Reply to Re: mirrored sql servers

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Posted by Erland Sommarskog on 11/04/05 01:11

GB (v7v1k3@hotmail.com) writes:
> I have 2 MS SQL Servers 2000 Developer edition.
> Both have same settings and databases. I'd like to have them as mirrored
> servers - all transaction on one server must be performed on the other
> automatically. More than that I'd like to get possible if something
> happened to one server, all transactions will be performed on another
> one.

Symmetric or one-way? If one server is a main server, and the other is a
standby server, you can use either log shipping or transactional
replication. Log shipping is easier to manage, as transactional
replication leaves its mark on the source database. On the other hand,
the standby server will not be accessible each time a log is applied,
and the lag time is longer.

If it is symmetric, that actions are to be replicated in both directions,
then you may want to look into merge replication. But this sounds anything
about trivial to me. What about if the same row was updated in both
databases? Who wins?


--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techinfo/productdoc/2000/books.asp

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