HVTVDA - Hydra Vnode Device Activity File
The Hydra Vnode Device Activity file contains statistics on concurrent virtual device mount activity and channel blocksize distribution. It is derived from the IBM Virtualization Engine TS7700 Series Statistical Data, type 20, Vnode Virtual Device Historical Record. This record is produced every 15 minutes. In addition, this file also contains a roll-up of the statistics from the HVTVAP file to the Vnode level.
micsrm140
The Hydra Vnode Device Activity file contains statistics on concurrent virtual device mount activity and channel blocksize distribution. It is derived from the IBM Virtualization Engine TS7700 Series Statistical Data, type 20, Vnode Virtual Device Historical Record. This record is produced every 15 minutes. In addition, this file also contains a roll-up of the statistics from the HVTVAP file to the Vnode level.
File Organization
The table below identifies data elements by which the file is sequenced and summarized in each timespan. N/A indicates that the file is not supported in a timespan. At the DETAIL level, data is sequenced but not summarized.
The timespans in which a file is supported are defined by each installation when CA MICS is installed. Therefore, this table has been generated as part of the installation process to accurately reflect the CA MICS system at your installation.
HVTVDA Sort Sequence and Data Granularity
+---------+-------------------------------------------------+ |Timespan | Level of Data Granularity | +---------+-------------------------------------------------+ | | | | DETAIL |SYSID HVTGRID HVTCLID HVTNODE YEAR | | |MONTH DAY HOUR ENDTS | | | | | DAYS |SYSID HVTGRID HVTCLID HVTNODE YEAR | | |MONTH DAY HOUR | | | | | WEEKS |SYSID HVTGRID HVTCLID HVTNODE YEAR | | |WEEK ZONE HOUR | | | | | MONTHS |SYSID HVTGRID HVTCLID HVTNODE YEAR | | |MONTH ZONE | | | | | YEARS | N/A | | | | +---------+-------------------------------------------------+ | TABLES | N/A | +---------+-------------------------------------------------+ Generation Date: Thu, Apr 1, 2010
This file was generated with ESSENTIAL=ALL option in effect. All data elements that are defined in the file are generated.
This file was generated with DERIVED=DEFault option in effect. The complex definition of the DERIVED option controls whether the data elements are kept on the file on auxiliary storage or not.
Data Elements List
The following table identifies data elements contained in this file.
GENERATION DATE: Thu, Nov 21, 2013 Note: Essential data elements are identified by an "E" under the Timespan asterisk (*) column. Time- Data Data Element Span * Element Description (LABEL) ------- -------- ---------------------------------------- Sequence/Summary Data Elements XD....E DAY - Day of Month XDW...E HOUR - Hour of Day XDWM..E HVTCLID - Cluster ID XDWM..E HVTGRID - Grid Composite ID XDWM..E HVTNODE - Node ID XD.M..E MONTH - Month of Year XDWM..E SYSID - System Identifier XDW...E WEEK - Week of Year XDWM..E YEAR - Year of Century XDWM..E ZONE - Time Zone Common Data Elements XD....E DAYNAME - Name of Day of Week XDWM..E DURATION - Recording Interval Time XDWM..E ENDTS - End Time Stamp XDWM..E HVTDLSN - Distributed Library Sequence Number XDWM..E HVTMODEL - Node Machine Model XDWM..E HVTMTYPE - Node Machine Type XD....E HVTRVN - Record Version Number XDWM..E HVTSN - Node Serial Number XDWM..E HVTVECD - VE Code Level XDWM..E INTERVLS - Number of Recording Intervals XD....E ORGSYSID - Originating System Identification XDWM..E STARTTS - Start Time Stamp Retained Data Elements XDWM..E VDAMXCT - Configured Max Channel Throughput XDWM..E VDAVDM - Virtual Device Model XDWM..E VDAVDT - Virtual Device Type Accumulated Data Elements XDWM..E VDACR - Data Read from Cache (uncomp MB) XDWM..E VDACRW - Total Data R/W Cache (uncomp MB) XDWM..E VDACW - Data Written to Cache (uncomp MB) XDWM..E VDALPR - Selective Port Resets XDWM..E VDANUMBS - Channel Blocks Written XDWM..E VDASAFCT - Sum of Times Cluster Ahead of FICON Chnl XDWM..E VDASBFCT - Sum of Times Cluster Behind FICON Chnl XDWM..E VDASDLY - Sum of Avg Throughput Delay Time XDWM..E VDASPCD - Sum of Host Throttle Delay Percentage XDWM..E VDASPR - System Port Resets XDWM..E VDASVCM - Sum of Avg Virtual Drives Concur Mounted XDWM..E VDASVDC - Sum of Virtual Drives Configured XDWM..E VDAVDR - Data Read from Cache (comp MB) XDWM..E VDAVDW - Data Written to Cache (comp MB) XDWM..E VDAVRW - Total Data R/W to Cache (comp MB) XDWM..E VDA00KB - 0 to 2K Channel Blocks Written XDWM..E VDA02KB - > 2K to 4K Channel Blocks Written XDWM..E VDA04KB - > 4K to 8K Channel Blocks Written XDWM..E VDA08KB - > 8K to 16K Channel Blocks Written XDWM..E VDA16KB - > 16K to 32K Channel Blocks Written XDWM..E VDA32KB - > 32K to 64K Channel Blocks Written XDWM..E VDA64KB - > 64K Channel Blocks Written Minimum Data Elements XDWM..E VDAMNCDS - Min Channel Data per Second (MB) XDWM..E VDAMNCR - Min Data Read from Cache (uncomp MB) XDWM..E VDAMNCRC - Min Compression Ratio Read from Cache XDWM..E VDAMNCW - Min Data Written to Cache (uncomp MB) XDWM..E VDAMNCWC - Min Compression Ratio Write to Cache XDWM..E VDAMNVCM - Min Virtual Drives Concur Mounted XDWM..E VDAMNVDR - Min Data Read from Cache (comp MB) XDWM..E VDAMNVDW - Min Data Written to Cache (comp MB) Maximum Data Elements XDWM..E VDAMXACT - Max Times Cluster Ahead of FICON Chnl XDWM..E VDAMXBCT - Max Times Cluster Behind FICON Chnl XDWM..E VDAMXCDS - Max Channel Data per Second (MB) XDWM..E VDAMXCR - Max Data Read from Cache (uncomp MB) XDWM..E VDAMXCRC - Max Compression Ratio Read from Cache XDWM..E VDAMXCW - Max Data Written to Cache (uncomp MB) XDWM..E VDAMXCWC - Max Compression Ratio Write to Cache XDWM..E VDAMXDLY - Max Throughput Delay Time XDWM..E VDAMXDTR - Max Data Rate (G-bits) XDWM..E VDAMXLPR - Max Selective Port Resets XDWM..E VDAMXPCD - Max Percent Delay Due to Host Throttle XDWM..E VDAMXSPR - Max System Port Resets XDWM..E VDAMXVCM - Max Virtual Drives Concur Mounted XDWM..E VDAMXVDR - Max Data Read from Cache (comp MB) XDWM..E VDAMXVDW - Max Data Written to Cache (comp MB) Derived Data Elements XDWM..E VDAAVACT - Avg Times Cluster Ahead of FICON Chnl XDWM..E VDAAVBCT - Avg Times Cluster Behind FICON Chnl XDWM..E VDAAVBSZ - Avg Estimated Channel Blocksize XDWM..E VDAAVCDS - Avg Channel Data per Second (MB) XDWM..E VDAAVCR - Avg Data Read from Cache (uncomp MB) XDWM..E VDAAVCRC - Avg Compression Ratio Read from Cache XDWM..E VDAAVCW - Avg Data Written to Cache (uncomp MB) XDWM..E VDAAVCWC - Avg Compression Ratio Write to Cache XDWM..E VDAAVDLY - Avg Throughput Delay Time XDWM..E VDAAVPCD - Avg Percent Delay Due to Host Throttle XDWM..E VDAAVVCM - Avg Virtual Drives Concur Mounted XDWM..E VDAAVVDC - Avg Virtual Drives Configured XDWM..E VDAAVVDR - Avg Data Read from Cache (comp MB) XDWM..E VDAAVVDW - Avg Data Written to Cache (comp MB) XDWM..E VDAPC00K - Pct 0 to 2K Channel Blocks Written XDWM..E VDAPC02K - Pct > 2K to 4K Channel Blocks Written XDWM..E VDAPC04K - Pct > 4K to 8K Channel Blocks Written XDWM..E VDAPC08K - Pct > 8K to 16K Channel Blocks Written XDWM..E VDAPC16K - Pct > 16K to 32K Channel Blocks Written XDWM..E VDAPC32K - Pct > 32K to 64K Channel Blocks Written XDWM..E VDAPC64K - Pct > 64K Channel Blocks Written XDWM..E VDAPSCR - Data Read from Cache (uncomp MB/s) XDWM..E VDAPSCW - Data Written to Cache (uncomp MB/s) XDWM..E VDAPSVDR - Data Read from Cache (comp MB/s) XDWM..E VDAPSVDW - Data Written to Cache (comp MB/s)
For a detailed description of individual data dictionary elements, see Hydra Vnode Device Activity (HVTVDA).
Usage Considerations
None
Retrieval Examples
In the examples, a SAS macro variable is used to specify the DDname part of the CA MICS file name. These macro variables are a standard part of CA MICS and are available for all files. The macro variable name has the form &diiit, where d is the database identifier, iii is the information area name, and t is the timespan. For the examples, a database identifier of P is used. The identifier is installation-dependent, so you should find out what the identifiers are at your installation.
- Using the most recent DAYS timespan HVTVDA file, display the total blocks of data moved between DASD cache and z/OS for each cluster, per HOUR. Display the percent buckets for each blocksize range and the estimated average blocksize. Generate a separate page for each cluster.DATA; SET &pHVTd..HVTVDA01; DATE=DATEPART(ENDTS) ; FORMAT DATE DATE8. ; * ; PROC PRINT LABEL ; PAGEBY HVTCLID ; BY HVTCLID DATE ; ID HOUR ; VAR VDANUMBS VDAPC00K VDAPC02K VDAPC04K VDAPC08K VDAPC16K VDAPC32K VDAPC64K VDAAVBSZ ; TITLE1 'Daily Tape Server I/O Block Size Analysis by HOUR' ; RUN ;