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#SFMySQL Meetup Message Board › XFS mount settings

XFS mount settings

Ashley M.
user 10165795
Pleasant Hill, CA
Post #: 1
Hello everyone,

I'm setting up some new database machines and am going to use XFS to solve a problem we were seeing with ext3, however I don't have a lot of experience with the XFS mount options. Sooo I was wondering if people in the group have example mount options for a heavily used DB. If you have different options for your binlog mount from your DB mount then please specify which is which.
Robert S.
Oakland, CA
Post #: 1
Check out the Linux Optimization presentation from the last MySQL Conference.

A couple relevant notes I took from that presentation:

  • Use BBWC on raid cards. Then, disable write cache on disks.
  • Don't set write barrier if using BBWC
  • Facebook moved from ext3 to xfs. ext3 very slow to delete large files. Makes dropping large table slow.
  • With xfs, disable write barrier with "nobarrier". Concurrent writes possible with O_DIRECT
  • Fusion SSD cards are 2-3 times faster than Intel SSD cards and 10-20 times faster than HDD. Fusion cards really benefit from xfs.

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