[linux-lvm] JFS or XFS
austin at coremetrics.com
Thu Jan 15 22:38:01 UTC 2004
On Thu, 2004-01-15 at 17:33, Greg Freemyer wrote:
> On Thu, 2004-01-15 at 18:22, neuron wrote:
> > reiserfs, guaranteed personally. Especially on a mail server.
> I agree, reiserfs was tuned for handling lots of small files. Sounds
> perfect for a mail server.
Many tests prove this to be true as well. Search on google for what
Greg's saying. Lots of benches out there to see.
> > Personally I haven't had any problems with XFS though, but I haven't
> used it that much.
> If you go with XFS, stay away from anything older than 1.3.1.
Not to mention 1.3.x is when the xfslogd and xfsdatad were finally
implemented. I noted this in my prior email regarding tunable log
> The 1.2 and prior releases had this really nice feature that they
> ignored the sync command (and fsync I think).
It wasn't ignored, just not paid attention too as often it should've
> The end result is that with a power outage or kernel lockup you could
> lose lots of work. I had one failure on a lightly used machine that
> a whole days activities still sitting in the OS disk cache when the
> kernel locked up.
Depending on how often a system might sync()/fsync() this is true. As
well as any FS options you use for mounting XFS volumes regarding
log-buffers, io buffers, etc.
> This is fixed in 1.3.1,
Yes, much better now. Still, even with JFS or EXT3, as I noted before,
certain AbEnds will cause meta data to be lost. This is more a function
of hardware caching in a non-backed state, such as large cache buffers
of some drives 8MB drive cache, etc. (i.e. no battery backed up cache)
Austin Gonyou <austin at coremetrics.com>
More information about the linux-lvm