Robotic process example
Each drive in a tape library DLT (TLD) robot can be attached to a different host, and a tldd process runs on each host. However, only one host controls the robotics, and the tldcd robotic control process runs on that host only. To mount a tape, the tldd process on the host to which the drive is attached sends control information to the tldcd process on the robotic control host.
The following figure shows the processes and where they run for a TLD robot.
The following describes this example:
Each host connects to one drive, and a tldd robotic process runs on each host.
The robotic control and therefore the robotic control process, tldcd, is on host A.
The NetBackup Device Manager services on host A and B start tldd. The tldd process on host A also starts tldcd. Requests to mount tapes from host B go to tldd on host B, which then sends the robotic command to tldcd on host A.
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