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Home -> Community -> Mailing Lists -> Oracle-L -> RE: RE: RE: Stand-by (Oracle9i Data Guard) vs. Replication
Robert,
If I understand your requirements correctly,
You have multiple sites separated geographically ( 200
Miles perhaps..?? ) and you are looking for a highly
available , 'Multimaster' kinda environment.
This kind of setup is common in
oh-don't-say-the-name-companies i.e. 'dot bombs' and
companies with regional offices around the world, with
certain variations.
I think off the top of the top of head I can say
Amazon as an example.
To clear some points before jumping to solutions,
1. Is the critical data would be updated in the
sites..?
2. If yes , are you expecting the other sites to 'see'
this update...?
3. If one site is down, then are you expecting the
other sites to share the load or you have the closest
site in take in all the load...?
Depending upon the answer you have to make a choice.
For example, I notice you have been discussing "RAC"
as a possible solution. In this case ,since you have
multiple sites , which is going to be the Primary..?
or are you proposing to use a "RAC" for each site..?
Wouldn't a third party assisted solution be more
scalable and cost effective..?
Like EMC or HP's XP storage solution has some kinda
'track' or 'Block' replicating mechanism between the
storage, which is extendable in term of geographical
location…?
Or if you are looking to share the load like in question 3 above, then wouldn’t it be easy to Get a ‘replicating’ software to help replicate the data in real time or near real time…? Example , like said before quest software’s shareplex. This can give you master-master replication capabilities.
Just my 2 cents.
Cheers,
RS
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Sakthi , Raj INET: rajan_sakthi_at_yahoo.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Tue Mar 26 2002 - 11:38:00 CST
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