Am Donnerstag, 17. November 2011, 22:30:07 schrieb Andy Robbins:
We are currently experiencing performance issue with our Dovecot system which we believe is caused by excessive writes to the dovecot files. The confusing thing is that we are seeing more writes than reads on our Dovecot volume when you would assume that most of the IO should be reads from customers checking their mail.
Yes, but your read-requests are answered from your local kernel-buffer / cache and aren't really read from your hard-disk.
(At least if you have enough free memory for a cache, that's large enought.)
Incoming mails ARE written on the disk, but read later on just from your cache.
Peer
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