Yes, but caught us on 1.10 upgrade, and took quite a while to diagnose it
was this that was causing the GRS uplift.  NOZFS did calm things down.


On 22 September 2010 20:57, Lizette Koehler <[email protected]> wrote:

> We have been seeing GRS being 3 times higher after our z/OS V1.11 upgrade.
>
> I have found APAR OA33049 which seesm to apply
>
>
>  After activation of RSU 0910 the cpu consumption of the GRS
>  address space increased by a factor of two.
>
>
>  LOCAL FIX:
>  Disable in RMF III the data gathering for ZFS, i.e.
>  F RMF,F III,NOZFS.
>
>
>  PROBLEM SUMMARY:
>  ****************************************************************
>  * USERS AFFECTED: zFS Releases HZFS390                         *
>  *                 and HZFS3A0 and HZFS3B0                      *
>  ****************************************************************
>  * PROBLEM DESCRIPTION: HIGH CPU CONSUMPTION OF GRS             *
>  *                      ADDRESS SPACE WHILE RMF III             *
>  *                      OPTION IS ON                            *
>  ****************************************************************
>  * RECOMMENDATION:                                              *
>  ****************************************************************
>  RMFGAT passed an fsid_mtname on a pfsctl
>  for FSOP_GETSTAT_PARMDATA, causing
>  find_owner() to make unnecessary calls to
>  grs_enq_query()....
>
>
>  PROBLEM CONCLUSION:
>  Modify agsys_send_query_filesys_owner
>  to use fsid name or fsid aggrname or
>  fsid mtname.
>
>
> Has anyone else seen this?
>
> Lizette
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [email protected] with the message: GET IBM-MAIN INFO
> Search the archives at http://bama.ua.edu/archives/ibm-main.html
>

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to