Dell PowerVault TL4000 - Manual (Page 119)

- Autoload: Sequential mode with autoload mode ON loads the first
available cartridge (slot with the lowest numerical value that contains a
cartridge) automatically if the library powers ON with an empty drive.
- Loop: Sequential mode with loop mode ON loads the cartridge in the
lowest numerical slot after the cartridge in the highest numerical slot has
been filled and sent back to its home slot. This allows endless backup
operations without user interaction.
- Starting Sequential Mode
v Autoload Option:
– If the Autoload option is set to ON (Configure > Library Settings >
Autoload ), the accessor will load the first cartridge (cartridge located
in the slot with the lowest numeric value) found in the storage
inventory area into the drive upon power ON of the library. If the
library powers on with a cartridge already in the drive, sequential
mode will start with that cartridge unless the host issues a rewind and
unload command to the drive. In that case, the next cartridge in
sequence will be loaded into the drive.
– If the Autoload Option if OFF, sequential mode must be started by
selecting the Move Cartridges option (Control > Move Cartridges) to
load the first cartridge (or any cartridge) into the drive. Whatever
cartridge is loaded into the drive, that is where the sequence starts
from. For example, if a cartridge from the fifth lowest numeric storage
slot containing a cartridge is loaded using the Move Cartridges
option, after the host issues a rewind/unload command, the next
cartridge loaded will be the cartridge from the next higher numeric
slot. Cartridges need not be in contiguous slots.
v Loop Option:
If the Loop option is set to ON (Configure > Library Settings > > Loop),
when the last cartridge (cartridge in the highest numeric slot) is
unloaded and placed back into storage, the accessor will immediately
start over again loading the first cartridge into the drive.
- Stopping Sequential Mode: To stop sequential mode, use the Move
Cartridges option from the Control menu (Control > Move Cartridges) to
unload the drive. the next sequential cartridge will NOT be loaded. To
restart sequential mode, use the same Control menu command to load a
cartridge. The loading sequence will resume from that numeric slot in the
cartridge inventory.
v Active Slots - the number of active slots in each logical library.
Note: Slots can be reserved so that they are invisible to the host. It may be
necessary to set the number of Active Slots to match the number of slots
that are available to the ISV software. Reserved slots are created by
reducing the number of active slots.
v Auto Clean - Use this menu item to enable the Auto Clean function. All cleaning
cartridges must have "CLNxxxLx" as part of the bar code.
With Auto Clean disabled, the cleaning tape can be stored in any data slot if you
wish to manually clean the drives. This is not recommended.
With Auto Clean disabled, the cleaning tape can be stored in any data slot if it
was put there under Backup Application control. In other words, the Backup
Application is controlling the cleaning of the tape drives and the cleaning tape
would be imported into this library under its control.
Chapter 5. Operations 5-21