Automigration Setup - HP 12000 Design Manual

firesafe, the user must move the virtual cartridges out of the firesafe first. See
Automigration Media" (page
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 1 10%). 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 — when this option is checked, upon mailslot eject, the copy will
be 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.
85).
Automigration Policy
"Restoring from
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Implementation 81