changing HDR dbserver names

IDS 10.00.UC5 on RHEL3 2.4.21 kernel Is it possible to change the dbserver names used for HDR without reinitializing HDR? For example, a while ago I initialized HDR like so: physical restore of serverB from backup of serverA onmode -d primary serverB onmode -d secondary serverA Now if I want to move the HDR communication to a dedicated network, is there a way to modify the paired server names from serverA and serverB to serverA_hdr and serverB_hdr without completely reinitializing HDR by performing a restore and running the onmode -d primary serverB_hdr and onmode -d secondary serverA_hdr commands? serverA and serverB will still exist so I can't simply modify the sqlhosts move the HDR communications to a different network. Thanks, Andrew

Andrew Ford wrote: > IDS 10.00.UC5 on RHEL3 2.4.21 kernel > > Is it possible to change the dbserver names used for HDR without > reinitializing HDR? > > For example, a while ago I initialized HDR like so: > > physical restore of serverB from backup of serverA > onmode -d primary serverB > onmode -d secondary serverA> > Now if I want to move the HDR communication to a dedicated network, is there > a way to modify the paired server names from serverA and serverB to > serverA_hdr and serverB_hdr without completely reinitializing HDR by > performing a restore and running the onmode -d primary serverB_hdr and > onmode -d secondary serverA_hdr commands?> > serverA and serverB will still exist so I can't simply modify the sqlhosts > move the HDR communications to a different network. serverA & serverB the machines will still exist or serverA & server B the IDS servers will still exist? If only the machines will still be there, you just change the sqlhosts entries so the new servers have the same names but different host machines. Even if the IDS servers still exists, as long as the new servers don't have to 'talk' to the old ones, they can have a DBSERVER alias defining the old names and you can still change the sqlhosts entries on each to point to the other by the old name. This is only a problem if two servers with the same name need to speak to each other or if some clients (meaning specific tasks) need to be able to see both the old and new servers. (Even different tasks on the same client box can be fooled this way by using INFORMIXSQLHOSTS to point each to a different sqlhosts file.) Art S. Kagel

Andrew Ford wrote: > IDS 10.00.UC5 on RHEL3 2.4.21 kernel > > Is it possible to change the dbserver names used for HDR without > reinitializing HDR? > > For example, a while ago I initialized HDR like so: > > physical restore of serverB from backup of serverA > onmode -d primary serverB > onmode -d secondary serverA> > Now if I want to move the HDR communication to a dedicated network, is there > a way to modify the paired server names from serverA and serverB to > serverA_hdr and serverB_hdr without completely reinitializing HDR by > performing a restore and running the onmode -d primary serverB_hdr and > onmode -d secondary serverA_hdr commands?> > serverA and serverB will still exist so I can't simply modify the sqlhosts > move the HDR communications to a different network. serverA & serverB the machines will still exist or serverA & server B the IDS servers will still exist? If only the machines will still be there, you just change the sqlhosts entries so the new servers have the same names but different host machines. Even if the IDS servers still exists, as long as the new servers don't have to 'talk' to the old ones, they can have a DBSERVER alias defining the old names and you can still change the sqlhosts entries on each to point to the other by the old name. This is only a problem if two servers with the same name need to speak to each other or if some clients (meaning specific tasks) need to be able to see both the old and new servers. (Even different tasks on the same client box can be fooled this way by using INFORMIXSQLHOSTS to point each to a different sqlhosts file.) Art S. Kagel

On Tue, 2 Jan 2007 15:39:44 -0600, "Andrew Ford" <aford@networkip.net> wrote: >IDS 10.00.UC5 on RHEL3 2.4.21 kernel > >Is it possible to change the dbserver names used for HDR without >reinitializing HDR? Add DBSERVERALIAS and corresponding entries in sqlhosts?? JWC