StorageTek 6 manual Activities Report, of all, Ave. time, Ave. pass-thrus

Activities Report

All ‘‘-same LSM’’ subcategories report moves which have the source and destination of the move in the same LSM. All ‘‘-diff LSM’’ subcategories report moves which have the source and destination of the move in different LSMs.

% of all

is the percent of move operations represented by the category or subcategory found in SMF input matching the duration criteria.

This percentage is calculated as the number of operations in the category or subcategory divided by the number of operations in the major category.

The value is reported as a percent and can range from 0 to 100 percent.

Ave. time

is the mean elapsed time from the issuance of the move request by the HSC until the HSC receives an acknowledgment that the cartridge has been moved.

It is calculated as the sum of the elapsed time for operations in the category divided by the number of operations in the category. The elapsed time is an HSC determined response time for a move request.

The value is reported as seconds and can range from 0.0 to 9,999.9 seconds. A value of ‘‘N/A’’ indicates no SMF records were found for the move category or no library hardware existed which matched the requested duration criteria.

For dismounts, this includes time for the transport to rewind and unload the cartridge. For mounts, this includes time the transport takes to load and spin the tape to load point. For mounts and dismounts, this excludes HSC queueing incurred when the HSC delays sending a mount request to the LMU until a previous tape has been rewound, unloaded, and put away.

Temporary enters are counted in the enter category. Ejects of temporarily entered volumes are counted in the eject category. For temporary enter/ejects, transport load and unload times are included in the elapsed time.

For enters and ejects, this only includes time it takes to move a cartridge from the CAP to a cell or from a cell to the CAP. It does NOT include time it takes for an operator to service the CAP or for the LSM to scan the CAP. It also excludes HSC queueing done to manage the CAP activity.

Ave. pass-thrus

is the mean number of pass-thrus for a move category.

This is calculated as the sum of the number of pass-thrus divided by the number of operations in the category.

The value is reported as the mean number of pass-thrus and can range from 0.0 to 99.9 pass-thrus.

This is only reported for the major and the ‘‘-diff LSM’’ move subcategories. A value of ‘‘N/A’’ is reported for the ‘‘-same LSM’’ subcategories.

192VM/HSC 6.0 System Programmer’s Guide

1st ed., 6/30/04 - 312579601