Re: Cyrus imapd question

[Aleksandar Milivojevic <amilivojevic pbl ca>]

Sasa Stupar wrote:
> Hi!
>
> I am running FC3 as mailserver with sendmail+cyrus-imapd and everything 
> works fine. Now I am going out of space on the HDD and I am thinking to 
> add a new one which will server for cyrus only. So how do I tell cyrus 
> to use that other drive instead of /var/spool/imap ?
> And also is it enough just to copy this directory to a new location or 
> do I need to do something else like reconstruction or similar.

If you are using LVM, the simplest thing (as already suggested) would be 
defining additional disk as LVM physical volume.  Create partition, tag 
it as Linux LVM (8e), import it into LVM (pvcreate), add it to existing 
LVM volume group, and simply grow the logical volume and then /var file 
system.

Another simple solution would be to mount new disk as /var/spool/imap. 
Stop the IMAP server and sendmail, mount new disk as /mnt, copy all 
data, and remount the disk:

   # stop imap and sendmail before doing this
   mount /dev/new_disk /mnt
   cd /var/spool/imap
   tar cf - . | (cd /mnt; tar xpf -)
   cd ..
   mv imap imap.old # backup copy, remove when not needed
   mkdir imap
   umont /mnt
   # edit /etc/fstab and add line for /var/spool/imap
   mount /var/spool/imap
   # start imap and sendmail

When you are happy that all is working, you can delete imap.old 
directory to free some disk space.

You could have mounted new disk somewhere else and made a symbolic link 
from /var/spool, however, if SELinux policy files are ever extended to 
include separate set of rules for Cyrus-IMAPD, they will by default 
expect mailstore to live in /var/spool/imap.  So you'd save yourself 
some work by having things in defualt places.

--
Aleksandar Milivojevic <amilivojevic pbl ca>    Pollard Banknote Limited
Systems Administrator                           1499 Buffalo Place
Tel: (204) 474-2323 ext 276                     Winnipeg, MB  R3T 1L7