HP StorageWorks 2000fc, Справочное руководство

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Chapter 3 Managing Storage 127
Using the Scheduler
You can use the Scheduler feature to create tasks and define schedules at which the
system will automatically perform those tasks.
Actions you can perform on the Scheduler page are:
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Create tasks to take a snapshot, reset a snapshot, or copy a volume
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View task information
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Delete tasks
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Schedule tasks
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View schedule information
■
Delete schedules
Panels on this page have these icons:
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– Click to show the panel’s content.
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– Click to hide the panel’s content.
■
– Click to cancel creating a task or schedule.
While you are managing tasks and schedules, running tasks or use of other storage
system interfaces can cause displayed data to become outdated. The following
update notice and button are displayed in the message area so you can update the
page when you are ready:
Creating a Take Snapshot Task
You can create a task to take a snapshot of a master volume, if at least one master
volume exists. You can specify a prefix to identify snapshots taken by that task, and
the number of snapshots with that prefix to retain (known as the retention count).
When the task runs, the Scheduler compares the number of snapshots that exist with
the retention count:
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If the retention count has not been reached, the snapshot is taken.
■
If the retention count has been reached, the oldest snapshot with that prefix is
unmapped, reset, and renamed to the next name in the sequence.
To create a task to take a snapshot of a master volume:
1. Select Manage > Scheduler > Manage Scheduler.
2. In the Tasks panel click Add New Task.
The Create Task panel is displayed.