Le 02/02/2012 10:20 AM, Timo Sirainen a écrit :
On Thu, 2012-02-02 at 09:53 +0100, Frank Bonnet wrote:
Le 02/01/2012 09:39 PM, Timo Sirainen a écrit :
On 30.1.2012, at 10.37, Frank Bonnet wrote:
We are planning to convert our mailhub ( freebsd 7.4 ) from mbox format to maildir format. I'd do it one user at a time with dsync, but unfortunately:
the machine use real users thru openldap ( pam_ldap + nss_ldap ) nss_ldap can't store the mail_location override field needed to distinguish mbox user from maildir user. Maybe you could temporarily switch to some other userdb, which would allow extra fields. Also this requires that you deliver mails using dovecot-lda/lmtp.
another problem is disk space. The users's email data takes about 2 Terabytes of data and I cannot duplicate as I only have 3 Tb on the raid array of the server. With one-user-at-a-time conversion this wouldn't be an issue.
so is there a massive conversion method ? dsync works for that too:
- dsync backup all users somewhere
- wait close to the time you can shut down dovecot
- dsync backup all users the second time
- shutdown dovecot and MTA
- dsync backup once more (hopefully this will be relatively quick)
The idea is that you can do incremental dsync backups. You'll of course need to do this in a way that you don't run out of disk space..
Well I have NFS access to a Netapp filer with a LOT of disk space I need some modifications in my dovecot configuration to use NFS I think ?
see below the output of doveconf -n
thanks
mail# doveconf -n # 2.0.16: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 7.4-RELEASE amd64 auth_verbose_passwords = plain auth_worker_max_count = 100 debug_log_path = /var/log/dovecot/debug.log default_client_limit = 6144 default_process_limit = 1024 default_vsz_limit = 1 G disable_plaintext_auth = no info_log_path = /var/log/dovecot/info.log log_path = /var/log/dovecot/dovecot.log mail_location = mbox:%h/:INDEX=/raid/cache/dovecot/index/%u:INBOX=/raid/var/mail/%u:CONTROL=%h/ mail_temp_dir = /var/tmp managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave mbox_lock_timeout = 3 mins mbox_write_locks = fcntl mmap_disable = yes passdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster@esiee.fr protocols = imap pop3 sendmail_path = /usr/local/sbin/sendmail service auth { client_limit = 7169 } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 10 service_count = 1 vsz_limit = 3 G } service imap { process_limit = 2048 vsz_limit = 3 G } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } ssl_ca = /etc/ssl/xxx.pem ssl_cert =