MFE: TF SnapVX: Duplicate linked snapshots rows are shown when a QUERY SNAPSHOT DEV(ALL) COMPACT_QUERY(YES) command is issued

Summary: The QUERY SNAPSHOT report shows duplicate linked snapshot rows which causes confusion for the user.

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Symptoms

The QUERY SNAPSHOT report shows duplicate linked snapshot rows which causes confusion for the user.
GLOBAL MAXRC(4),SESSION_LIST(YES,DETAIL,DIFF)
#1 QUERY SNAPSHOT (UNIT(811C) DEV(ALL) )
                                                                   TIME APPROX.
SRC     CUU   VOLSER  TGT     CUU    VOLSER  NAME                  YYDDD/HH:MM:SS  STATUS     ACT
----------------------------------------------------------------------------------------------------------
000002A4(N/A ) ...... FFFFFFFF(N/A ) VDG21..........212191237C00009 21219/02:37:09 CREATE SOFT Y
000002A4(N/A ) ...... FFFFFFFF(N/A ) VDG21..........212191201C00006 21219/02:01:11 CREATE SOFT Y
000002A4(N/A ) ...... 000002AC(7011) VDG21..........212191113C00002 21219/01:30:25 LINKED Y 
000002A4(N/A ) ...... 000002AC(7011) VDG21..........212191113C00002 21219/01:30:25 LINKED Y   ** Duplicate of row above **
000002A4(N/A ) ...... FFFFFFFF(N/A ) VDG21..........212191113C00002 21219/01:13:09 CREATE SOFT Y
000002A4(N/A ) ...... FFFFFFFF(N/A ) VDG21..........212191137I00004 21219/01:37:10 CREATE SOFT Y

Cause

When both the SRC and TGT devices are in the QUERY set of devices, the duplicate rows occur.

Two rows are created, one for the SRC device 2A4 and one for the TGT device 2AC.

The rows are sorted by SRC. The report is by SRC, so this causes the two rows to come together and appear as duplicates.

Resolution

The duplicate row is removed on the QUERY SNAPSHOT DEV(ALL) output.

Workaround:  
  • The duplicate row can be ignored. 
Permanent Fix:
  • As of January 24, 2022, for Mainframe Enablers 8.5, Dell Engineering is investigating this issue. A permanent solution is still in progress. Contact the Dell Customer Support Center or your service representative for further assistance and quote this article number.

Affected Products

Mainframe, Mainframe Enablers
Article Properties
Article Number: 000195658
Article Type: Solution
Last Modified: 03 Sept 2025
Version:  2
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