26 Configuration
Operating the Tape Library Doors
It is possible to stand up right before the tape library device and manipulate its doors when the Scalar DLC
is in work. Moreover, it is required sometimes.
The Scalar DLC will reflect as much as it could, but some operations (especially executed by the clients who
use backup applications and do not monitor the resource before launching the command) are to be failed
when the doors are opened.
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 partinventory (partial inventory) of the appropriate insert/eject
station to check whether the new cartridges were put in the library or the cartrigdes ejected to the mailbox
were removed.
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.
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