HPE XP7 User Manual page 148

Available disk space is less than X GB. Auto deletion operation will begin once the available disk
space is less than Y GB. X signifies the disk space that needs to be considered for warning before auto
purge operation begins and Y signifies the minimum disk space.
Current database size has reached X % of Maximum configured database size. Auto deletion
operation will begin once the current database size has reached Y % of Maximum configured
database size. X is the warning threshold and Y is the threshold for auto purge.
These warning parameters can be configured in purgeparameters.properties file.
The purgeparameters.properties file enables you to configure the purge operations. This file is
located in the %XPPA HOME%\HPSS\pa\properties folder. You can configure the following parameters
in this file:
• Threshold_Value— This value is considered for auto purge operation. The default value is 70%. The
auto purge operation begins if the database size exceeds 70% of configured maximum database size.
However, allowed value is between 70 to 85. If a valid value is entered, then the new value is
considered for triggering auto purge operation. If an invalid value is entered, then default value of 70%
is considered as threshold value.
• Disk_Space_Value— The minimum default value is 3 GB. If the free disk space becomes less than
3GB, auto purge operation begins. However, a valid value between 3 to 5 can be entered. On entering
invalid value, default value of 3 GB is considered.
• Partition_Days—This value signifies the number of days of data a partition can contain in a table. The
default value is 3. Each component table in a database can be partitioned in terms of 3 days of data.
However, you can enter any value between 1 to 7. If an invalid value is entered, then the default value
of 3 is considered.
NOTE: If a lesser value is entered, then during the auto purge operation, the amount of space
reclaimed would be smaller and execution probability of purge operation increases. Similarly, if
an higher value is entered, during auto purge operation, the amount of space reclaimed is higher.
• Disk_Space_For_warning— This value in GB must be considered for warning before auto purge
operation begins. The default value is 10 GB. A warning message will be displayed in Purge/Archive
screen and in event log screen once the available disk space becomes lesser than 10GB. This serves
as a warning before the auto purge operation begins. This value must be less than the
Disk_Space_Value.
• Threshold_For_Warning—This value signifies the threshold in percentage. It is considered for warning
before auto purge operation begins. The default value is 60%. If the database size reaches 60% of
configured maximum database size, a warning message is displayed in Purge/Archive screen and in
Event log screen. This serves as a warning before the auto purge operation begins. This value must
always be lesser than the Threshold_Value.
NOTE: Auto purge deletes oldest records in the PA database and retains minimum data (minimum
of one partition of data) for each component in the array.
The following table describes the alert messages related to the Delete and Shrink operations that are
logged on the Event log screen:
148 Purge /Archive