# VTS TS7700-series Cache Partition Container

This attribute group provides basic information about a cache partition in a TS7700 tape virtualization system. All attributes in this table are derived from the "HSM - Cache - Partition Container" record of the "Hnode HSM Historical Record."

Average Cache Hit Mount Time: Average time, in milliseconds, taken to complete Cache Hit mounts during the interval. Mount time is accrued from the time the mount request is accepted by the system (PLF received, DE returned) until the x20 message is received from the Library Manager. The mount time is averaged into the interval time when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Average Cache Miss Mount Time: Average time, in milliseconds, taken to complete Cache Miss mounts during the interval. Mount time is accrued from the time the mount request is accepted by the system (PLF received, DE returned) until the x20 message is received from the Library Manager. The mount time is averaged into the interval time when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Average Fast Ready Mount Time: Average time, in milliseconds, taken to complete Fast-Ready mounts during the interval. Mount time is accrued from the time the mount request is accepted by the system (PLF received, DE returned) until the x20 message is received from the Library Manager. The mount time is averaged into the interval time when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Cache Hit Mounts: Number of mount requests completed that the data was resident in the Tape Volume Cache (TVC) during this interval. A mount is accredited to the interval when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Cache Miss Mounts: Number of mount requests completed that required recall from a stacked volume during this interval. A mount is accredited to the interval when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Cluster ID: Hexadecimal value indicating the cluster ID. Values are 0 to 7.

Fast Ready Mounts: Number of mount requests completed using the Fast Ready method during this interval. A mount is accredited to the interval when the x20 message is received from the Library Manager. This value is reset to 0 at the beginning of the interval.

Grid Library Sequence Number: Library Sequence Number of the Grid (Composite) library.

Machine Model: Machine model of the node. Initially this field is set to "V06".

Machine Serial Number: Serial number of the node. This field is left justified and padded with blanks. The format is XX-YYYYY where XX is the plant of manufacture and the YYYYY is the sequence number of the node's machine. The dash character (-) is fixed. It should be noted that there can only be one machine per-cluster.

Machine Type: Machine type of the node. Initially this field is set to "3957".

Managed System: The SMS name of this system.

Node ID: A hexidecimal field that indicates the ID of the node.

Partition Container Number: An integer value 0-7 that indicates which cache partition you are viewing.

Partition Size: Amount of cache assigned to this partition. The value is reported in increments of 1 GB.

Timestamp: Time table row was created in CT timestamp format.

VE Code Level: Code level of the TS7700 Virtualization Engine™ (VE). The VE code level is expressed as `Version.Release.Modification.Fix` in a decimal form.