Re: Veritas global replicator
- From: <Paula_Stankus@xxxxxxxxxxxxxxx>
- To: <cjpengel.dbalert@xxxxxxxxx>, <dnt9000@xxxxxxxxx>
- Date: Tue, 28 Jun 2005 07:43:58 -0400
It is my understanding that to have a standby regardless of the tool used you
have to purchase oracle licenses so my question would be why buy a third party
tool when a good solutiion is provided by oracle
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx <oracle-l-bounce@xxxxxxxxxxxxx>
To: dnt9000@xxxxxxxxx <dnt9000@xxxxxxxxx>
CC: oracle-l@xxxxxxxxxxxxx <oracle-l@xxxxxxxxxxxxx>
Sent: Tue Jun 28 03:30:02 2005
Subject: Re: Veritas global replicator
David,
Are you using Data Guard now? Or are it just the specs that pleas you?
If you are using Data Guard: what requirements not met make you think of
something else? It depends severely on your requirements what solution will
suit you.
When you have unlimited bandwith and zero latency, storage replication might
help, otherwise I do not know of a product/solution that is less demanding
(bandwidth, resources on primary) whilst more offering (delayed redo
application, opening for read/only) than Data Guard. A drawback can be the
licensing issue, the standby needs to be fully licensed.
Storage replication needs to forward redo (redundant), datafiles and archives,
often on a less granular scale than just plain disk blocks. Data Guard/hot
standby just sends the redo. A delay in archival application has saved some of
my customers quite nicely from a lot of work.
Find out your needs first. Make an inventory of causes for outages and
disasters first, then decide how to deal with them (or not if that is too
expensive. Let the mgmt. decide about that, don't take that burden yourself).
High Availability shouldn't be driven by nice (read: well-marketed) products,
but by requirements and good solutions.
Best regards, Carel-Jan
On Tue, 2005-06-28 at 00:03, David Turner wrote:
Has anyone used veritas' global replicator? We are
will be comparing it with Oracle Dataguard and I was
curious if anyone could point me to good info on it or
tell me your experience with the product? So far I've
been pleased with Dataguard.
Also if there are other products you recommend more
for georedundant failover that would be appreciated.
Thx, Dave
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