Dell PowerVault TL1000 - Manual (Page 52)

Configuring library settings
Logical library settings
To configure the library access mode settings for the logical library:
1.
Expand Configure Library, if necessary, and click Logical in the left navigation
pane of the Web User Interface.
2. Select the Library Mode.
v Random - In random mode, the library allows the server's (host's)
application software to select any data cartridge in any order.
v Sequential - 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. See “Location coordinates and element addresses”
on page 1-9.
– 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 starts 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 need not to be in contiguous
slots.
To stop sequential mode, use the Move Cartridge command to unload the
drive. This command 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.
v Number of active slots - Select the number of active slots you would like to
assign in your library. Selecting the number of active slots defines the
number of storage slots, number of cleaning/inactive slots, whether the I/O
Station is enabled/disabled, and whether auto cleaning is allowed. The first
digit configures the number of active storage positions (4, 6, 8, or 9). The
a29z0124
Figure 3-14. Logical library mode settings
3-14 Dell PowerVault TL1000 Tape Autoloader User's Guide