on 10-28-2013 1:32 PM
Hello,
I have to do a migration from solaris sparc to solaris intel, i have to migrate several replication servers and dataservers.
At the same time, I'm migrating from ASE 12.5.4 2K pages to ASE 15.7 4K pages.
1. Configuration A
==============
I started with the following configuration :
ASE 12.5.4 servers ASESERVER_a and ASESERVER_b
(servers running on solaris sparc, with page size 2K)
REP 15.2 servers REPSERVER_a and REPSERVER_b
with a bi-directional route between REPSERVER_a and REP_SERVER_b.
REPSERVER_a manages databases from dataserver ASESERVER_a,
REPSERVER_b manages databases from dataserver ASESERVER_b.
I have bi-directional (through MSA) replication from ASESERVER_a to ASESERVER_b (and vice versa) :
ASESERVER_a <---> REPSERVER_a <----> REPSERVER_b <----> ASESERVER_b
repserver REPSERVER_a is the ID Server.
2. Configuration B
==============
Then I added a 3rd dataserver ASESERVER_c (ASE 15.7, 4K pages on Solaris Intel)
and replication server REPSERVER_c.
I added bi-directional routes to the other two repservers
and added bi-directional replication of the databases also to ASESERVER_c.
The configuration is completely symmetrical : each dataserver can become the active node and replicate to the other two (standby/passive) servers.
3. Configuration C
==============
Dataserver ASESERVER_c is now the active server, ASESERVER_a and ASESERVER_b are standby servers.
I want to replace ASESERVER_a by a server which also runs on 15.7, solaris Intel, 4K pages.
in other words, I want to destroy ASESERVER_a, create a new server and synchronize the data via dump/loads from ASESERVER_c.
I also want to move REPSERVER_a to solaris intel.
The cleanest way would be to remove the replication to ASESERVER_a from the system and also remove REPSERVER_a, so that only b and c are left. Then I can add a new repserver on the correct platform, and rebuild replication to ASESERVER_a.
The only problem is that REPSERVER_a is the ID Server.
Is there a way to change the id server to REPSERVER_c ?
If not, the only alternative I see is to create a new repserver on solaris intel, copy content from REPSERVER_a to the new server and than restart the new server as REPSERVER_a. This adds also the difficulty of dealing with the stable queues.
Or do you see another solution ?
Thanks,
Luc.
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