backup mails from alternate storage - all-clear

[Lars Täuber]

Hi again!

"du" was misleading me.
Most files take 10M in filesystem but are actually only some byte or kilobytes in size.
This is the result: 

# du -h --apparent-size
2,1G	.
# du -h
25G	.

So my conclusion the backup misses some messages was wrong.

Sorry for the noise
Lars

Mon, 4 May 2015 13:16:33 +0200
Lars Täuber <taeuber at bbaw.de> ==> dovecot at dovecot.org :
> Hi there!
> 
> It seems that
> # doveadm backup -v backup -fu $MUSER mdbox:"$BKPDIR/$MUSER/mdbox"
> doesn't backup all messages stored in alternate storage.
> 
> mail_location = mdbox:~/mdbox:ALT=/srv/mail/slow/vmail/%n/mdbox
> 
> I don't know how to debug this.
> The sizes of the mailboxes in the filesystems of user C are strange:
> 
> ~/mdbox:
> # du -sm
> 2169
> 
> ALT:
> # du -sm
> 25252
> 
> backup:
> # du -sm
> 2658
> 
> This is with dovecot 2.2.9 on Ubuntu x86_64 14.04.2 LTS.
> Is this a bug or am I doing something wrong?
> 
> How can I test if messages stored in the alternate storage are successfully backed up?
> 
> Thanks
> Lars