IBM TS3100 Setup, Operator, And Service Manual page 129

- 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 is 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
loads the first cartridge (cartridge that is 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 starts with that
cartridge unless the host issues a rewind and unload command to the drive. In that case, the
next cartridge in sequence is 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 with the Move Cartridges option, after the host issues a rewind/unload
command, the next cartridge loaded is 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 immediately starts 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 is
NOT loaded. To restart sequential mode, use the same Control menu command to load a
cartridge. The loading sequence resumes from that numeric slot in the cartridge inventory.
v Active Slots - the number of active slots in each logical library.
Note: Slots might be reserved so that they are invisible to the host. It might 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 might 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 might 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 is imported into this library under its control.
Note: The universal cleaning cartridge has a bar code CLNUxxLx. This cleaning cartridge is used to
clean all LTO generation tape drives.
For Auto Clean to function, the following criteria must be met:
– On 4U libraries with library firmware of 1.95 or lower that still contain a Dedicated Cleaning Slot
(DCS), or 4U libraries with library firmware higher than 1.95 that chose to retain the DCS in their
library, a CLN cartridge must be present in that slot.
– On libraries that don't have a DCS, a storage slot must be reserved (RSVD) by reducing the active
slot count by one.
– A cleaning cartridge (CLNxxxLx) must be placed or moved to the reserved slot.
– Auto Clean must be enabled.
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Operations