Oracle and High Availability solutions

From: <Steve.Parker_at_lis.co.uk>
Date: Mon, 8 May 2000 10:19:09 +0100
Message-Id: <10491.105145@fatcity.com>

Dear All,

Consider High Availability (HA) Oracle systems, i.e UNIX and MC/ServiceGuard / TruCluster / HACMP etc where the Oracle database and binaries are held on a 'highly resilient' shared disk array which can be
accessed from 2 or more servers.

When either the HA Service providing Oracle is gracefully 'bounced' from one
server to the other, or is restarted on an alternate server due to the main server
crashing etc, is it true to state that only one server at any one time is accessing
( or can access ) the Oracle database.

Oracle parallel server is NOT being used !

In all cases, 'simple' scripts are used by the HA Service to stop and start Oracle,
which normally mimic what an operator would do anyway.

I would have thought that 2 sets of binaries accessing the same database would have disatrous consequences.

Any thought / experience / comments please .....

Thanks

Steve Parker Received on Mon May 08 2000 - 04:19:09 CDT