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
