The CA MICS IBM VTS Physical Tape Drive Analysis Report
displays physical tape drive and tape mount statistics for
the real tape drives attached to the VTS, including cartridge
mount statistics broken down by type, such as those for
recall (due to a virtual volume DASD cache miss) or
reclamation (because the reclamation threshold has been met).
The report uses the header for IBM VTS distributed libraries,
described in section 3.2.1.1.2
The report body reports on the following measurements from
left to right:
Interval count and general tape drive information:
o Number of Recording Intervals - INTERVLS
o Number of Installed Physical Tape Device - VDLPDI
o Avg Physical Drives Available - VDLAVPDA
Minimum, average, and maximum number of concurrently
mounted physical drives:
o Min Physical Drives Concur Mounted - VDLMNPCM
o Avg Physical Drives Concur Mounted - VDLAVPCM
o Max Physical Drives Concur Mounted - VDLMXPCM
Tape mount counts, total and by category:
o Total Physical Mounts - VDLTPM
o Physical Stage (Recall) Mounts - VDLPSTG
o Physical Migrate (Copy) Mounts - VDLPMIG
o Physical Reclaim Mounts - VDLPREC
o Physical Secure Data Erase Mounts - VDLPSDE
* Note that secure data erase mount counts are only
available if IBM F/C 4001 is enabled.
Robotic accessor counts:
o Accessor A Mounts - VDLACMA
o Accessor B Mounts - VDLACMB
* Note that the accessor mount counts can exceed the total
VTS mounts because non-VTS (that is, native) mounts are
included
Minimum, average, and maximum mount times (mm:ss)
o Min Physical Mount Time - VDLMNPMT
o Avg Physical Mount Time - VDLAVPMT
o Max Physical Mount Time - VDLMXPMT
Number of virtual volumes pre-migrated (copied) and the
amount of data transferred to and from physical cartridges:
o Virtual Volumes Copied to Physical - VDLPCPY
o Data Read from Physical Media (MB) - VDLPDR
o Data Written to Physical Media (MB) - VDLPDW
* Note that data read from physical media is only
available if IBM F/C 4001 is disabled.
At the bottom of the report, a line is generated that shows
summary totals, minimums, maximums, averages, or percentages,
as appropriate for the detailed data in each column.
All report data is generated from the VTS Distributed Library
Activity (IVTVDL) 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 TAPLVC, IBM VTS Physical Tape Drive Activity,
whose Catalog Group is PERFORM
o Complete the MICF Execution panel
o Complete the specification panel. Refer to section
3.2.1.1.1, IBM VTS MICF Inquiry Specification Panels, for
information about modifiable panel fields.
IBM VTS Physical Tape Drive Analysis (TAPLVC) Report Sample
-----------------------------------------------------------
The following report sample shows the physical drive activity
for a day by hour. Displayed are the User Interface (UI) and
Secondary VTSs that participate in a peer-to-peer
configuration.
For these two VTSs, the minimum number of physical drives
concurrently mounted are consistently approaching the number
available, except for the hours 10:00 AM through 2:00 PM.
Most of the mounts for cartridge reclamation, however, are
occurring from hours 2:00 AM through 10:00 AM. To maximize
drives available for z/OS workloads, it may be better if the
reclamation mounts were occurring during the low utilization
hours of 10:00 AM through 2:00 PM.
Inquiry : TAPLVC IBM VTS Physical Tape Drive Analysis Report Run Date: 02OCTyy Data Presented by Hour within Day Page 001 VTS Library ID: K9230 Library Make-Model: 3584-L22 Lib Maint Level: 534.13 Report Start: 29SEPyy:00:00 Library Type : PtP-SECONDARY VTS Cache Size : 1728 GB VTS Maint Level: 749.05 Report End : 29SEPyy:24:00 Composite ID : K9200 F/C 4001 Status : Enabled Timespan : DAYS ---------------------------------------------------------------------------------------------------------------------------------- Day: 29SEPyy -Tape-- Concurrent ------VTS Mount Counts------- Accssr Mnts ---Mount Times--- Virtual -Cartridge MB Data- Numb Drives Mounts VTS+Native Min Avg Max Volumes Transferred HOUR Intv Ins Avl Min Avg Max Total Recal Copy Reclm SDE *A* *B* MM:SS MM:SS MM:SS Pre-mig Read Written ---- ---- --- --- --- --- --- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ------- -------- -------- 0 1 12 12 10 11 12 36 31 5 0 0 36 0 0:22 0:26 0:35 300 n/a 135508 1 1 12 12 9 11 12 33 26 7 0 0 33 0 0:21 0:25 0:38 369 n/a 124638 2 1 12 12 10 11 12 43 26 11 6 0 43 0 0:21 0:26 0:39 559 n/a 99471 3 1 12 12 12 12 12 42 28 9 5 0 42 0 0:23 0:28 0:47 287 n/a 133107 4 1 12 12 12 12 12 46 30 9 7 0 56 0 0:22 0:26 0:36 134 n/a 44168 5 1 12 12 12 12 12 32 21 8 3 0 32 0 0:21 0:26 0:36 193 n/a 38378 6 1 12 12 11 11 12 25 15 6 4 0 37 0 0:22 0:26 0:38 190 n/a 91743 7 1 12 12 12 12 12 31 22 6 3 0 31 0 0:23 0:27 0:32 111 n/a 61634 8 1 12 12 12 12 12 76 57 12 7 0 77 0 0:21 0:29 0:49 157 n/a 62119 9 1 12 12 11 11 12 52 46 4 2 0 51 0 0:22 0:26 0:43 84 n/a 19312 10 1 12 12 6 10 12 25 19 3 3 0 25 0 0:23 0:26 0:39 85 n/a 22047 11 1 12 12 6 6 6 3 0 2 1 0 2 0 0:22 0:22 0:23 22 n/a 1424 12 1 12 12 3 3 3 1 0 1 0 0 1 0 0:24 0:24 0:24 38 n/a 12049 13 1 12 12 1 2 4 4 2 2 0 0 4 0 0:21 0:23 0:26 11 n/a 3470 14 1 12 12 4 8 12 41 39 2 0 0 43 0 0:20 0:24 0:33 29 n/a 4815 15 1 12 12 12 12 12 44 42 2 0 0 45 0 0:20 0:24 0:31 51 n/a 5930 16 1 12 12 10 10 12 45 35 10 0 0 44 0 0:21 0:25 0:46 407 n/a 60376 17 1 12 12 10 11 12 42 37 5 0 0 42 0 0:22 0:26 0:35 662 n/a 237166 18 1 12 12 12 12 12 48 42 6 0 0 48 0 0:22 0:32 4:06 421 n/a 172615 19 1 12 12 12 12 12 33 25 8 0 0 33 0 0:22 0:25 0:34 385 n/a 164659 20 1 12 12 12 12 12 37 30 7 0 0 37 0 0:20 0:27 0:42 508 n/a 104061 21 1 12 12 11 11 12 40 32 6 2 0 40 0 0:21 0:25 0:35 371 n/a 141658 22 1 12 12 12 12 12 36 26 7 3 0 36 0 0:21 0:29 0:45 275 n/a 98418 23 1 12 12 12 12 12 39 28 9 2 0 39 0 0:22 0:26 0:40 196 n/a 112572 ---- --- --- --- --- --- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ------- -------- -------- Tots 24 12 12 1 10 12 854 659 147 48 0 877 0 0:20 0:27 4:06 5845 n/a 1951338 ----------------------------------------------------------------------------------------------------------------------------------
Inquiry : TAPLVC IBM VTS Physical Tape Drive Analysis Report Run Date: 02OCTyy Data Presented by Hour within Day Page 001 VTS Library ID: K9229 Library Make-Model: 3584-L22 Lib Maint Level: 534.13 Report Start: 29SEPyy:00:00 Library Type : PtP-UI VTS Cache Size : 1728 GB VTS Maint Level: 749.05 Report End : 29SEPyy:24:00 Composite ID : K9200 F/C 4001 Status : Enabled Timespan : DAYS ---------------------------------------------------------------------------------------------------------------------------------- Day: 29SEPyy -Tape-- Concurrent ------VTS Mount Counts------- Accssr Mnts ---Mount Times--- Virtual -Cartridge MB Data- Numb Drives Mounts VTS+Native Min Avg Max Volumes Transferred HOUR Intv Ins Avl Min Avg Max Total Recal Copy Reclm SDE *A* *B* MM:SS MM:SS MM:SS Pre-mig Read Written ---- ---- --- --- --- --- --- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ------- -------- -------- 0 1 12 12 12 12 12 34 26 8 0 0 34 0 0:21 0:27 1:02 268 n/a 126058 1 1 12 12 12 12 12 28 25 3 0 0 28 0 0:22 0:26 0:34 355 n/a 113131 2 1 12 12 9 11 12 47 28 16 3 0 47 0 0:23 0:31 0:50 613 n/a 115091 3 1 12 12 12 12 12 34 24 5 5 0 44 0 0:22 0:37 4:16 218 n/a 111682 4 1 12 12 12 12 12 25 19 2 4 0 25 0 0:22 0:33 2:15 151 n/a 42245 5 1 12 12 12 12 12 26 18 5 3 0 30 0 0:21 0:28 0:45 177 n/a 42795 6 1 12 12 11 11 12 24 15 5 4 0 24 0 0:22 0:27 0:34 188 n/a 102321 7 1 12 12 10 11 12 40 31 6 3 0 40 0 0:23 0:29 0:39 131 n/a 60123 8 1 12 12 12 12 12 56 46 6 4 0 56 0 0:24 0:32 1:22 161 n/a 45376 9 1 12 12 10 11 12 40 33 3 4 0 40 0 0:23 0:29 1:04 53 n/a 20753 10 1 12 12 9 9 11 18 14 4 0 0 18 0 0:21 0:25 0:31 61 n/a 15345 11 1 12 12 8 8 8 4 0 3 1 0 4 0 0:23 0:27 0:33 37 n/a 2947 12 1 12 12 2 2 3 4 1 3 0 0 4 0 0:24 0:25 0:26 37 n/a 11272 13 1 12 12 3 3 5 6 4 2 0 0 6 0 0:21 0:24 0:26 13 n/a 4733 14 1 12 12 1 10 12 55 53 2 0 0 59 0 0:20 0:32 5:02 20 n/a 2007 15 1 12 12 9 11 12 47 43 4 0 0 47 0 0:21 0:27 0:39 187 n/a 20132 16 1 12 12 11 11 12 55 44 11 0 0 55 0 0:21 0:29 0:50 447 n/a 92645 17 1 12 12 12 12 12 43 38 5 0 0 44 0 0:23 0:34 1:20 567 n/a 229907 18 1 12 12 11 11 12 43 36 7 0 0 43 0 0:22 0:30 1:14 411 n/a 173674 19 1 12 12 11 11 12 35 25 10 0 0 34 0 0:21 0:26 0:46 460 n/a 139604 20 1 12 12 7 10 12 31 20 11 0 0 31 0 0:21 0:31 1:07 441 n/a 121025 21 1 12 12 12 12 12 34 33 1 0 0 34 0 0:22 0:28 0:42 358 n/a 127840 22 1 12 12 11 11 12 41 34 7 0 0 41 0 0:21 0:28 0:56 248 n/a 104660 23 1 12 12 10 11 12 42 35 7 0 0 42 0 0:22 0:26 0:35 214 n/a 115835 ---- --- --- --- --- --- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ------- -------- -------- Tots 24 12 12 1 10 12 812 645 136 31 0 830 0 0:20 0:29 5:02 5816 n/a 1941201 ----------------------------------------------------------------------------------------------------------------------------------
Figure 3-7. IBM VTS Physical Tape Drive Analysis
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