Automigration Setup - HP StorageWorks 12000 - Virtual Library System EVA Gateway Manual

are no longer present. Therefore, to restore data from virtual cartridges in the firesafe, the user
must move the virtual cartridges out of the firesafe first. See
• Start time – the time at which the echo copy job begins. HP recommends that copies are scheduled
within a different time window from other backup activities.
• Window size – the number of hours available during which the echo copy job can take place. If
the migration does not take place during this window, the job is maintained in the queue until the
next start time.
• Sizing factor – the percentage of space, compared to the actual size of a disk, allocated on the
virtual tape for the copy job. For example, if the sizing factor is set to 90% and the physical tape
is 100 GB, the allocated space for the virtual tape will be 90 GB.
The sizing factor is crucial to creating the right size virtual tapes. The sizing factor should be based
on the size of the physical tape or the tape type if possible. HP recommends against setting the
sizing factor too high (for example 110%). Although the virtual copy can be made, if the drive
compression is too low the data might not fit back onto the physical tape. The sizing factor applies
to all operations except Load for Restore, in which case the sizing factor is ignored and the virtual
copy is exactly the size of the physical cartridge. In general, the virtual cartridge is approximately
90% of the actual cartridge size. Base the size of the copy on the eventual maximum size of the
actual cartridge that is to be copied.
• Echo Copy on Mailslot Eject
started as soon as possible (depending on available drives), regardless of the start time and window
size specified in the automigration policy. When the copy is complete, the destination cartridge
will be ejected and the virtual copy will move to the firesafe. If this option is not checked, the
matching destination cartridge will not be ejected until the copy is complete, which will depend
on the start time and window size.

Automigration Setup

To setup automigration, the first step is to use the GUI to connect a destination library or libraries to
the VLS. Once connected, the destination library must be managed, or added as a destination for
automigration virtual cartridges. After managing the destination library, the user establishes the
automigration policy for each virtual library. See
The user then creates echo copy pools. Each echo copy pool defines the single source virtual library,
the single destination library, and the slot range to be used on the destination library. Echo copy
pools follow the automigration policy of the virtual library they pertain to.
Once echo copy pools have been created, the initial automigration setup is complete.
when this option is checked, upon mailslot eject, the copy will be
Automigration Policy
HP StorageWorks VLS and D2D Solutions Guide
Restoring from Automigration
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