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24 HP StorageWorks 1000ux/1900ux/2300ux Optical Jukebox User’s Guide
Using mixed media
Mixed media refers to the option to backup to more than one drive type, such as
MO and UDO, within the same physical jukebox.
General considerations when using mixed media are as follows:
■ Some independent software vendor application packages do not support
mixed media. Consult your software provider to verify that your configuration
is supported.
■ The proper version of HP StorageWorks Library and Tape Tools (L&TT) is
required for diagnostic support. Please see the online quick specs of HP
L&TT for the most up to date information. They can be found at the following
web address.
http://www.hp.com/sup port/ltt compatibility
■ When loading media into a mixed media unit, the media will first be moved to
a media test station, where its drive compatibility can be determined, then it
will be moved to its final destination. This drive compatibility information is
reported over SCSI to the application software to identify which disks are
compatible with the installed drives.
■ In the TEST* control panel menu, an additional test called MEDIA TEST is
available that will move all of the disks in the unit (except those in drives) to
the media test station, then back to their original locations. This test can take
about 15 minutes in a fully loaded unit. This test can be used to establish the
drive compatibility of all of the disks in the unit if this information is thought
to be incorrect. This should only be necessary if disks have been moved
around by hand (during service, for example). During normal operation the
jukebox will automatically keep track of this information.
■ When a disk inventory occurs (by selecting the INIT ELEM STATUS front
panel command, or through a SCSI command) any disks that are found in the
unit that have an unknown type will be moved into the media test station, then
back to their original location to determine their drive compatibility. Again,
this should only occur if disks are inserted by hand (during service) rather
than through the mailslot. When firmware is downloaded into the jukebox
controller, an initial inventory will occur automatically, and all of the disks
will be checked for their drive compatibility type.