Specifications

Force Mirror Online
Force Mirror Online
Force Mirror Online should be used only in the event that both servers have become inoperable and
the primary server cannot bring the resource in service after rebooting. Selecting Force Mirror
Online removes the data_corrupt flag and brings the DataKeeper resource in service. For more
information, see Primary server cannot bring the resource ISP in the Troubleshooting section.
Note: Mirror_settings should be run on the target system(s) (or on all systems, if you want the
settings to take effect regardless of which system becomes the mirror source). The mirror must be
paused and restarted before any settings changes will take effect.
Pause and Resume
Pause Mirror
Resume Mirror
You may pause a mirror to temporarily stop all writes from being replicated to the target disk. For
example, you might pause the mirror to take a snapshot of the target disk or to increase I/O
performance on the source system during peak traffic times.
When the mirror is paused, it will be mounted for read (or read/write with kernel 2.6.19 or higher)
access at the normal filesystem mount point on the target system. Any data written to the target while
the mirror is paused will be overwritten when the mirror is resumed.
Rewind and Recover Data
The rewind feature allows the data on the target disk to be rewound back to any previous disk write.
The steps involved are:
296Administration