TAP IBM VTS Cartridge Use Distribution(TAPLVF)

The
MICS
IBM VTS Cartridge Use Distribution Report shows the count of physical cartridges in each of 20 ranges.
micsrm140
The ranges (that is, 0 to 5, 5 to 10, 10 to 15, and so on) represent the percent of active virtual volume data. For example, a value of 3 under the <=05 heading indicates that three cartridges had 5 percent or less active data. The report also displays the total number of active cartridges and the reclamation threshold, if available.
Over time, the virtual volumes written to physical cartridges expire or become invalid (that is, a z/OS job added records to a virtual tape data set making the original copy invalid). An essential function of a VTS system is to reclaim the wasted tape media used by these expired or invalid virtual tape volumes by copying the valid volumes from a fragmented cartridge to a non-fragmented cartridge.
The report uses the header for IBM VTS distributed libraries, described in IBM VTS Report Headers in IBM VTS MICF Inquiry General Information.
The report body includes the following measurements:
The report body reports on the following measurements from left to right:
Interval count and number of active cartridges containing the indicated percentage of active data:
  • Number of Recording Intervals - INTERVLS
  • Avg Vols With 0% to 5% Active Data - VDLAVA00
  • Avg Vols With > 5% to 10% Active Data - VDLAVA05
  • Avg Vols With > 10% to 15% Active Data - VDLAVA10
  • Avg Vols With > 15% to 20% Active Data - VDLAVA15
  • Avg Vols With > 20% to 25% Active Data - VDLAVA20
  • Avg Vols With > 25% to 30% Active Data - VDLAVA25
  • Avg Vols With > 30% to 35% Active Data - VDLAVA30
  • Avg Vols With > 35% to 40% Active Data - VDLAVA35
  • Avg Vols With > 40% to 45% Active Data - VDLAVA40
  • Avg Vols With > 45% to 50% Active Data - VDLAVA45
  • Avg Vols With > 50% to 55% Active Data - VDLAVA50
  • Avg Vols With > 55% to 60% Active Data - VDLAVA55
  • Avg Vols With > 60% to 65% Active Data - VDLAVA60
  • Avg Vols With > 65% to 70% Active Data - VDLAVA65
  • Avg Vols With > 70% to 75% Active Data - VDLAVA70
  • Avg Vols With > 75% to 80% Active Data - VDLAVA75
  • Avg Vols With > 80% to 85% Active Data - VDLAVA80
  • Avg Vols With > 85% to 90% Active Data - VDLAVA85
  • Avg Vols With > 90% to 95% Active Data - VDLAVA85
  • Avg Vols With > 95% to 100% Active Data - VDLAVA85
Average number of active tape cartridges and the reclamation threshold percentage:
  • Avg Total Volumes with Active Data - VDLAVATO
  • Avg Reclaim Threshold Percentage - VDLAVTPC
Note:
The reclamation threshold percentage is only available if IBM Function Code F/C 4001 is disabled. The value can be inferred, however, by examining the distribution counts. A significant drop-off in the count of active cartridges will appear under the distribution range that includes the reclamation threshold value.
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:
  1. Enter the
    MICS Workstation Facility
    (MWF)
  2. Choose option 2,
    MICS Information Center Facility
    (MICF)
  3. Choose option 2, Database Inquiries
  4. Select TAPLVF, IBM VTS Cartridge Utilization Analysis Report, whose Catalog Group is PERFORM
  5. Complete the MICF Execution panel
  6. Complete the specification panel. For information about modifiable panel fields, see IBM VTS MICF Inquiry Specification Panels in IBM VTS MICF Inquiry General Information.
IBM VTS Cartridge Utilization Analysis (TAPLVF) Report Sample
The following report sample shows the active physical cartridge utilization distribution for a day by hour. The report first shows the utilization distribution for a standalone VTS. The following two pages show the distribution for the active cartridges belonging to the User Interface (UI) and Secondary VTSs that participate in a peer-to-peer configuration.
Because the IBM Function Code FC/4001 is enabled, the actual reclamation threshold value is not available in the raw data. From an examination of the report data, however, you can assume that the threshold is somewhere around 20% and 25% because the number of tapes in that range, (<=25), drops dramatically from the number in the range 25% to 30% (<=30).

IBM VTS Cartridge Use Distribution Samples

Inquiry : TAPLVF IBM VTS Cartridge Use Distribution Report Run Date: 02OCTyy Data Presented by Hour within Day Page 002 VTS Library ID: 71846 Library Make-Model: 3494-L10 Lib Maint Level: 534.01 Report Start: 29SEPyy:00:00 Library Type : STANDALONE VTS Cache Size : 864 GB VTS Maint Level: 7414.00 Report End : 29SEPyy:24:00 Composite ID : n/a F/C 4001 Status : Disabled Timespan : DAYS ---------------------------------------------------------------------------------------------------------------------------------- Day: 28MARyy +------------- Number of Cartridges Containing the Indicated Percentage of Active Data -----------+ Avg Numb | < | Active Reclaim HOUR Intv <=05 <=10 <=15 <=20 <=25 <=30 <=35 <=40 <=45 <=50 <=55 <=60 <=65 <=70 <=75 <=80 <=85 <=90 <=95 =100 Carts Thrsh % ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- 0 1 0 1 1 2 16 311 211 149 113 62 56 32 29 14 18 16 16 14 9 70 1140 25.00 % 1 1 0 0 0 1 13 311 211 149 113 62 56 32 29 14 18 16 16 14 9 71 1135 25.00 % 2 1 0 0 0 2 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 73 1134 25.00 % 3 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 73 1133 25.00 % 4 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 74 1134 25.00 % 5 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 74 1134 25.00 % 6 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 74 1134 25.00 % 7 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 74 1134 25.00 % 8 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 75 1135 25.00 % 9 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 75 1135 25.00 % 10 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 75 1135 25.00 % 11 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 76 1136 25.00 % 12 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 76 1136 25.00 % 13 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 77 1137 25.00 % 14 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 77 1137 25.00 % 15 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 78 1138 25.00 % 16 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 78 1138 25.00 % 17 1 0 0 0 1 9 311 211 149 113 62 56 32 29 14 18 16 16 14 9 78 1138 25.00 % 18 1 0 0 0 1 11 311 212 148 116 60 63 33 32 13 17 17 13 8 11 70 1136 25.00 % 19 1 0 0 0 1 9 311 212 148 116 60 63 33 32 13 17 17 13 8 12 72 1137 25.00 % 20 1 0 0 0 1 9 311 212 148 116 60 63 33 32 13 17 17 13 8 12 72 1137 25.00 % 21 1 0 0 0 1 9 311 212 148 116 60 63 33 32 13 17 17 13 8 12 75 1140 25.00 % 22 1 0 0 0 1 9 311 212 148 116 60 63 33 32 13 17 17 13 8 12 76 1141 25.00 % 23 1 0 0 0 1 9 311 212 148 116 60 63 33 32 13 17 17 13 8 12 79 1144 25.00 % ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- Avgs 1 0 0 0 1 10 311 211 149 114 62 58 32 30 14 18 16 15 13 10 75 1137 25.00 % ----------------------------------------------------------------------------------------------------------------------------------
Inquiry : TAPLVF IBM VTS Cartridge Use Distribution 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 +------------- Number of Cartridges Containing the Indicated Percentage of Active Data -----------+ Avg Numb | < | Active Reclaim HOUR Intv <=05 <=10 <=15 <=20 <=25 <=30 <=35 <=40 <=45 <=50 <=55 <=60 <=65 <=70 <=75 <=80 <=85 <=90 <=95 =100 Carts Thrsh % ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- 0 1 0 0 0 0 0 5 18 237 172 113 73 56 50 47 40 23 9 23 20 33 919 n/a 1 1 0 0 0 0 0 5 18 237 172 113 73 56 50 47 40 23 9 23 20 33 919 n/a 2 1 0 1 2 0 2 1 20 237 170 114 75 55 49 48 40 21 12 20 23 29 919 n/a 3 1 0 1 2 0 1 1 19 237 170 114 75 55 49 48 40 21 12 20 23 30 918 n/a 4 1 0 1 0 3 0 1 17 237 170 114 75 55 49 48 40 21 12 20 23 30 916 n/a 5 1 1 2 0 0 1 0 18 239 171 112 74 55 49 51 38 19 14 21 26 27 918 n/a 6 1 1 0 1 0 1 2 14 239 171 112 74 55 49 51 38 19 14 21 26 27 915 n/a 7 1 2 0 1 0 0 0 14 239 171 112 74 55 49 51 38 19 14 21 26 28 914 n/a 8 1 0 0 0 0 3 1 10 239 171 112 74 55 49 51 38 19 14 21 26 28 911 n/a 9 1 1 1 0 1 0 0 10 239 171 112 74 55 49 51 38 19 14 21 26 29 911 n/a 10 1 0 0 0 0 1 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 909 n/a 11 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 12 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 13 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 14 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 15 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 16 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 30 908 n/a 17 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 31 909 n/a 18 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 32 910 n/a 19 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 32 910 n/a 20 1 0 0 0 0 0 0 9 239 171 112 74 55 49 51 38 19 14 21 26 33 911 n/a 21 1 0 0 0 1 2 0 10 238 171 114 72 58 53 46 37 17 16 18 26 32 911 n/a 22 1 1 0 0 0 1 0 9 238 171 114 72 58 53 46 37 17 16 18 26 34 911 n/a 23 1 0 0 0 0 1 0 8 238 171 114 72 58 53 46 37 17 16 18 26 34 909 n/a ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- Avgs 1 0 0 0 0 1 1 12 238 171 113 74 55 50 50 38 19 14 21 25 31 912 n/a ----------------------------------------------------------------------------------------------------------------------------------
Inquiry : TAPLVF IBM VTS Cartridge Use Distribution 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 +------------- Number of Cartridges Containing the Indicated Percentage of Active Data -----------+ Avg Numb | < | Active Reclaim HOUR Intv <=05 <=10 <=15 <=20 <=25 <=30 <=35 <=40 <=45 <=50 <=55 <=60 <=65 <=70 <=75 <=80 <=85 <=90 <=95 =100 Carts Thrsh % ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- 0 1 1 0 2 0 0 1 16 243 169 113 80 66 53 40 25 19 21 22 30 29 930 n/a 1 1 1 0 2 0 0 1 16 243 169 113 80 66 53 40 25 19 21 22 30 30 931 n/a 2 1 1 0 2 0 0 2 14 243 169 113 80 66 53 40 25 19 21 22 30 31 931 n/a 3 1 1 1 0 0 1 1 13 243 169 113 80 66 53 40 25 19 21 22 30 32 930 n/a 4 1 0 1 2 0 1 0 11 243 169 113 80 66 53 40 25 19 21 22 30 32 928 n/a 5 1 1 0 1 1 1 1 8 243 169 113 80 66 53 40 25 19 21 22 30 33 927 n/a 6 1 1 1 0 2 0 0 7 243 169 113 80 66 53 40 25 19 21 22 30 34 926 n/a 7 1 0 1 2 0 1 0 5 243 169 113 80 66 53 40 25 19 21 22 30 35 925 n/a 8 1 1 0 1 0 2 0 5 246 165 114 80 66 54 39 26 19 23 22 29 33 925 n/a 9 1 0 0 0 0 0 0 7 250 161 119 76 66 56 34 28 22 21 21 28 32 921 n/a 10 1 0 0 1 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 30 921 n/a 11 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 31 921 n/a 12 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 32 922 n/a 13 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 32 922 n/a 14 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 32 922 n/a 15 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 32 922 n/a 16 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 32 922 n/a 17 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 33 923 n/a 18 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 33 923 n/a 19 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 33 923 n/a 20 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 34 924 n/a 21 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 34 924 n/a 22 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 34 924 n/a 23 1 0 0 0 0 0 0 6 250 161 122 74 66 56 34 29 21 20 24 27 34 924 n/a ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------ ------- Avgs 1 0 0 1 0 0 0 8 248 164 119 76 66 55 36 28 20 21 23 28 32 925 n/a ----------------------------------------------------------------------------------------------------------------------------------