Automigration/Replication - HP StorageWorks 12000 - Virtual Library System EVA Gateway User Manual

5 Automigration/Replication

Instead of the preferred method of copying virtual media to physical media via the backup application,
another option is to perform transparent tape migration via the VLS device using automigration.
Automigration describes the feature in which the Virtual Library System acts as a tape copy engine
that transfers data from virtual cartridges on disk to a physical tape library connected to the VLS
device. The VLS automigration feature supports two different schemes:
• Echo copy automatically synchronizes the physical cartridges to matching virtual cartridges (with
the same barcodes) based on user-defined policies, and is totally transparent to the backup ap-
plication.
• Using smart copy, the automigration process is under the control of the backup application,
managed via the VLS SMI-S interface. This requires the backup application to support the HP smart
copy interface.
You can also copy virtual media using replication. Replication provides automigration from the source
VLS across the LAN/WAN to a remote virtual destination library. See
"Replication
This section describes automigration topics from overall automigration concepts to specific operations
you can perform on your system.
NOTE:
Throughout the automigration windows, a SAN library refers to a destination library that is connected
to the source library through the SAN and uses the automigration feature. A LAN/WAN library refers
to a remote destination library that is connected to the source through the LAN/WAN and uses the
replication feature.
NOTE:
When a list of slots is displayed, the message, "[#] items found, displaying 1 to 20." appears. If there
are more than 20 items found, scroll through them using the arrows pointing right and left at the far
right-hand side at the top of the list. Also, in some cases, only available slots or only slots containing
tapes appear in the list.
NOTE:
For each procedure described in this chapter, at least one means of access to the relevant screen or
menu is specified. However, links are often provided in the main window that can be used as a
shortcut to other windows or menus.
Concepts" on page 49.
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