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Status Not under consideration
Workspace z/OS
Categories DFSMS Catalog/IDCAMS/AMS
Created by Guest
Created on Mar 30, 2018

RELATED IDEAS

Please change behavior of IDCAMS utilitty ALTER commands

If IDCAMS ALTER detect that backpointer to catalog points is not user intended one.
then ALTER issue some WARNING or INFORMATION message.

<User case>

<<Background>>
User used IDCAMS DELETE to delete VSAM but got below message:
IDC3009I ** VSAM CATALOG RETURN CODE IS 50 - REASON CODE IS IGG0CLFL-88
IDC0551I ** <<vsam name>> NOT DELETED

then he did IDCAMS PRINT to the VVDS which the VSAM is placed on, and confirmed that backpointer did NOT point to user intended one but wrong one.
(User intended catalog "A" but VVDS has entry of catalog "B")

This situation is described in IBM manual "DFSMS Access Method Services Commands"-"DELETE"-"SCRATCH operands"
-----------------------------------------------------
Note:
If the VVDS indicates that the data set is owned by a catalog other than that catalog identified through the usual catalog search order for DELETE, a DELETE NOSCRATCH is done against the catalog that resulted from the catalog search, and a zero return code is returned to the user
-----------------------------------------------------
So IDCAMS DELETE checks this situation.

But user did IDCAMS ALTER RENAME for this VSAM one week before DELETE,
Then IDCAMS ALTER completed without any error or warning.
It means IDCAMS ALTER don't check this situation.

I think IDCAMS ALTER should check this situation then give user to some information.

Idea priority Medium
  • Guest
    Reply
    |     Feb 5, 2024
    This item is a valid requirement but unlikely to be given high enough priority to be placed into the product plan. If this requirement is high value, please re-open it, or open a new requirement.
  • Guest
    Reply
    |     May 5, 2023

    It would be nice if IDCAMS ALTER did check the alias of the new target name and recatalog the dataset to the relevant target name catalog, such as with an ISPF rename. So many people get caught out by this, wondering where their datasets have disappeared to, leaving support to sort it out. Often they'll just create another dataset and leave an orphaned one which create other issues.
    But even if the newname alias points to the same catalog you can still have an issue where the new named dataset is now in the wrong Storgrp for datasets of that name. We encourage Users to COPY rather than rename datasets in place for this reason.

  • Guest
    Reply
    |     Feb 13, 2023
    .The catalog back pointer is used only to confirm that the correct entry is being deleted. Alter does not do this check because the user has the ability to change the entry, in this case, rename it.

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