[Dovecot] Howto add another disk storage
patrickdk at patrickdk.com
Mon Jul 9 02:24:15 EEST 2012
Quoting Wojciech Puchar <wojtek at wojtek.tensor.gdynia.pl>:
>> is random seek latency. And the faster the spindle, the lower the
>> latency. Thus 15k Seagate SAS drives are excellent candidates for mail
>> store duty, as are any 10k or 15k drives.
> definitely not counting by $/IOPS rate. even worse looking with $/GB
> which is more important unless you make <1GB mail account.
It largely depends what type of users your supporting.
One system, I have 300 users, and it have an load on the drives of
>500 iops a lot, need 8disk raid10 to support the load, about 300gigs
worth of email.
Another system, has 10's of k of users, storage of about 2tb and
normal usage of about 7k iops.
Both of these systems have a 10gig limit per user account. I find most
of the time users don't max out the mailstore, unless they stop using
So in both of my cases, $/IOPS is much more important than $/GB, as
the GB just goes to waste.
More information about the dovecot