Installation manual

Shadowing a Volume
Configuring a Shadow-Copy Rule (Source Switch)
15-12 CLI Storage-Management Guide
Applying a Schedule
A shadow-copy rule requires a schedule. Use the gbl schedule command to create
one; refer back to “Creating a Schedule” on page 12-27 for details.
To apply a schedule, go to gbl-ns-vol-shdwcp mode and use the
schedule command:
schedule name
where name (1-64 characters) identifies the schedule. Use the
show policy
schedule
command to list all schedules.
For example, the following command sequence applies an hourly schedule to the
shadow-copy rule, “DRrule:”
bstnA6k(gbl)# namespace wwmed
bstnA6k(gbl-ns[wwmed])# volume /acct
bstnA6k(gbl-ns-vol[wwmed~/acct])# shadow-copy-rule DRrule
bstnA6k(gbl-ns-vol-shdwcp[wwmed~/acct~DRrule])# schedule hourly
bstnA6k(gbl-ns-vol-shdwcp[wwmed~/acct~DRrule])# ...
Configuring Progress Reports
The next step in configuring a shadow-copy rule, optional but strongly recommended,
is to arrange for progress reports. Progress reports show all the milestones and results
of a shadow-copy execution. The policy engine generates a report each time the
schedule fires and invokes the rule.
You cannot use a schedule with a fixed duration (see “Setting the Duration (optional)” on
page 12-28). If a duration was too short for the shadow copy to finish, the shadow copy
would fail.