Setting Up Auto Migration Plan Parameters - HP StorageWorks P9000 - Disk Arrays User Manual

NOTE: If you delete a manual migration plan that is being processed, the data in the target
volume cannot be guaranteed. A migration plan that was created by another program cannot be
deleted through Auto LUN.

Setting up auto migration plan parameters

To enable Auto LUN to create and execute auto migration plans, a sampling term, a migration
time, and other parameters must be set up in the Auto Plan window.
Procedure 3 To set up auto migration plan parameters:
1. Click Actions Other Function Auto LUN to open the Auto LUN window.
2. Click
3. In the Auto LUN window, click Auto LUN. A different window appears.
4. Click the Auto Plan tab to display the
5. Set the Auto Refresh option to Enable or Disable. If Auto Refresh is enabled, the progress of
migration plans are updated in real time, and if a new plan is created, the new plan will
automatically be added to the list. If Auto Refresh is disabled, information in the list will not
be updated automatically.
6. In the Sampling Term section, select one of the following Date options:
None: migration plans will not be created
Every day: migration plans are created daily
Once every X days: migration plans are created every X days. An integer value for 'X'
is specified in the drop-down list
Once a week: migration plans are created once a week on the day specified in the
drop-down list
Once a month: migration plans are created once a month on the day specified in the
drop-down list
7. In the Sampling Term section, specify values in the From and To fields to set the time range
for which to collect disk usage rate statistics.
8. In the Number of Sampling Points section, select the All sampling points option to analyze all
average usage rates collected during the sampling term. To analyze only the X highest average
usage rates in the sampling term, select the X highest sampling points and then set the value
of X from the drop-down list.
9. In the Migration Time section, use the drop-down lists to specify the time to start auto migration
operations. The Migration Time must be at least 60 minutes later than the specified Sampling
Term end time and 15 minutes plus the Max. Migration duration value earlier than the Sampling
Term start time. The Max. Migration duration value can range from 10 to 120 minutes. It is
recommended that you specify a time when disk usage rates are low because volume migrations
might impose heavy workloads on hard disk drives.
10. Optionally, edit the following values in the Auto Migration Conditions section:
Max. migration duration: the time limit for auto migrations. If the time limit is reached,
Auto LUN cancels all incomplete operations.
Max. disk utilization: the global disk usage limit for parity groups. If a parity group's disk
usage rate exceeds this limit, all auto migration plans involving this parity group are
cancelled.
Max. number of vols for migration: the maximum number of volumes that can be migrated
through auto migration at the same time.
1 1. If not already enabled, set the Auto Migration function to Enable.
12. Click Set to apply the settings to the storage system.
24 Auto LUN operations
to change to Modify mode.
"Auto Plan window" (page 52).