HVTHPG - Hydra Hnode Cache Pref Grp Statistics File

The Hydra Cache Preference Group Statistics file contains metrics on virtual volume totals, and data in cache age for each preference group with a cache partition. It is derived from the IBM Virtualization Engine TS7700 Series Statistical Data, Hnode HSM Historical Record. This record is produced every 15 minutes.
micsrm140
The Hydra Cache Preference Group Statistics file contains metrics on virtual volume totals, and data in cache age for each preference group with a cache partition. It is derived from the IBM Virtualization Engine TS7700 Series Statistical Data, Hnode HSM Historical Record. This record is produced every 15 minutes.

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.
HVTHPG Sort Sequence and Data Granularity
+---------+-------------------------------------------------+ |Timespan | Level of Data Granularity | +---------+-------------------------------------------------+ | | | | DETAIL |SYSID HVTGRID HVTCLID HVTNODE HVTHCPC | | |HVTCPPG YEAR MONTH DAY HOUR | | |ENDTS | | | | | DAYS |SYSID HVTGRID HVTCLID HVTNODE HVTHCPC | | |HVTCPPG YEAR MONTH DAY HOUR | | | | | WEEKS |SYSID HVTGRID HVTCLID HVTNODE HVTHCPC | | |HVTCPPG YEAR WEEK ZONE HOUR | | | | | MONTHS |SYSID HVTGRID HVTCLID HVTNODE HVTHCPC | | |HVTCPPG 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.

Data Elements List

The following table identifies data elements that are contained in this file.
GENERATION DATE: Wed, May 27, 2015 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 HVTCPPG - HSM Cache Partition Preference Group XDWM..E HVTGRID - Grid Composite ID XDWM..E HVTHCPC - HSM Cache Partition Number 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 HPGAVATD - Avg Age Time Delayed Copy Volumes Remove XDWM..E HPGCTD - Time Delayed Copy Volumes Removed XDWM..E HPGPVA35 - 35 Day DPM Rolling Avg Virt Vol Age XDWM..E HPGPVA4 - 4 HR DPM Rolling Avg Virt Vol Age XDWM..E HPGPVA48 - 48 HR DPM Rolling Avg Virt Vol Age XDWM..E HPGPVM35 - DPM Virtual Vols Migrated Last 35 Days XDWM..E HPGPVM4 - DPM Virtual Vols Migrated Last 4 Hours XDWM..E HPGPVM48 - DPM Virtual Vols Migrated Last 48 Hours XDWM..E HPGVA35 - 35 Day Rolling Avg Virt Vol Age XDWM..E HPGVA4 - 4 HR Rolling Avg Virt Vol Age XDWM..E HPGVA48 - 48 HR Rolling Avg Virt Vol Age XDWM..E HPGVM35 - Virtual Vols Migrated Last 35 Days XDWM..E HPGVM4 - Virtual Vols Migrated Last 4 Hours XDWM..E HPGVM48 - Virtual Vols Migrated Last 48 Hours Accumulated Data Elements XDWM..E HPGARC - Sum of Data Awaiting Replication (MB) XDWM..E HPGDRIC - Sum of Data Resident in Cache (GB) XDWM..E HPGPAWT - Sum of Avg Wait Time Delay Premig Vols XDWM..E HPGPIN - Sum of Pinned Volumes XDWM..E HPGPKV - Sum of Prefer Keep Volumes XDWM..E HPGPRV - Sum of Prefer Remove Volumes XDWM..E HPGPRVW - Sum of Volumes Wait Delayed Premigrate XDWM..E HPGPTSR - Sum of Size of Res Vols Wait Delay Pmig XDWM..E HPGSPK - Sum of Size of Prefer Keep Volumes (GB) XDWM..E HPGSPN - Sum of Size of Pinned Volumes XDWM..E HPGSPR - Sum of Size of Prefer Remove Volumes(G) XDWM..E HPGUMD - Sum of Unmigrated Data (MB) XDWM..E HPGUNM - Sum of Unmigrated Volumes XDWM..E HPGVVIC - Sum of Virtual Volumes in Cache Derived Data Elements XDWM..E HPGAVARC - Avg Data Awaiting Replication (MB) XDWM..E HPGAVDRC - Avg Data Resident in Cache (GB) XDWM..E HPGAVPIN - Avg Pinned Volumes XDWM..E HPGAVPKV - Avg Prefer Keep Volumes XDWM..E HPGAVPRV - Avg Prefer Remove Volumes XDWM..E HPGAVPSR - Avg Size of Res Vols Wait Delay Pmig XDWM..E HPGAVPVW - Avg Volumes Wait Delayed Premigration XDWM..E HPGAVPWT - Avg Wait Time Delay Premig Vols XDWM..E HPGAVSPK - Avg Size of Prefer Keep Volumes (GB) XDWM..E HPGAVSPN - Avg Size of Pinned Volumes (GB) XDWM..E HPGAVSPR - Avg Size of Prefer Remove Volumes(G) XDWM..E HPGAVUMD - Avg Unmigrated Data (MB) XDWM..E HPGAVUNM - Avg Unmigrated Volumes XDWM..E HPGAVVSZ - Avg Virtual Volume Size (MB) XDWM..E HPGAVVVC - Avg Virtual Volumes in Cache
For a detailed description of individual data dictionary elements, see Hydra Hnode Cache Pref Grp Statistics (HVTHPG).

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 HVTHPG file, display the cache preference group activity per hour. Display the cache age metrics for virtual volumes; volumes in cache for 4 hours, 48 hours, and 35 days; in addition to the volume count migrated for each of these time metrics. Typically, Preference Group 0 is defined to migrate volumes as soon as possible and remove from cache, so the age and number of volumes in cache will be smaller than Preference Group 1. Preference Group 1 is defined to keep virtual volumes in cache as long as possible if they are likely to be recalled or have short retention periods.
    DATA; SET &pIVTd..HVTHPG01; DATE=DATEPART(ENDTS) ; FORMAT DATE DATE8. ; * ; PROC PRINT LABEL ; PAGEBY HVTCPPG; BY HVTCLID HVTHCPC HVTCPPG DATE ; ID HOUR ; VAR HPGAVVVC HPGAVDRC HPGVM4 HPGVM48 HPGVM35 HPGVA4 HPGVA48 HPGVA35; TITLE1 'Daily Cache Preference Group Analysis by HOUR' ; RUN ;