Dell PowerVault TL1000 - Manual (Page 78)

Configuring the library access mode
Select Configuration > Configure Library > Configure Library Mode to set the
logical library access mode.
Configure the library access mode with the following settings:
v Random Mode - In random mode, the library allows the server's (host's)
application software to select any data cartridge in any order.
v Sequential Mode - In sequential mode, the library's firmware predefines the
selection of the cartridges. After initialization, the firmware causes the library to
select the first available cartridge found (counting from the lowest Column/Tier
position through the highest cartridge position in your library) for loading into
the drive.
– Loop - Sequential mode with loop mode ON loads the cartridge in the lowest
Column/Tier cartridge position after the cartridge in the highest Column/Tier
cartridge position is filled with data and sent back to its home position. This
mode allows endless backup operations without user interaction.
– Autoload - Sequential mode with autoload mode ON loads the first available
cartridge (the lowest Column/Tier cartridge position that contains a cartridge)
automatically if the library powers ON, or resets, with an empty drive. If the
library powers ON with a cartridge already in the drive, sequential mode will
start from the home position of that cartridge, unless the host issues a rewind
and unload command to the drive, in which case the next cartridge in
sequence will be loaded into the drive.
To start sequential mode if autoload is OFF, use the Move Cartridge command to
load the first cartridge into the drive. The sequence starts from the home
position of that cartridge. Cartridges do not need to be in contiguous slots.
To stop sequential mode, use the Move Cartridge command to unload the drive.
This mode cancels sequential mode; the next sequential cartridge is NOT loaded.
To restart sequential mode, use the Move Cartridge command again to load a
cartridge; the loading sequence resumes from the home position of that
cartridge.
Configuration
Configure Library
Configure Library Mode
Set Random Mode
Set Sequential Mode
Configure Loop Mode
Enable Loop Mode
Disable Loop Mode
Configure Autoload Mode
Enable Autoload Mode
Disable Autoload Mode
Figure 4-19. Library access mode settings
4-10 Dell PowerVault TL1000 Tape Autoloader User's Guide