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Re: best practices WRT resizing a MDB backend?

--On Thursday, August 21, 2014 10:53 PM -0400 Brian Reichert <reichert@numachi.com> wrote:

On Thu, Aug 21, 2014 at 03:55:09PM -0700, Quanah Gibson-Mount wrote:
Zimbra already does all of these things using writemap.  You could look
at  what we've done in relation to this.  But I agree with Howard,
there's  generally little advantage to downsizing the writemap.

Ok, noted, downsizing is not an appropriate tactic.  That means
making a reasonable good guess to start with, something short of
'use the whole disk'.

You've suggested writemap in response to other questions I've asked
on this list; I think I shall take the hint. :)

Is your OS a BSD or Linux?

Last time I tried on BSD, it didn't use sparse files with writemap like Linux does. It just made a massive file on disk of the size specified for the maxsize. I.e., BSD didn't correctly support sparse files with writemap.



Quanah Gibson-Mount
Server Architect
Zimbra, Inc.
Zimbra ::  the leader in open source messaging and collaboration