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MQSeries.net Forum IndexMainframe, CICS, TXSeriesCOLD Start to Migrate to v9.1.5 Question

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cicsprog
PostPosted: Tue Apr 12, 2022 9:15 am Post subject: COLD Start to Migrate to v9.1.5 Question Reply with quote

Partisan

Joined: 27 Jan 2002
Posts: 311

I have a customer who's at v8. There isn't a migration path so I'm going to COLD start their MQ's.

My concern for production upgrades are messages left in Q's and not consumed (ya I know get them consumed). I was thinking of using COPY/SCOPY for the Q's that have messages. So couple of scenarios

1) SCOPY/COPY with v9.1.5 version or v8 of the PAGESET's or Q's?

2) Does SCOPY/COPY need the BSDS to maintain consistency? I couldn't find a reference that it does. Since I have to COLD start copying the BSDS contents to v9.1.5 BSDS isn't possible.

3) Just use one various utilities that copy messages to sequential flat files and reload the Q's (you change various MQ Header fields with this approach).

Any suggestions or problems with these approaches?
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hughson
PostPosted: Tue Apr 12, 2022 3:13 pm Post subject: Re: COLD Start to Migrate to v9.1.5 Question Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1852
Location: Bay of Plenty, New Zealand

cicsprog wrote:
3) Just use one various utilities that copy messages to sequential flat files and reload the Q's (you change various MQ Header fields with this approach).

This approach does not need to change the MQ Header fields. Use QLOAD and you will maintain the MQMD and any other headers when you reload the messages.

Cheers,
Morag
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cicsprog
PostPosted: Tue Apr 12, 2022 3:19 pm Post subject: Reply with quote

Partisan

Joined: 27 Jan 2002
Posts: 311

Thanks Morag. I will do that.
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cicsprog
PostPosted: Wed Apr 13, 2022 8:14 am Post subject: Reply with quote

Partisan

Joined: 27 Jan 2002
Posts: 311

Morag

If I copy over the messages in SYSTEM.CHANNEL.INITQ, will that help prevent any SEQUENCE number errors? Thanks for any input!
Jason
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hughson
PostPosted: Wed Apr 13, 2022 1:23 pm Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1852
Location: Bay of Plenty, New Zealand

cicsprog wrote:
Morag

If I copy over the messages in SYSTEM.CHANNEL.INITQ, will that help prevent any SEQUENCE number errors? Thanks for any input!
Jason

No, but the SYSTEM.CHANNEL.SYNCQ will on z/OS.

I suspect you discard any messages on the SYSTEM.CHANNEL.INITQ. Trigger messages will be recreated as required.

Cheers,
Morag
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cicsprog
PostPosted: Wed Apr 13, 2022 2:12 pm Post subject: Reply with quote

Partisan

Joined: 27 Jan 2002
Posts: 311

Gee...that's the Q I meant...I'm loosing it in my old age. Brain Typo!

Thanks Again
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cicsprog
PostPosted: Thu Dec 01, 2022 9:30 am Post subject: Reply with quote

Partisan

Joined: 27 Jan 2002
Posts: 311

Just a FYI...this worked out very well. Converted all their MQMs with no issues.
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bruce2359
PostPosted: Thu Dec 01, 2022 11:39 am Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9306
Location: US: west coast, almost. Otherwise, enroute.

cicsprog wrote:
Gee.. I'm loosing it in my old age.

We dont judge here.
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