The CA MICS Tape Volume Summary Report displays tape volume
information, by volume group (VOLGROUP), for each tape
library system selected.
The primary purpose is to report on overall tape volume usage
and availability for each volume group. Counts are provided
for total, used, and available (scratch) volumes. The
available scratch tapes are shown as a percentage of the
total, providing a metric value that can be monitored against
targeted goals.
The report also provides useful information on the active or
used volumes in each volume group, including the number of
files, average files per volume, average storage used on each
volume, and total storage across all used volumes. The
average age of used volumes is also reported. This value can
be useful in determining optimal tape retention settings.
Finally, a graphic shows the number of used volumes as a
percentage of total volumes in each volume group. As the
chart value approaches 100%, the number of available scratch
tapes approaches 0.
The report heading includes the following general
information:
Report Label Example
------------------ ------------------------------------
report title CA MICS Tape Data Set Summary Report
report granularity Data Summarized by Day
Inquiry TAPLTA
Run Date 10SEPyy
Tape Library Name CA1P
Tape Library Type CA-1
Report Start 09SEPyy:10:24
Report End 10SEPyy:10:24
The data elements used to populate the heading data are:
Report title MICF generated
Report granularity MICF generated
Inquiry MICF generated
Run Date MICF generated
Tape Library Name TAPELIB - Tape Library Identifier
Tape Library Type TLMPROD - Tape Management System Name
Report Start MICF generated
Report End MICF generated
The first line of the report body shows the date of the data
presented in the report. The remainder of the report body
reports on the following measurements from left to right:
Volume Group
o Volume Group - VOLGROUP
Overall Tape Volume Statistics:
o Total Volume Count - TMVVOLT
o Non-Scratch Volume Count - TMVVOLN
o Scratch Volume Count - TMVVOLS
o Percent of Scratch Volumes - TMVPCVSC
Active (Used) Volume Statistics:
o Total Files on Non-Scratch Volumes - TMVFILES
o Average Files on Non-Scratch Volumes - TMVAVFIL
o Average Non-Scratch Volume Usage(M) - TMVAVUSM
o Average Non-Scratch Volume Usage(G) - TMVTUSEG
o Average Days Since Last Use - TMVAVLUS
Note: The age field is manipulated to show the value in a
YY DDD format on the report.
Percent Volumes Used:
o Percent of Non-Scratch Volumes - TMVPCVNS
A graphic shows the active volumes as a percentage of the
total tapes in the volume group.
At the bottom of the report, a TOTALS line shows summary
totals, minimums, maximums, averages, or percentages, as
appropriate for the detailed data in each column.
Report data is generated from the DAYS timespan of the Tape
Data Set (TMCTMD) file.
To produce the report:
o Enter the CA MICS Workstation Facility (MWF)
o Choose option 2, CA MICS Information Center Facility
(MICF)
o Choose option 2, Database Inquiries
o Select TAPLTB, whose Catalog Group is STORAGE
o Complete the MICF Execution panel
o Complete the specification panel. Refer to section
3.1.1, TLM MICF Inquiry Specification Panels, for
information about modifiable panel fields.
Tape Volume Scratch Availability Report (TAPLTB) Rpt Sample
-----------------------------------------------------------
The following report sample shows summary tape volume
statistics for a site that has used the volume group
(VOLGROUP) data element to classify tape data in three
categories:
Media Type 1: Large tape data sets on real cartridges
Media Type 2: Smaller tape data sets on real cartridges
Virtual Tape: Data sets stored in the virtual tape system
Virtual tape is used as the primary tape storage media. The
scratch tape availability (17.6%) looks reasonable given the
average age of virtual tape volumes (280 days). It is
interesting to note that there are no scratch tapes available
for Media Type 1. At this site, it may be that these are
tape volumes imported from outside the tape library,
therefore there is no need or expectation for requests to
create volumes in this volume group.
Inquiry : TAPLTB CA MICS Tape Volume Summary Report Run Date: 11Julyy Information Summarized by Day Page 001 Tape Library Name: TLB1 Report Start: 02JULyy:14:05 Tape Library Type: RMM Report End : 03JULyy:14:05 ---------------------------------------------------------------------------------------------------------------------------------- Day: 03JULyy --Overall Tape Volume Statistics--- -----Active (Used) Volume Statistics------ --Percent Volumes Used--- Avg Avg Est Avg Files Vol Storage Volume Total Active Scratch Pct File per Storg Size Age Volume Group Volumes Volumes Volumes Scrch Count Vol (MB) (GB) YY / DDD ---------------- --------- --------- ------- ----- -------- ----- ----- ------- -------- 0----25----50----75---100 Media Type 1 27 27 0 0.0% 32 1.2 583 16 6 / 189 ************************* Media Type 2 3555 3261 294 8.3% 10031 3.1 941 3068 8 / 245 *********************** Virtual Tape 49998 41211 8787 17.6% 681409 16.5 1829 75389 0 / 280 ********************* ---------------- --------- --------- ------- ----- -------- ----- ----- ------- -------- 0----25----50----75---100 TOTALS 53580 44499 9081 16.9% 691472 12.9 1707 78473 1 / 128 ********************** ---------------------------------------------------------------------------------------------------------------------------------
Figure 3-3. Tape Volume Summary Report
|
Copyright © 2014 CA.
All rights reserved.
|
|