We have a Sun X4500 ‘Thumper’ that recently had a failed drive. Our zpools are all raidz2 with 4 spares. We were getting errors on the disk c1t5d0, although the drive hadn’t failed completely.
As we had not yet tested replacing a ‘live’ drive the disk was pulled from the system before running any commands to remove it from the pool.
You can run the following command to see the status of your pools –
Our pool was showing as degraded and that a spare drive had been brought online –
c0t5d0 ONLINE 0 0 0<br>
c0t6d0 ONLINE 0 0 0<br>
spare DEGRADED 0 0 0<br>
c1t5d0 UNAVAIL 0 0 0 cannot open<br>
c1t0d0 ONLINE 0 0 0<br>
To remove the failed disk from the pool we ran the command –
Now our pool showed as being online and all that was left to do was to set up the replaced drive to be a new spare.
First we have to configure it in Solaris. To check that the system is seeing the drive run –
and there was our new, unconfigured drive –
To configure the disk in Solaris run –
and then just add it to the pool as a spare –