Installation manual

Policy for Balancing Capacity
Pausing All Rules in a Volume
12-34 CLI Storage-Management Guide
Pausing on a Schedule
Some installations want to schedule “off hours” for file migrations; for example, you
may want to pause all migrations during regularly scheduled backup windows. You
can create a schedule (as described earlier) to define the off hours, then pause a
volume according to that schedule. This reduces resource contention between clients
and the policy engine. From gbl-ns-vol mode, use the
policy pause command to pause
the current volume’s rules on a schedule:
policy pause schedule
where schedule (1-64 characters) is the name of a schedule. Use
show policy
schedule
for a list of configured schedules (see “Showing All Schedules” on
page 12-30).
Each time the schedule fires, the volume stops all volume scans and migrations as
described above. The schedule must have a limited duration, or policy never resumes;
for instructions on setting a duration on a schedule, see “Setting the Duration
(optional)” on page 12-28.
For example, the following command sequence assigns the “backupWindow”
schedule to the “wwmed~/acct” volume:
bstnA6k(gbl)# namespace wwmed
bstnA6k(gbl-ns[wwmed])# volume /acct
bstnA6k(gbl-ns-vol[wwmed~/acct])# policy pause backupWindow
bstnA6k(gbl-ns-vol[wwmed~/acct])# ...
Removing the Policy-Pause Schedule
From gbl-ns-vol mode, you can use the no policy pause command to stop pausing
policy on a schedule:
no policy pause
This has no effect on a
policy pause command issued from priv-exec mode.
For example, the following command sequence stops all scheduled-policy pauses in
the “medarcv~/rcrds” volume:
bstnA6k(gbl)# namespace medarcv
bstnA6k(gbl-ns[medarcv])# volume /rcrds