Are directory operations synchronous with XFS?

["Hans Kratz" <kratz@xxxxxxxxxxxx>]

Hi!

Most mailers require that directory operations on their mail queue
directories such as link()'ing and unlink()'ing are synchronous in order to
ensure that mail is not lost in a power failure or server crash.

Thus it depends on the filesystem on which the mail queue resides if mail
delivery is safe. ReiserFS for example does not perform synchronous
directory operations out of the box.

More information can be found at
http://cr.yp.to/qmail/faq/reliability.html#filesystems or at
http://www.reiserfs.com/faq.html#qmail

How about XFS? Is it safe to run a qmail queue on an XFS filesystem?

Thanks for your answer.


Best regards,

Hans
--
Hans Kratz
phone: +49 721 9 37 58 40
fax: +47 721 9 37 58 46