Re: Tape Drives Do Not Vary On at IPL

[Justin Taylor <jtaylor.0ab@xxxxxxxxx>]

We manually vary on tape devices in QSTRUP.  This was per IBM support in
2014.


date: Thu, 12 Aug 2021 19:31:43 +0000
> from: "Steinmetz, Paul via MIDRANGE-L" <midrange-l@xxxxxxxxxxxxxxxxxx>
> subject: Tape Drives Do Not Vary On at IPL
>
> Last several IPLs, I've been noticing that not all tape drives are
> reporting in properly.
> This is turn caused a following dedicated system save to fail -  Minimum
> number of resources not available.
>
> IBM support is suggesting I set the library device, TAPMLB01, Online at
> IPL to *NO, and vary on manually in my QSTRUP pgm.
>
> https://www.ibm.com/support/pages/node/644039
>
> Resolving The Problem
> With the advent of faster processors in the IBM System i products, IPL
> times are becoming shorter and shorter. As a result, some tape drive
> resources have not reported into the Hardware Service Manager (HSM) in
> Service Tools by the time the system is ready to VARY ON the tape or tape
> library device description. This can occur even though the device
> description has ONLINE AT IPL (ONLINE) set to *YES. This may result in
> CPD26D6 and CPD27EF messages being issued during the IPL. Tape drive
> resources under the tape library description may have a status of
> DEALLOCATED.
>
> Anyone in the group experiencing similar issues.
>
>
> Thank You
> _____
> Paul Steinmetz
> IBM I Power9 Administrator
>
> Pencor Services, Inc.
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