""Tom Rusnak"" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Greetings Mark Thomen and all, > > I'm in the process of tuning our catalogs. In looking at the results of a > F CATALOG,REPORT,PERFORMANCE command I see a huge difference in the amount > of time to process a BCS ENQ between systems in a GRS-plex and those that
> are not in a GRS-plex. > > With the two systems I have in the GRS-plex I see ENQ and DEQ overhead in > the 6-8 msec range such as these values on one of those systems: > > -----CATALOG EVENT---- --COUNT-- ---AVERAGE--- > Entries to Catalog 2,347K 36.096 MSEC > BCS ENQ Shr Sys 4,024K 6.941 MSEC > BCS ENQ Excl Sys 76,131 6.868 MSEC > BCS DEQ 6,080K 6.638 MSEC > Are you running ISGAUDIT? If so, this can increase the time taken for an ENQ/DEQ. Also, are you using RESERVEs? The SYSIGGV2 should be in the Exclusion RNL unless you are sharing a catalog outside the sysplex, in which case you MUST use RESERVE. The time shown is the time it takes to do the actual events (i.e. ENQ/DEQ). It is not affected by time that Catalog is processing. I would strongly recommend you switch to VLF, as it makes a significant difference. Thanks, Mark Thomen Catalog/IDCAMS/VSAM Development ---------------------------------------------------------------------- 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
