The remote power control, a 3494 feature for AS/400, supports both local and remote power controls. When the library is in local power mode, an operator can activate the power-on and the power-off sequences.

When in remote power mode, each host, through its AS/400 interface, can request that the power-on or power-off sequence be initiated. Any host requesting a power-on sequence will cause the 3494 to power on unless the library is already powered on. Only the last host requesting the library to power off will initiate a power off-sequence.

Operator Involvement

During normal automated operation, no operator attendance is required except to add or to remove cartridges.

Operator assistance is required if an error or exception condition occurs from which the library cannot recover on its own. Depending on the type of error or exception condition experienced, some or all of the library operations are suspended until the problem is corrected. If an error occurs that prevents the movement of cartridges, the library manager suspends performing requests that require cartridge accessor movement. The operator can use the library manager or the remote library manager console (if the optional Remote Library Manager Console feature is installed) to identify the cause of the error. If the operator can correct the error, the library may be placed in Pause mode, and the front doors may be opened to provide operator access. After the problem is resolved, the library may be returned to Auto mode.

If the problem cannot be resolved by the operator, the operator may start Manual mode operations in the library. When in Manual mode, the library manager instructs the operator to perform manual mount and demount operations until the problem is resolved by a service representative. After the problem is resolved, the operator can return the library to Auto mode.

Note: When the high availability model is installed, control will automatically switch to the `hot standby' component and the failed component will be marked unavailable. Concurrent maintenance can be performed to repair the failing unit. Operator involvement is needed only when a second failure occurs before the ®rst failure is repaired.

System Administrator Involvement

Normal daily operations of the library do not require any system administrator involvement. System administrator involvement may be required if an error condition occurs that cannot be resolved by the operator. A system administrator can obtain operational and performance information from the library manager or the remote library manager console (if the optional Remote Library Manager Console feature is installed) at any time.

The system administrator may also use the library manager or remote library manager console to search for cartridges in the library that have problems with their external labels, cartridges that have been misplaced or have other problems that need to be corrected.

Note: The tasks performed by a system administrator are typically password-protected to prevent unauthorized personnel from inadvertently or

46Magstar 3494 Tape Library Operator Guide

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IBM Magstar 3494 manual Operator Involvement, System Administrator Involvement