DiskSuite enables you to rename a metadevice at any time, as long as the name being used is not in use by another metadevice, and as long as the metadevice itself is not in use.
Before renaming a metadevice, make sure that it is not currently in use. For a file system, make sure it is not mounted or being used as swap. Other applications using the raw device, such as a database, should have their own way of stopping access to the data.
You can rename any metadevice except a metadevice that is being used as a logging device. To perform the equivalent of renaming a metadevice used as a logging device, detach the logging device then reattach a new logging device of the desired name. Or detach the logging device, rename it, then reattach it to the trans metadevice.
You cannot rename a trans metadevice while it has an attached logging device. To rename a trans metadevice, first detach the logging device.
Hot spare pools cannot be renamed once they are created.
Metadevices within a diskset can be renamed. You cannot rename metadevices from one diskset to another.
The metarename command with the -x option can "switch" metadevices that have a parent-child relationship. Refer to "Metadevice Name Switching".