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db2adutl performance

When we are deleting logs in TSM every week, we encounter very poor

performance for deleting > 1000 logs for each DB2 partition. There

are 131 DB2 partitions. Deleting the same amount of logs with dsmc del .

. . . . works much faster. We assume db2adutl deletes log by log

sequentially per DB2 partition. The command is "delete logs older than

<logfile> db <db> dbpartitionnum X without prompting" We

call db2adutl with db2_all per single DB2 partition in configurable

chunks (8 - 16 DB2 partitions in parallel)"

Wanted to know if db2adutl can be multi threaded and can do this operation in parallel?

  • Avatar32.5fb70cce7410889e661286fd7f1897de Guest
  • Aug 27 2020
  • Planned for future release
Who would benefit from this IDEA? Faster product
How should it work?

The question is if db2adutl can delete logs in parallel per

partition as db2_all will send it on all the partitions but it can still

be serial. For "db2adutl delete log older than <logfile>" on one

partition, if logs to be deleted is more than one, db2adutl will delete

them sequentially rather than in parallel, that is, db2adutl will delete

logs one at a time and one by one. If the customer wants db2adutl to

delete logs in parallel, an RFE is an option for them to request this

feature.

Idea Priority High
Priority Justification When this deletion is running with db2adutl the TSM server has such a high load, that regular Log archiving takes very long and is thus generating errors.
Customer Name IBM
  • Attach files
  • Admin
    Michael Roecken commented
    15 Sep 02:35pm

    This idea will look at changing the way we do delete from one by one to batching as many as the TSM server allows.

    If this is not adequate then we will have to look to idea https://bigblue.aha.io/ideas/ideas/DB24LUW-I-994

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