From: Brian Candler <B.Candler@pobox.com>
To: David Fuller <dfuller@epoch.com>
Cc: xfs@oss.sgi.com
Subject: Re: Fragmentation Issue We Are Having
Date: Fri, 13 Apr 2012 08:19:05 +0100 [thread overview]
Message-ID: <20120413071905.GA823@nsrc.org> (raw)
In-Reply-To: <CADrkzi=JNsbXJHkcb=oOZHLEYMBDUkNHu9O8JFT9h+kSArL47A@mail.gmail.com>
On Thu, Apr 12, 2012 at 05:09:40PM -0700, David Fuller wrote:
> The total LVM volume group is 4.5 TB. The logical volume is around
> 2.3TB where the mysql data
Hence you have a 2.3TB XFS filesystem? You need inode64. The side warning
"performance sucks" is very true. In particular, if you create a bunch of
files in the same directory, without inode64 XFS will scatter the extents
all over the disk rather than trying to allocate them next to each other
(possibly not a problem if you're only storing mysql data chunks though)
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next prev parent reply other threads:[~2012-04-13 7:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-12 1:04 Fragmentation Issue We Are Having David Fuller
2012-04-12 2:16 ` Dave Chinner
2012-04-12 2:55 ` David Fuller
2012-04-12 4:24 ` Eric Sandeen
2012-04-12 7:57 ` Brian Candler
2012-04-13 0:09 ` David Fuller
2012-04-13 7:19 ` Brian Candler [this message]
2012-04-13 7:56 ` Dave Chinner
2012-04-13 8:17 ` Brian Candler
2012-04-17 0:26 ` Dave Chinner
2012-04-17 8:58 ` Brian Candler
2012-04-18 1:36 ` Dave Chinner
2012-04-18 9:00 ` Brian Candler
2012-04-19 23:12 ` Dave Chinner
-- strict thread matches above, loose matches on Subject: below --
2012-04-19 19:54 Richard Scobie
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