KM5 zFS User Cache attributes

This attribute group is used to monitor the performance of the User File Cache. The User File Cache is a Least Recently Used (LRU) cache which holds only the most recently accessed blocks of files which are cached. The KM5 zFS User Cache attributes return two sets of statistics, direct and client.

Async Reads Number of asynchronous reads.

Cache Page Number of pages in cache.

Collection Interval The time between collections, in seconds.

Dataspace Count Number of dataspaces.

Error Waits Number of error waits.

Error Writes Number of error writes.

Flushes Number of cache flush calls.

Free Pages Number of free pages.

Fsync Waits Number of fsync waits.

Fsyncs Number of fsync calls.

Getattrs Number of getattr calls.

Local Segment Size Local segment size in kilobytes.

Managed System The z/OS operating system in your enterprise monitored by a Tivoli OMEGAMON XE on z/OS agent from which data is derived.

Page Size Size of a page in kilobytes.

Pages Per Dataspace Number of pages in a dataspace.

Read Fault Ratio Read fault ratio.

Read IOs Number of read I/Os.

Read Wait Ratio Read wait ratio.

Read Waits Number of read waits.

Reads Number of read calls.

Reads Faulted Number of read faults.

Reclaim Steals Number of reclaim steals.

Reclaim Waits Number of reclaim waits.

Reclaim Writes Number of reclaim writes.

Remote Segment Size Remote segment size in kilobytes.

Request Type The request type, direct or client.

Scheduled Deletes Number of scheduled deletes.

Scheduled Writes Number of scheduled writes.

Schedules Number of schedule calls.

Setattrs Number of setattr calls.

SMFID z/OS system producing this data.

System Name The system name reporting zFS statistics.

Timestamp Timestamp showing the date and time of day when data was recorded.

Unmaps Number of unmap calls.

VM Segtable Cachesize Table size of the VM segment.

Waits For Reclaim Number of waits for reclaim.

Write Fault Ratio Write fault ratio.

Write Wait Ratio Write wait ratio.

Write Waits Number of write waits.

Writes Number of write calls.

Writes Faults Number of write faults.

zFS Address Space Name of the address space running zFS.