Database I/O Activity for OSAM Buffer Pools (IMS Systems) view (IDABOSMR)
The Database I/O Activity for OSAM Buffer Pools (IMS Systems) view (IDABOSMR) provides database I/O activity information for OSAM databases, summarized at the buffer pool level.
You can use the IDABOSMR view to analyze I/O information related to buffer pools. The view helps you recognize and solve N-way data sharing problems resulting from badly organized databases, I/O contention, buffer pool sizes and assignments, or buffer cross-invalidation.
IDABOSMR shows I/O totals, rates, and average times for all open OSAM databases.
You can hyperlink to the IDABOSMR view from the:
- OSAM Buffer Pools option in the IMS Fast Menu (EZIFASTR) and the DBCTL DBA Easy Menu (EZIDBA)
- OSAM Wrst Hit and Buf Steal fields in the IMS Dashboard view (IMSDASSR)
- OSAM Bufr Pool Hit Ratio field in the IDASDTLR view
- Worst OSAM Pool Hit Ratio field in the IDAGDTLR view
- OSAMPool HitRatio field in the IDAGSUMR and IDASSUMR views
COMMAND ===> SCROLL ===> PAGE
CURR WIN ===> 1 ALT WIN ===>
>W1 =IDABOSMR=========(ALL======*=======)15APR2007==12:36:15====MVIMS====D====4
OSAM Bufr Num Srch Hit OSAMCach OSAMCach AvgTime Databases Read Write
Pool ID Size Bufr Rate Ratio HitRatio Option In Pool With I/O Rate Rate
OSM4 4096 5 1.94 39.84 0.00 All 0.10 DB1H 16.90 0.00
(none) 1024 5 0.00 0.00 N/A NoCache 0.00 0.00
(none) 2048 5 0.00 0.00 N/A NoCache 0.00 0.00
(none) 8192 5 0.00 0.00 N/A NoCache 0.00 0.00
The following hyperlinks are provided on the view:
Hyperlink from | To access |
|---|---|
OSAM Pool ID | Database Activity Detail for an OSAM Buffer Pool (IMS Systems) view (IDABODTR), where you can see a detailed view of the selected buffer pool |
Databases with I/O | Database I/O Activity for Databases/Volumes (IMS Systems) view (IDAXSUMR), where you can see the statistics broken down by database volume and VSAM and where you can see more specifically where the I/O is occurring within a specific volume or VSAM component |
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