Host Expert wrote:
Hi,
Ok, thanks for comments.
How effective is ZFS ? I mean yeah, even Windows has file system compression... And what ? Is very poor...
sorry but that's just arrogance over ignorance (sigh). windows NT compression is robust, has been available since NT4.0 - i.e. about 10 years now, and depending on your app needs, an excellent trade-off for those who need it. the last time i checked, about 2% additional IO load for a busy fileserver with ext RAID5 array - i.e. 4000+ active smb sessions & around 1.3 overall compression factor.
i do not recall any compression-related issues (either in corruption, or in performance) in about 5 years of managing 500 0.5Tb+ boxes. you'll notice a little more pressure during backup however...
Question is, what mailserver would be best to run with Solaris/ZFS ?
Cristian
with a question like that I am sure you'll get as good an answer as your "poor performance" comment deserved.
question is, what are your needs? on a dovecot list, i'd imagine the answer is already a forgone conclusion :-)
is compression is done on the fly at the disk block level, then you lose a small % of CPU, but hopefully gain some back by reduced disk IO. you'll need to do extensive testing to see if _your_ situation really gains from this.
scorch
out of the frying pan & into the fire