[Dovecot] 76Gb to 146Gb

Michescu Andrei andrei.michescu at miau.ca
Mon Sep 24 21:01:33 EEST 2012


Hello Spyros,

As "best practice" you never have the OS and the data/logs/user homes on
the same partition or set of disks.

If this is the case then your life is pretty easy:
 -simply create the new set of partitions
 -mount the new ones in a temporary location
 -rsync (or copy everything from old partitions)
 -Stop dovecot / all other daemons that might be using the data
 -mount the new ones in the place of old ones, mount the old ones in the
place of new ones
 - rsync again (should be quick as not many things changed)
 - start all your deamons again :P

If you do not have separate partitions maybe this is the perfect time to
look into that...

I would also look into btrfs... might be a good pick for your new partitions.

best regards,
Andrei

> Hello all,
>
> I have a DL360 G4 1U server that does a wonderfull job with dovecot horde,
> Xmail and OpenLDAP for a company and serving about 40 acouunts.
>
> The machine is wonderful. I am very happy with it.
> However, I am running out of disk space.
> It has two times 76Gb Drives in RAID1 (disk mirroring) and the capacity
> has reached 82%. 
>
> I am starting of getting nervous.
>
> Does anyone know of a painless way to migrate the entire contents directly
> to another pair of 146Gb SCSI RAID1 disks ?
>
> I thought of downtime and using clonezilla, but my last experience with it
> was questionable. I remember having problems declaring disk re-sizing
> from the smaller capacity drives to the larger ones.
>
> CentOS 5.5
> Manual install of :
>
> Mysql
> XMail (pop3/smtp)
> ASSP (anti spam)
> Apache / LAMP
> and last but by no means list : Dovecot
>
> Dovecot -n :
>
> # 1.2.16: /etc/dovecot/dovecot.conf
> # OS: Linux 2.6.18-194.17.4.el5 i686 CentOS release 5.5 (Final) ext3
> base_dir: /var/run/dovecot/
> log_path: /var/log/dovecot/dovecot.log
> info_log_path: /var/log/dovecot/dovecot-info.log
> ssl_parameters_regenerate: 48
> verbose_ssl: yes
> login_dir: /var/run/dovecot//login
> login_executable: /usr/local/dovecot/libexec/dovecot/imap-login
> login_greeting: * Dovecot ready *
> login_max_processes_count: 96
> mail_location: maildir:/var/MailRoot/domains/%d/%n/Maildir
> mail_plugins: zlib
> auth default:
>   verbose: yes
>   debug: yes
>   debug_passwords: yes
>   passdb:
>     driver: passwd-file
>     args: /etc/dovecot/passwd
>   passdb:
>     driver: pam
>   userdb:
>     driver: static
>     args: uid=vmail gid=vmail home=/home/vmail/%u
>   userdb:
>     driver: passwd
>
>
> Any help would be appreciated or any ideas you might have.
>
> Regards,
>
> spyros
>
>
>
>
>
>
> ----
> "I merely function as a channel that filters
> music through the chaos of noise"
> - Vangelis 
>
> !DSPAM:50609d2c301831828332458!
>
>





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