 | | | Filesystems 2007 | Filesystems 2007 2007-03-22 - By Michael Taylor
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I see on the following Metalink Note 414673.1 that both ext3 and XFS are Suse
provided filesystems that support both Asynch and Direct I/O on SLES-9 (See http://LES-9.ora-code.com) and SLES
-10 on 10g databases.
I recently lost a resierFS filesystem to reiserfsck --rebuild-tree when tons of
reiser kernel cannot stat errors started showing up in /var/log/messages. A
colleague of mine had the same thing happen to him recently and said he did
warn me about reiserFS. I used the manufacturer's CD to run a low level
diagnostics of the drive, and there were no bad sectors or any other problems
found.
I am looking for a stable, high performance filesystem for hosting 10g Oracle
Applications databases, but may also host the Applications tiers which consist
nearly 1 million files per instance.
Are there formatting options that people use when creating ext3 or XFS
filesystems for Oracle that seem to improve performance? In my testing using
the default formatting options comparing ext3 and reiserFS filesystems
belonging to the same LVM groups, read speeds were comparable, but reiserFS was
2x faster on writes in Iozone benchmarking. Most write intensive ERP jobs took
longer on ext3 as well. Online LVM resize was pretty cool as well.
I have come down from my ReiserFS soap box since the filesystem has gone into
maintenance mode and I was burned last week. I am just wondering what the
community's comments on this topic would be with reiserFS out of the picture.
Thanks,
Michael
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