We have a T620, running SBS2011.

It's due to be replaced literally within the next couple of weeks, but following a reboot, the data drives are not accessible.

Log messages include:

Unrecoverable medium error during recovery on PD 06(e0x20/s6) at 280: Controller 0 (PERC H710 Adapter)

Controller event log: Unexpected sense: PD 06(e0x20/s6) Path 5000cca041254641, CDB: 28 00 00 00 02 80 00 00 08 00, Sense: 3/11/14: Controller 0 (PERC H710 Adapter)

Checking OMSA we have 2 disks in a Raid 1 - all good.  4 disks in a Raid 5 - degraded.

Looking at the physical disks, one of them is showing 'foreign'.  Power is spun up.  Status is non-critical.

Is this likely to be what's causing the data drives to be inaccessible?

Can we do something to get the data back up?

Can we survive two or maybe 3 weeks like this, or do we need to replace the drive?

We back up to USB every night.

Anything else I need to know / do?!

Many thanks.