Migration history messages, Copy threshold option, Effects of auto lun on other program products – HP XP P9000 Auto LUN Software User Manual

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Migration History messages

The following table contains the messages that appear in Migration History logs.

Table 15 Migration History Log Messages

Description

Message

The migration operation started.

Migration Started

The migration operation completed successfully.

Migration Completed

The migration operation was canceled by the user.

Migration Canceled by User

The migration operation failed.

Migration Failed

The migration operation was canceled by Auto LUN (e.g., volume
usage rate exceeded specified maximum).

Migration Canceled by Controller

Because each program product started processing, the migration
operation was canceled by Auto LUN.

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.

Migration History messages

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