# VTS Overview

The VTS Overview attributes provide an overview of the performance and configuration of a virtual tape server (VTS).

Average Virtual Mount Pend Time: The average amount of time in seconds that an MVS™ system waited for a virtual tape volume to be mounted on a virtual tape server.

Grid Library Sequence Number This five-character field contains the Library Sequence Number of the Grid (Composite) library.

Host Channel Activity GB: The total number of gigabytes (read + write), processed by the MVS host channels to the virtual tape volumes associated with the VTS.

Library Serial Number: The manufacturer's serial number for the VTS.

Library Type: The physical tape library type.

Managed System: The SMS name of this system.

Maximum Virtual Mount Pend Time: The maximum amount of time in seconds that an MVS system waited for a virtual tape volume on a virtual tape drive.

Model number: The manufacturer's model number for the VTS.

Physical Drives Available: The number of physical tape drives available on the VTS.

Scratch Volumes: The number of empty physical cartridges available for use by the virtual tape server.

Time Stamp: Displays the date and time this data was collected from the VTS.

Virtual Devices Online: The number of virtual tape drives on line for the VTS.

Virtual Disconnect Time: The time that I/O spends, free from the channel, searching for or requesting data. This time includes the time spent waiting for the VTS to service the virtual device.

Volume Recall Percent: The percentage of virtual mounts that result in a physical mount in the VTS.

VTS Library Type: Specifies the library type of this VTS. Valid library types are:

- STANDALONE VTS: A VTS that is not part of a peer-to-peer VTS environment.
- DISTRIBUTED VTS: A VTS that is part of a peer-to-peer VTS environment, but has not been designated for user interface commands.
- DISTRIBUTED USER INTERFACE VTS: A VTS that is part of a peer-to-peer VTS environment, and has been designated for user interface commands.
- COMPOSITE VTS: The logical view of a peer-to-peer VTS environment.
- NOT APPLICABLE: The library type attribute does not apply to TS7700 resources.

VTS Name: The name of this virtual tape server.