The storage cluster backing volumes in the monash-02 availability zone is currently undergoing a rolling refresh activity. This requires bringing new hosts into the cluster and removing old hosts, with a large portion of data being read and written, subsequently adding a background load to the underlying storage. The activity is expected to take 1-2 weeks.
No outage is expected, however there may be minor disruptions to client IO on monash-02 volumes, and instances that boot from volume. This may manifest as block IO timeouts when attempting to write or read instance disks.
If you experience any ongoing IO issues please report them to support.
This activity has been completed.