Initializing Mirrors

disk mirror starts disk mirroring. Do not use disk init to initialize a mirror device. A database device and its mirror constitute one logical device.

The disk mirror command adds the mirror name to the mirrorname column in the sysdevices table.

The disk mirror syntax is:

disk mirror 
     name = "device_name" , 
     mirror = "physicalname"
     [ , writes = { serial | noserial }]