Sun Microsystems StorageTek TIMBERWOLF 9740, Hardware Operator'S Manual

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Library Storage Module Components
1-4 Revision P 95693
Cartridge Access Port
The cartridge access port (CAP) is a storage area where you add cartridges to or remove
cartridges from an LSM. The CAP is located on the right front door.
LSMs are shipped with the type of CAP that allows you to place 14 cartridges, one at a
time, into the cells, or with a CAP that allows you to place a preloaded 10-cartridge
magazine into the CAP.
Note: The 10-cell cartridge magazine holds DLT cartridges.
Storage Cells
The LSM contains storage cells for 326 or 494 cartridges. The number of cells is
determined by whether the LSM has the standard left front door or the
expansion door.
Cartridges are stored in cell arrays that hold 6 or 14 cartridges. The cell arrays
are stacked in columns and the columns are arranged in a circle around the
robot assembly.
CAUTION:
Equipment problems : The cartridges must be inserted into the storage
cells with the customer label on top and the VOLSER facing the person
doing the inserting. If the cartridges are inserted into the cells upside
down, the LSM will stop during operation.
Cartridge Exchange Mechanism
The cartridge exchange mechanism (CEM) is an optional feature that allows a
robot to pass a cartridge from one LSM to another. For instance, when the host
software makes a mount request, and all the drives in the LSM are busy, with
this feature the robot can place the cartridge to the next LSM. The robot in that
LSM can then place the cartridge into one of its drives.
You can connect up to six LSMs together using the CEM. The LSMs are
numbered from left to right as you face the front of the LSMs. LSM0 is always at
the far left and all other LSMs are numbered consecutively and in ascending
order toward the right as you face them (to LSM5).
Note: The CEM does not support libraries using a SCSI interface.