A database running on a single RAID 1 device on a 2 CPU Dell with ext3 on
linux
is still faster than a database running on a similarly configured Dell box
with
windows 2000, and several RAID 10 devices.
No kidding.
Jared
Mladen Gogala <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
06/29/2003 11:14 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: Re: Filesystem for Linux production database server?
Linux file systems usually do not support direct I/O (bypassing the buffer
cache), which means that you're going to have double caching with almost
everything except raw devices. You can have up to 256 raw devices on a
Linux
box and if your database is small enough (32-bit system, 2G limit
applies),
that will definitely be the fastest option. My recommendation is to go
with
IBM JFS because it is a battle tested, mature, well performing file
system. I
would advise against XFS because nobody uses it.
As for availability, you'll have to go with some RAID controller and
standby
database or RAC. In case of RAC, your choice of file systems is clear
(OCFS).
Whatever you do, do not configure your RAID as RAID-5 but RAID 1+0 (BARF).
which means that
On 2003.06.29 11:44, zhu chao wrote:
> Hi, friends that run oracle on linux:
> We are running some database on linux, some with UPS protection and
some
> not, all using ext2. Currently we have a DW server running oracle
817/Redhat
> 7.2/Ext2. When server crash because of power supply, fsck took rather
long
> time!
> And we are planning migrate to redhat as2.1/9.2, and I am thinking
of
> what kind of filesystem shall I choose for the new server. The database
is
> about 150G.I had planned to use ext3 for it is journal filesystem, But
> according to http://www.linuxjournal.com/article.php?sid=5841, ext3 is bad
> for performance, and some friend said he hit filesystem crash with ext3.
> So,what is your experience using filesystem for oracle in linux?
> Performance and avaliability is of most important.
> Thanks.
>
>
> Regards
> zhu chao
> msn:[EMAIL PROTECTED]
> www.cnoug.org
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> Author: zhu chao
> INET: [EMAIL PROTECTED]
>
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--
Mladen Gogala
Oracle DBA
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