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On Thu, 27 Jun 2013, Ken A wrote:

I'm using dict quota like so:

quota = dict:User quota::file:/[path]/quotas/%u

[path]/quotas/ is a tmpfs.

The idea is to do less work on disk. Other than forcing dovecot to rebuild quotas on a reboot, are there any downsides?

I would say no, but to recalc the quota file might be more difficult that you think, make sure no logins or deliveries or automatic scripts change the content of the mail storage.

Regards,

Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

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On 27.6.2013, at 19.44, Ken A <ka@pacific.net> wrote:

I'm using dict quota like so:

quota = dict:User quota::file:/[path]/quotas/%u

[path]/quotas/ is a tmpfs.

The idea is to do less work on disk.

There are no fsync() or fdatasync() calls to quota files. Ideally if the system had enough memory and the disk IO wasn't used up all the time, it wouldn't waste any time on unnecessary disk writes. Now, whether the current OSes worked that way I don't really know.. I think there are quite a lot of settings for that though. Placing quota files (and maybe indexes) on a different mount point would allow changing such settings.