Quantum SDLC 2.7, Reference Manual

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Scalar DLC Reference Guide 27
Operating the Tape Library Doors
There are times when you must manipulate the tape library doors while the Scalar DLC is in operation. The
Scalar DLC handles this as much as possible, but some operations will fail when the doors are opened. This
is especially true if operations are executed by clients who use backup applications and do not monitor the
resource before launching the command.
Front Door
When the front door is in open state, the Scalar DLC resources can be described as follows:
When the front door of Robot1 on the dual-aisle system is opened, the Robot2 may still perform operations
that do not use resources managed by Robot1 (for example,
mount from <Robot2 storage> to <Robot2
drive> shall pass). If the customer-requested resource is in Robot1 control, the Scalar DLC marks the
resource as ‘not accessible’ and the operation shall fail.
After the front door is closed the robot must be manually turned online from the operator panel. Then the
robot starts the complete
inventory operation to check whether the new elements are installed, and if so,
map them correctly.
I/E Station Door
When the door of insert/eject station is opened the Scalar DLC marks the elements of this station as ‘not
accessible’. Any operation that involves the non-accessible resource (for example,
move to the non-
accessible mailbox slot) will fail. The other operations (for example, dismount , clean , move to the mailbox
slot of the other insert/eject station) shall pass.
Closing the insert/eject door starts the part inventory (partial inventory) of the appropriate insert/eject
station to check whether the new cartridges were put in the library or the cartridges ejected to the mailbox
were removed.
Managing the Database
The separate Database Tool (refer to Database Tool on page 222) is used for every operation that is
allowed with the Scalar DLC database. The tool is launched from Start > Programs > ADIC Distributed
Library Controller > Scalar DLC DB Tool (or right-click on Scalar DLC tray icon and then Tools > Scalar
DLC DB Tool ).
Element State, single-aisle library State, dual-aisle library
Robot Offline Offline
Physical library Offline Online
a
a. That is, online if the second front door is closed and the second robot is online.
Partition, drive, storage, mailbox Offline Online / offline
b
b. Depends on the state of the robot where the partition is physically located on, whether it is offline or online.
Logical library Offline Online / offline
c
c. Depends on the partitions the library contain, whether all of them are offline or some are online.
WARNING
BE VERY CAREFUL WHEN OPENING THE FRONT DOOR. THE AISLE
MECHANICS WILL GO OFFLINE WHEN THE DOOR IS OPENED BUT IT TAKES
TIME.