HP Storage Mirroring V5.1 Software - Manual (Page 183)

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Setup
The Setup tab contains various setup options.

Log Statistics Automatically—If enabled, Storage Mirroring statistics logging will start
automatically when Storage Mirroring is started.

Enable Task Command Processing—Task command processing is a Storage Mirroring feature
that allows you to insert and run tasks at various points during the replication of data. Because
the tasks are user-defined, you can achieve a wide variety of goals with this feature. For example,
you might insert a task to create a snapshot or run a backup on the target after a certain segment
of data from the source has been applied on the target. This allows you to coordinate a
point-in-time backup with real-time replication.
Task command processing can be enabled from the Management Console, but it can only be
initiated through the scripting lanugage. See the Scripting Guide for more information.
If you disable this option on a source server, you can still submit tasks to be processed on a
target, although task command processing must be enabled on the target.

Advertise service with Active Directory — If enabled, the Storage Mirroring service registers
with Windows Active Directory when the Storage Mirroring service is started.

Automatically Reconnect During Source Initialization—If enabled, Storage Mirroring will
automatically reconnect any connections that it automatically disconnected.

Perform Remirror After Auto-reconnect—If enabled, Storage Mirroring will automatically
perform a remirror after an auto-reconnect has occurred. You will also need to specify the type
of mirror that you wish to perform after an auto-reconnect.

File Differences with Checksum—Any file that is different on the source and target based
on date, time, and/or size is flagged as different. The mirror then performs a checksum
comparison on the flagged files and only sends those blocks that are different.

File Differences with no Checksum—Any file that is different on the source and target
based on date, time, and/or size is sent to the target.

Send data only if Source is newer than Target—Only those files that are newer on the
source are sent to the target.