[Dovecot] 76Gb to 146Gb

[Johan Hendriks]

Spyros Tsiolis schreef:
> 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
A solution you could try is add a new server to the mix.
Leave the OS on the DL360 and put the mail data on a second machine.
Then use NFS to mount the new data store.
If you use a ZFS solution, expanding your data store is a no brainer.
146 GB drives are expensive, for 40 users SATA drives can do the job 
without any problem.

gr
Johan Hendriks