SOFT
Specifies a dynamic change to the software I/O configuration, which updates
the I/O configuration only to the operating system. No hardware changes are
attempted. However, you may specify whether hardware validation is requested
(VALIDATE, NOVALIDATE). To change a software and hardware I/O configuration
dynamically, omit the SOFT keyword. When you specify SOFT, you cannot specify
FORCE.
You can specify the following suboptions:
VALIDATE
When you specify SOFT without any parameters, it is the same as
specifying SOFT=VALIDATE. This allows you to specify that the system is to
validate that any specified hardware elements to be deleted are offline and
available, and that there is sufficient HSA space available to accommodate the
hardware changes. When a dynamic change is made to the I/O configuration for a
processor complex running in LPAR mode, a change to the software I/O
configuration is performed for the first N-1 logical partitions, followed by a
hardware and software change for the Nth logical partition. By specifying the
SOFT keyword (or SOFT=VALIDATE) when changing the I/O configuration on the N-1
logical partitions, you can determine early on whether there will be sufficient
HSA space available for the subsequent software and hardware I/O configuration
changes on the Nth logical partition.
NOVALIDATE
indicates that no validation of hardware changes is to be done.
Does that help?
Lizette
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
> Behalf Of John McKown
> Sent: Thursday, July 24, 2014 4:46 AM
> To: [email protected]
> Subject: IODF "soft activate" to "clean up" UCBs after a tape library problem?
>
> We had a problem with our tape library. We are sure exactly what, yet, but
> one CE
> indicated that he _thinks_ it might be a "flaky" fibre switch. The remote
> support
> engineer said that one thing he suggests to do is a "soft activate" (software
> only) of
> the current IODF. I.e. do:
>
> ACTIVATE IODF=nn,SOFT=NOVALIDATE
>
> This is to make sure that the tape UCBs don't have any sort of error status
> in them
> from the z/OS side. What I've always done, in the past, was to vary the SMS
> library
> offline, then back online. I can do this because we only use the ATL,
> physical 3590
> drives, for our disaster backups. These run starting about 06:00 until maybe
> 11:30.
>
> My question is what do the ACTIVATE above do. I've never heard of such a thing
> before. Not that I'm saying it won't do anything, I'm just admitting to
> ignorance.
>
> --
> There is nothing more pleasant than traveling and meeting new people!
> Genghis Khan
>
> Maranatha! <><
> John McKown
>
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