I'm not sure why Barbara is so opposed to AUTOIPL in principle, but I can see where critical production might be problematic. On the other hand, I've seldom seen a system truly hang (from XCF's point of view) for an extended period and then miraculously recover. The 'extended period' is user-defined based on settings in the SFM policy. You can set a very long hang time if you're concerned about premature system whacking, but IBM has long maintained that a near-death sysplex experience is (most?) often resolved by expeditious re-IPL. That is, outage to the client may well be less in the long run than with the time honored tradition of conference calling everyone up to the CIO for concurrence.
Also to clarify: there is a REIPL option on the VARY XCF OFF command. This is very useful when you just want to bounce a system for whatever reason. No delay, no switching sysres volume. This option is totally separate from AUTOIPL, which is intended to repair a sick system while getting doc on the problem, all without manual intervention. . . JO.Skip Robinson SCE Infrastructure Technology Services Electric Dragon Team Paddler SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile [email protected] From: Edward Jaffe <[email protected]> To: [email protected] Date: 09/30/2011 10:42 AM Subject: Re: AUTOIPL (was Re: Health Check (IBMSVA,SVA_AUTOIPL_DEFINED) Sent by: IBM Mainframe Discussion List <[email protected]> On 9/30/2011 10:17 AM, Mark Zelden wrote: > On Fri, 30 Sep 2011 00:11:07 -0500, Barbara Nitz<[email protected]> wrote: > >> Let's see if the rest of the autoipl function is as bad. > Use it, love it. Long time coming... VM has had a reipl option "forever". Just to clarify: although the results appear similar, what z/VM has done 'forever' is not actually a reIPL. z/OS is using a relatively new System z hardware function that reIPLs the LPAR. This is a _real_ IPL! z/VM was simulating that by shutting down (almost completely, but not quite) and then branching back to the top of the code from within the _same IPL_ as understood by the hardware. -- Edward E Jaffe ---------------------------------------------------------------------- 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
