Correction, I should have said, "... you can recover by IPLing on the A-side." 



On Wednesday, May 5, 2021, 5:13:28 PM EDT, Mark Waterbury <mark.s.waterbury@xxxxxxxxxxxxx> wrote:

Steve,

When the system is not managed by an HMC, the operating system takes care of updating the firmware as needed with certain PTFs.

What is shown for "Server IPL Source" on that WRKFMWSTS panel? e.g. is the machine running on the "A-side" or the "B-side"?  A=Permanent, B=Temporary

This concept applies to all PTFs that apply to the "LIC" (SLIC) kernel, and also to "firmware" PTFs.  (These are normally MFnnnnn PTFs.)

When PTFs are applied, they are always applied to the "temporary" copy of the SLIC kernel first, that way, if something really bad happens, you can recover by IPLing "on the B-side" (a B mode IPL), to take steps to recover.   If a bad PTF is installed, you can "un-install" it with RMVPTF, as long as it is still in "temporary" status.  Once it is applied "permanently" it moves to the "A-side" and cannot be removed (except by restoring the entire system from back-up tapes ...)

Hope that helps.

All the best,

Mark S. Waterbury


On Wednesday, May 5, 2021, 3:51:41 PM EDT, Steve Pavlichek <spavlichek@xxxxxxxxxxx> wrote:

Working with a customer who has a stand alone system with LAN console. The DSPFMWSTS screen show two different firmware levels, Server and OS.

The *Active copy only displays Server Firmware SV8760_109 but the *TEMP copy show the Server Fix pack is SV860_109 and the OS Fix Pack is SV860_063.

What is the difference and why would they be at different levels?



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