Migration History Messages; Copy Threshold Option; Effects Of Auto Lun On Other Program Products - HP XP P9500 User Manual

Migration History messages

The following table contains the messages that appear in Migration History logs.
Table 15 Migration History Log Messages
Message
Migration Started
Migration Completed
Migration Canceled by User
Migration Failed
Migration Canceled by Controller
Migration Canceled by Business Copy
Migration Canceled by Continuous Access
Migration Canceled by Controller
Migration Canceled by Continuous Access Journal
Migration Canceled by Compatible XRC
Migration Canceled by Concurrent Copy

Copy Threshold option

The Copy Threshold option can be configured to temporarily stop Auto LUN operations when
activity on the storage system becomes heavy. The use of this option is not recommended for hosts
that frequently update volumes which are likely to be migrated because of the increased possibility
of failure during migration.
For information about setting the Copy Threshold option, call HP Technical Support.
The Copy Threshold option also stops migration operations associated with the following products:
Business Copy
Business Copy Z
Compatible FlashCopy
Snapshot
NOTE: Copy operations that are stopped by the Copy Threshold option will resume once the
load on the storage system becomes light.

Effects of Auto LUN on other program products

When differential data is being copied, longer copying time can be expected for the following
program products:
Auto LUN
Business Copy
Business Copy Z
Compatible FlashCopy
The following table shows the amount of additional copy time expected for the affected program
products. The increase in copy time may be as much as doubled and depends on the number of
pairs set to the program product.
Description
The migration operation started.
The migration operation completed successfully.
The migration operation was canceled by the user.
The migration operation failed.
The migration operation was canceled by Auto LUN (e.g., volume
usage rate exceeded specified maximum).
Because each program product started processing, the migration
operation was canceled by Auto LUN.
Migration History messages 33