HP StorageWorks SAN Virtualization Services Platform Manager user guide (AG781-96017, March 2009)

DescriptionProperty
A configurable value that determines when an alert is triggered for cases in which
the number of mirror PiTs on the group source element exceeds the expected limits.
The number of mirror PiTs on the group is expected to go beyond the Required
Source PiTs limit since only after a new PiT is created, and the Required Source
PiTs limit is reached, a mirror triggers a deletion for the oldest mirror PiT which by
itself is a process that takes time.
The source PiT alert value is the number of PiTs above the number specified in the
Required Source PiTs field to allow before triggering an alert. If the number of
mirror PiTs on the group source element exceeds the sum of Required Source PiTs
and Source pits alert, an alert event is sent.
The alert is only sent if VSM Services alerts are enabled. To enable VSM services
alerts, select Options > General from the Tools menu, select the Configuration tab,
and check Turn on VSM services alerts.
Source PiT Alert
The policy for copying user PiTs to destination virtual disks. Possible values:
• Copy newest PiTs—When the time comes to start a copy of a new PiT to a task
destination, the mirror service copies only the newest user PiT to the destination.
This means that some user PiTs may be skipped.
• Copy all PiTs—A mirror copies all user PiTs to the destination, even if there is
more than one waiting to be copied at a time when conditions become suitable
for the mirror to copy.
Copy User PiT Policy
The time at which the async mirror group was created.Creation Time
The user who created the async mirror group.Created By
The time at which the async mirror group was last modified.Modification Time
The user who last modified the async mirror group.Modified By
Viewing asynchronous mirror group information
You can display detailed information related to each async mirror group in the tabs area below the
async mirror groups list.
To view information related to an asynchronous mirror group:
In the async mirror groups list, select a group. The following tabs are displayed:
• Properties—Displays the properties of the group described in Table 108 on page 261.
• Async Mirror task—Displays the tasks running on the group.
• Source Domain’s PiTs—Displays any of the group’s PiTs that are on the local domain.
• Security—Shows which permissions are assigned to users and user groups for managing the
group.
• Source & Destination PiTs—Shows which PiTs are currently available on the source domain and
on every task’s destination. The PiTs are identified by name and creation time.
• Disabled Operations—Shows which operations you cannot currently perform on the group, and
the reason for each.
These tabs are described in the following sections.
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