Sorry if this is a dup, don't know what happened to my last post. On Tue, 12 Aug 2008 14:06:50 -0500, Jim Marshall <[EMAIL PROTECTED]> wrote:
> The recommendation now is always have the zFS file >system mounted to the LPAR where TWS is operating (otherwise TWSE2E will >eat your lunch, dinner, etc). When we switched TWS's zFS file system back to >the TWS LPAR, the CPU consumption dropped to almost nothing. > This is an issue for any application that is used in a shared file system environment if the file system is mounted r/w. It should always be owned by the system that does the majority of the access. >I can understand the recommendation and now it places some considerations >to ponder: > > 1. When a TWS LPAR is taken down the ownership of its zFS file system is >automagically transferred to some other LPAR and it is not your choice which >one (another interesting discussion could follow this line). You can specify a list of systems (at one time you had to). >So when the TWS >LPAR is IPL'ed, operationally one must ensure the proper commands are issued >to bring back ownership of TWS's zFS file system. > > 2. One can implement all of #1 in "Automation" if one is running some sort >of automation package; a good case for getting one. > Correct. We do this at IPL time where appropriate. > 3. Keep in mind this is not a Parallel Sysplex problem but a zFS challenge. > Not a zFS challenge, a shared file system challenge (which includes HFS). Regards, Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[EMAIL PROTECTED] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.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
