Product Components › Typical Mount Scenario

Typical Mount Scenario

A typical mount scenario using CA VM:Tape follows.

1. A user issues the MOUNT command.
2. CA VM:Tape uses the VMTAPE CONFIG file authorization records that you have set up to verify that the user is authorized for the options specified on the MOUNT command.
3. CA VM:Tape checks the TMC and configuration authorizations to ensure that the user is authorized for the specified access to the requested tape volume.
4. If CA VM:Tape determines that no tape drives of the correct type are available, the user’s request is placed in a queue until a tape drive becomes available.
5. CA VM:Tape attaches an available tape drive to itself.
6. CA VM:Tape sends a message to the tape operator requesting that the specified tape volume be mounted, with or without a write ring, as appropriate.
7. The tape operator mounts the tape on the tape drive.
8. If the mount request specified a non-labeled (NL), bypass label processing (BLP), or foreign tape (a tape not under CA VM:Tape control), CA VM:Tape prompts the operator to provide the external volume serial number. For write mounts, the volser must be entered twice to ensure that the correct volume serial number was entered.
9. After verifying that the mounted tape is the correct tape volume with the correct write ring status, CA VM:Tape updates the TMC and Audit files.
10. CA VM:Tape detaches the tape from itself and attaches it to the requesting user ID. The user now has control of the drive and can position the tape at the desired location.
11. CA VM:Tape sends mount completion messages to both the operator and the user indicating the volser and drive information.
12. When the user is finished with the drive, the user detaches it. When the drive is detached, CA VM:Tape can allocate it to another user.