RAID controller?

 

Where did you manage to check that your RAID array is degraded, and both disk are online?

 

What backup software are you using that is failing due to degraded array?

 


DELL-Joey C
Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
#IWork4Dell

Did I answer your query? Please click on ‘Accept as Solution’. ‘Kudo’ the posts you like!

Latest Solutions
Top Contributor