Hi Mark, Thanks for the reply. I have switched to VLF with great results so far.
I am still bothered by the amount of time spent in ENQ/DEQ and I used a GRS monitor yesterday to try and gain some insight. On a system with all the catalogs defined with shareoptions(3,4) all the ENQs for QNAME(SYSIGGV2) are SYSTEMS as we all would expect, and that comes with the expected overhead of GRS communicating with the other system. On the system with the catalogs changed to shareoptions(3,3), ENQs of this format: QNAME(SYSIGGV2) RNAME(user.dataset.name) Have been changed to a local ENQ (SYSTEM). However, ENQs for the catalog: QNAME(SYSIGGV2) RNAME(user.catalog.name) continue to be global ENQs (SYSTEMS). I would have expected these to be local as well, but I'm guessing that there must be an integrity issue with doing that. My user catalogs in the GRS-plex are all on volumes that are only online to one system. Therefore I'd be comfortable with adding the following to the RNL Exclusion list: RNLDEF RNL(EXCL) TYPE(PATTERN) QNAME(SYSIGGV2)RNAME(CATALOG.???CAT*) Note that pattern does not cover my one shared catalog that is still Shareoptions(3,4). I have found information in a GRS manual which seems to tell me that this is a valid RNL entry for un-shared catalogs in a GRS-plex. Unless I hear horror stories to the contrary, I will give this a try on the weekend, and report back any overhead reductions. Thanks, Tom > >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 >======================================================================== ---------------------------------------------------------------------- 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
