Volume snapshot rollback abort, Breaking a mirror – SANRAD I3.1.1205 User Manual

Page 168

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SANRAD V-Switch CLI User Manual

volume snapshot rollback abort

This command aborts snapshot rollback.

volume snapshot rollback abort

S

WITCH

P

ARAMETER

D

EFINITION

S

TATUS

E

XAMPLE

-snap

SNAPSHOT

SNAPSHOT SOURCE
VOLUME

MANDATORY

Mirro2

Breaking a Mirror

If you are working in

a V-Switch cluster,

the child must be

removed on both V-

Switches.

You can remove one of multiple children from a mirror or break a two-
child mirrored volume to enable one or both of the children to be used
independently. The removed child is a fully functional volume and can be
exposed to any host. In particular, the removed child can be used for
testing, online server-free backup or online data migration.

If you break a mirrored volume that is attached to a LUN, the remaining
volume retains the attached LUN. Write operations to the source volume can
continue while the mirror is being broken or a child removed but the removed
child’s data cannot be guaranteed to mirror the source volume. Therefore, all
write operations should be suspended appropriately before breaking a mirror.

A mirror cannot be broken or a child removed if one of the volumes needs to be
synchronized or it is in the process of synchronizing or copying.

In Figure 8-10 a child is removed from a mirrored volume with three children.
If the mirrored volume is exposed, it remains functional as a mirrored volume
and all read-write operations are executed.

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