HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

• “Migrating data to another management station” on page 166

Automatically purging data

XP Performance Advisor automatically purges performance data of XP arrays, if either of the following

conditions are met:

• The Auto Grow functionality is enabled but sufficient free disk space is not available.

• The Auto Grow functionality is disabled and the database grows to 70% of the allocated database

size.

• The database has grown to 300 GB that is the maximum database size that can be allocated.

For the above mentioned conditions, the following prediction on when auto purge start is also displayed

in the Purge section: Given current data storage rates, in less than X hours,

auto-purging begin.

The following message is logged on the Event Log screen when auto purging is activated: Activating

Purge Mode.

When auto purge is in progress, you can see the following message displayed in the DB Configuration

section under the DB Configuration/Purge tab: Given current data storage rates, the

estimate is less than X hours, auto purging may have already begun.

The following message is also displayed on the Event Log screen: Purge or migration is in

progress, please retry after some time.

After auto purging completes, the following message is logged in the Even log file: Auto Purge

completed successfully. Deleted X % of DB.

IMPORTANT:

• The data that you purge is independent of the XP arrays to which the data belongs.

• When auto purging is in progress and you increase the database size manually, auto purging

process stops. The following message is logged on the Event log screen:

Autopurging interrupted due to DB size change.

• Auto purging procedure also defragments the allocated database space, so that the free space

is released back to the database.