SVTRMR - Real Tape Drive Mount Request File

At the DETAIL timespan, the Real Tape Drive Mount Request File provides information about a mount request for a multivolume cartridge on a real tape drive. It is derived from the VTSS user SMF record, subtype 16. This record is produced for every mount request event and contains metrics covering the time from mount request until mount satisfaction (ready status).
micsrm140
At the DETAIL timespan, the Real Tape Drive Mount Request File provides information about a mount request for a multivolume cartridge on a real tape drive. It is derived from the VTSS user SMF record, subtype 16. This record is produced for every mount request event and contains metrics covering the time from mount request until mount satisfaction (ready status).

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
MICS
is installed. Therefore, this table has been generated as part of the installation process to accurately reflect the
MICS
system at your installation.
SVTRMR Sort Sequence and Data Granularity
+---------+-------------------------------------------------+ |Timespan | Level of Data Granularity | +---------+-------------------------------------------------+ | | | | DETAIL |SYSID VTSSID VTSSSCL YEAR MONTH | | |DAY HOUR ENDTS | | | | | DAYS |SYSID VTSSID VTSSSCL YEAR MONTH | | |DAY HOUR | | | | | WEEKS |SYSID VTSSID VTSSSCL YEAR WEEK | | |ZONE HOUR | | | | | MONTHS |SYSID VTSSID VTSSSCL YEAR MONTH | | |ZONE | | | | | YEARS | N/A | | | | +---------+-------------------------------------------------+ | TABLES | N/A | +---------+-------------------------------------------------+ Generation Date: Tue, May 12, 2009
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 table below identifies data elements contained in this file.
GENERATION DATE: Tue, May 12, 2009 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 XD.M..E MONTH - Month of Year XDWM..E SYSID - System Identifier XDWM..E VTSSID - VTSS ID XDWM..E VTSSSCL - MVC Storage Class 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 ENDTS - End Time Stamp XDWM..E ORGSYSID - Originating System Identification XDWM..E STARTTS - Start Time Stamp XDWM..E SVTRDST1 - Total RTD Mounts within Limit 1 XDWM..E SVTRDST2 - Total RTD Mounts within Limit 2 XDWM..E SVTRDST3 - Total RTD Mounts within Limit 3 XDWM..E SVTRDST4 - Total RTD Mounts within Limit 4 XDWM..E SVTRDST5 - Total RTD Mounts within Limit 5 XDWM..E SVTRDST6 - Total RTD Mounts within Limit 6 XDWM..E SVTRDST7 - Total RTD Mounts within Limit 7 XDWM..E SVTRDST8 - Total RTD Mounts within Limit 8 XDWM..E SVTRVAL1 - RTD Mount Time Distribution Limit 1 XDWM..E SVTRVAL2 - RTD Mount Time Distribution Limit 2 XDWM..E SVTRVAL3 - RTD Mount Time Distribution Limit 3 XDWM..E SVTRVAL4 - RTD Mount Time Distribution Limit 4 XDWM..E SVTRVAL5 - RTD Mount Time Distribution Limit 5 XDWM..E SVTRVAL6 - RTD Mount Time Distribution Limit 6 XDWM..E SVTRVAL7 - RTD Mount Time Distribution Limit 7 X.....E VTSSAID - Actual Volser from Vol1 Label X.....E VTSSMID - MVC Volser ID X.....E VTSSRID - RTD Device ID X..... VTSSSNS - RTD Sense Data Retained Data Elements X.....E RMRMET - Mount End Timestamp X.....E RMRMST - Mount Start Timestamp X.....E RMRMTP - Mount Request Type X.....E RMRRWS - Read/Write Status Accumulated Data Elements XDWM..E RMRCOUNT - Total RTD Mounts XDWM..E RMRMNTTM - Mount Time XDWM..E RMRMTA - Audit Count XDWM..E RMRMTC - Consolidate Count XDWM..E RMRMTD - Drain Count XDWM..E RMRMTL - Reclaim Count XDWM..E RMRMTM - Migrate Count XDWM..E RMRMTOTH - Other Count XDWM..E RMRMTR - Recall Count XDWM..E RMRMTX - Export Count XDWM..E RMRRRO - Read Only Count XDWM..E RMRRRW - Read/Write Count XDWM..E RMRRTDER - RTD Error Count Minimum Data Elements XDWM..E RMRMNMTM - Min Mount Time Maximum Data Elements XDWM..E RMRMXMTM - Max Mount Time Derived Data Elements XDWM..E RMRAVMTM - Avg Mount Time XDWM..E RMRPCRM1 - Pct Mounted Within Limit 1 XDWM..E RMRPCRM2 - Pct Mounted Within Limit 2 XDWM..E RMRPCRM3 - Pct Mounted Within Limit 3 XDWM..E RMRPCRM4 - Pct Mounted Within Limit 4 XDWM..E RMRPCRM5 - Pct Mounted Within Limit 5 XDWM..E RMRPCRM6 - Pct Mounted Within Limit 6 XDWM..E RMRPCRM7 - Pct Mounted Within Limit 7 XDWM..E RMRPCRM8 - Pct Mounted Within Limit 8
For a detailed description of individual data dictionary elements, see Real Tape Drive Mount Activity File (SVTRMR).

Usage Considerations

Mount time and the mount request type are key statistics to track in this file. Monitoring mount time trends and mount characteristics can provide the Storage Administrator with information useful in making performance and tuning recommendations.
Trending the eight RTD mount time distribution buckets supports identification of possible performance issues. If a significant number of mounts are falling into the higher distribution bucket elements, meaning they are excessively long, a detailed analysis should be performed to determine the reason for the excessive mount time. It might be due to tape drive contention, robot contention, library maintenance conflicting with production batch, and so on.

Retrieval Examples

In the examples, a SAS macro variable is used to specify the DDname part of the
MICS
file name. These macro variables are a standard part of
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.
  • Generate a report displaying real tape mount activity and mount response time by hour.
    %LET BY = SYSID VTSSID VTSSSCL HOUR; %LET BREAK = HOUR; PROC SORT DATA=&psvtd..SVTRMR01 OUT=RMR; BY &BY; RUN; DATA RMR2; SET RMR; %RMRSUM(SUMBY=&BY, SUMBREAK=&BREAK); RUN; PROC PRINT DATA=RMR2 LABEL NOOBS; BY SYSID VTSSID; VAR SYSID VTSSID VTSSSCL HOUR RMRCOUNT RMRAVMTM RMRMXMTM RMRMTM RMRMTR RMRMTL RMRMTD RMRMTA RMRMTC RMRMTX; TITLE 'RTD Mount Activity'; RUN;
    Note:
    Drop storage class from the BY and VAR statements to get gross mounts by SYSID and VTSSID.