adamgoldberg
Explorer
- Joined
- Dec 12, 2015
- Messages
- 60
I have a SuperMicro machine with two Sandisk Ultrafit 32g USB drives as boot devices, mirrored. After installing the latest update, the machine too a very long time to reboot and sent me an email that the boot volume state is degraded:
If I look at System -> Boot -> Status, I see (first & last columns only):
One of the mirrored boot drives has failed, the one that's still working is at da0p2, and I need to replace the other one.
In an abundance of caution, I've downloaded the config (System->General->Save Config), just in case it all goes to hell. (Is that sufficient to recover from "all goes to hell"?)
Questions:
Code:
The boot volume state is DEGRADED: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state.
If I look at System -> Boot -> Status, I see (first & last columns only):
Code:
freenas-boot ... DEGRADED -- mirror-0 ... DEGRADED ---- da0p2 .... ONLINE 10046630494804285423 .... UNAVAIL
One of the mirrored boot drives has failed, the one that's still working is at da0p2, and I need to replace the other one.
In an abundance of caution, I've downloaded the config (System->General->Save Config), just in case it all goes to hell. (Is that sufficient to recover from "all goes to hell"?)
Questions:
- How can I tell which one is the failed one? Shutdown, take one out, and see what happens? Or something else?
- Should I order identical replacement(s) (they're still available)?
- How do I replace the failed one? Do I put a new one in (for a total of 2 good, 1 bad) and then do something? Or do I remove the failed one, reboot, and tell FreeNAS to replace the now missing one with the new one? Something else?
- Is the process here in the documentation somewhere? I can't find it.