Balancer

The balancer is used to redistribute data in case a disk or set of disks (for example, new node) were added to or removed from a cluster. By default it is off. In case of changes in cluster configuration it has to be turned on for redistribution of data to occur. For details, see Rebalancing the cluster.

To display the status of the balancer:

# storpool balancer status
balancer waiting, auto off

To discard the re-balancing operation:

# storpool balancer stop
OK

To actually commit the changes and start the relocations of the proposed changes:

# storpool balancer commit
OK

After the commit all changes will be only visible with storpool relocator disks, and many volumes and snapshots will have the M flag in the output of storpool volume status until all relocations are completed. The progress could be followed with storpool task list (see Tasks).