Re: Are multiple transaction logs used concurrently or sequentially?

From: Wayne Snyder (wayne.nospam.snyder_at_mariner-usa.com)
Date: 10/27/04


Date: Wed, 27 Oct 2004 08:21:50 -0400

The way the SQL Logs work is sequential... Even if you have 5 logs, SQL is
only using one at a time, writing serially to the end of the file... So
having multiple files does not improve performance.

Mirroring is probably the best way to get redundancy on the logs, and it is
a best practice that I suspect most people follow.

There is some file mirroring software out there ( I can't remember the
company ) that keeps files in sync real-time, and they claim this works with
SQL as well...

-- 
Wayne Snyder, MCDBA, SQL Server MVP
Mariner, Charlotte, NC
www.mariner-usa.com
(Please respond only to the newsgroups.)
I support the Professional Association of SQL Server (PASS) and it's
community of SQL Server professionals.
www.sqlpass.org
"fumanchu" <leondobr@verizon.net> wrote in message
news:rjvtn0tjdv3afv74bv33t3k9ueng4fg7ml@4ax.com...
> It'd be nice to have redundant transaction logs, maybe even one on a
> mapped drive, but I read in one post here that SQL Server considers
> all transaction logs to be one big log file. Is this true?
>
> Is there any way to have redundant transaction logs without mirroring>


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