change server's

Greetings to the list, we now have in the company Informix 10.x HDR on AIX 5.x

* The primary server is a pSeries 510 and is in the seat A
* The server side is a pSeries 570 and east on the seat B (5000 km)
* The HDR is done by Internet 1MB

My query is as follows:

* I want to change the primary server pSeries 510 with a new pSeries 570 server without breaking with the HDR.


I would appreciate can send suggestions.

Greetings

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I don't think you can do it without a little downtime, and some breaking of
HDR.

Assuming you don't want to run the live service the the old p570 for any
length of time here's how I'd do it:

- Implement the new p570
- Restore a backup of the live database to the new p570 with ontape -p
- break HDR between the p510 and the old p570
- establish HDR between the p510 and the new p570
- reverse the direction of HDR so that the new p570 becomes the primary and
the p510 becomes the secondary
- shutdown the p510
- change the sqlhosts on the old HDR to tell it that the primary Informix
service is now on the new p570 and bring it up

Should be just one live downtime, plus some periods when HDR is inactive.

Might be easier in IDS 11 with RSS; I don't know.