This command is used when running the SVTSUTIL program to generate a list of all Virtual Volumes in VOLSER order that have been stacked on physical tape.
LIST=BACKSTORE
Sample JCL can be found in HLQ.CCUUJCL (BACKSTOR).
The report shows each application data set name on each Virtual Volume and its associated physical tape primary and duplex VOLSERs, group and subgroup information, Virtual Volume size in megabytes, actual Virtual Volume size in megabytes, and DASD buffer compression percentage. The compression percentage is set to zero for any Virtual Volumes that do not contain compressed data. Totals of volumes, compressed volumes, and uncompressed volumes are displayed at the end, along with total uncompressed Virtual Volume size, total compressed size, and overall compression percentage. This report does not show Virtual Volumes stored in the DASD buffer, but that are not yet Externalized to physical tape.
Note: You can run this report when CA Vtape is active or inactive. When CA Vtape is inactive, include the VCAT and Global DD statements.
Example of the LIST=BACKSTOR Report
CA Vtape r12.0 S V T S U T I L - CA11.SVT3 - Mon SEP 22, 2008 14:59:45 -------------------------------------------- Utility Control Statement(s) & Report Log -------------------------------------------- SVTSU0171I LIST=BACKSTORE SVTSU1661I Accessing SVTS to identify GLOBAL VCAT and Local VCAT datasets Reason: GLOBAL DDName statement not defined VCAT DDName statement not defined List Backstore Log 2008.266 14:59:45 Virtual Prim Primary Primary2 Duplex Duplex2 Sub Volser Data Set Name FS# Volser Volser Volser Volser Group Group MB Size Cmp% 101108 SVTS120.QASVT4.G1113.DMSN.C2008264.T132453 0001 540949 11 S 816 816 0% SVTS120.QASVT4.G1113.ALC 101109 SVTS120.QASVT4.G1111.DMSN.C2008264.T132454 0001 541345 11 S 976 976 0% 101110 SVTS120.QASVT4.G1111.COMP 0001 541518 11 S 1,928 1,928 0% SVTS120.QASVT4.G1111.COMPSRT 101111 SVTS120.QASVT4.G1113.COMP 0001 541391 11 S 968 968 0% 101112 SVTS120.QASVT4.G1111.SYNSRT 0001 541344 11 S 732 732 0% 101113 SVTS120.QASVT4.G412.DMSN.C2008264.T134835 0004 542548 41 S 1,480 1,480 0% SVTS120.QASVT4.G412.ALC SVTS120.QASVT4.G412 SVTS120.QASVT4.G412.DFDSS SVTS120.QASVT4.G412.VB SVTS120.QASVT4.G412.FDR SVTS120.QASVT4.G412.VTS 101114 SVTS120.QASVT4.G111.DMSN.C2008264.T134836 0002 541344 11 S 12 12 0% 101115 SVTS120.QASVT4.G113.DMSN.C2008264.T134836 0005 541345 11 S 556 556 0% 101116 SVTS120.QASVT4.G410.DMSN.C2008264.T134847 0004 542407 41 S 1,048 1,048 0% 101117 SVTS120.QASVT4.G113.COMP 0002 541345 11 S 2,000 2,000 0% SVTS120.QASVT4.G113.COMPSRT 101119 SVTS120.QASVT4.G111.COMP 0003 540949 11 S 2,000 2,000 0% 101120 SVTS120.QASVT4.G410.COMP 0001 542406 41 S 2,000 2,000 0% Report was abbreviated to save space. Volume Count MB Size Cmp% TOTAL UNCOMPRESSED 162 109,216 TOTAL COMPRESSED 4 648 564 13% TOTAL 166 109,864 End of List Backstore Log
The following is an example of truncated abbreviated output for LIST=BACKSTORE command output:
Volume Count MB Size Cmp% TOTAL UNCOMPRESSED 2,353 750,412 TOTAL COMPRESSED 24 9,068 3,136 66% TOTAL 2,377 759,480 End of List Backstore Log SVTSU0172I LIST=BACKSTORE SVTSUT60, RC= 0 SVTSU0173I Number of commands processed: 1 SVTSU0174I Highest condition code: 0
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