R: Re: R: Re: best file system ?
Thank you very much for your detailed explaination! Messaggio originale Da: ama...@um.es Data: 03/12/2014 8.13 A: dovecot@dovecot.org Ogg: Re: R: Re: best file system ? El 02/12/14 a las 16:38, absolutely_f...@libero.it escribió: Hi Angel, can you please share your dovecot configuration? I have attached our doveconf -n output. We have two imap servers (with the same configuration) and two more acting as proxy (with director) in front of them. These last direct user request to their corresponding server. For storage we are using our SAN (a HP 3PAR 7400) connecting to it with fibre channel. We have two XFS filesystems. One for mail indexes and the other for user mailboxes and attachment files. In these servers we are running ubuntu 12.04 with kernel 3.4.0. What webmail are you using (if any)? We are using horde. -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 86337
R: Re: best file system ?
Hi Angel, can you please share your dovecot configuration? What webmail are you using (if any)? Thank you Messaggio originale Da: ama...@um.es Data: 02/12/2014 8.24 A: dovecot@dovecot.org Ogg: Re: best file system ? El 01/12/14 a las 18:45, Sami Ketola escribió: On 01 Dec 2014, at 18:24, absolutely_f...@libero.it wrote: Hi, I'm going to set up a new storage for our email users (about 10k). It's a network attached storage (Coraid). In your opinion, what is the best file system for mail server (pop3/imap/webmail) purpose? Depends on what OS you have chosen, or if OS is not the limiter I would go with ZFS. Have you any performance comparison with xfs? I'm running two imap servers. One with about 9k accounts and 3.5TB of storage, and another with 55k accounts and 2TB of storage with XFS, and I'm thinking about migrating them from XFS to ZFS but I'm concern about IO performance of ZFS. When we developed these two servers, I remember reading some zfs performance problems in comparison with xfs (I have lost the link) and that was the reason to finally use xfs, but now we are having problems with LVM snapshots and we also like some zfs features (like replication) so we are thinking about the change. -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 86337
Re: R: Re: best file system ?
El 02/12/14 a las 16:38, absolutely_f...@libero.it escribió:
Hi Angel,
can you please share your dovecot configuration?
I have attached our doveconf -n output. We have two imap servers (with
the same configuration) and two more acting as proxy (with director) in
front of them. These last direct user request to their corresponding server.
For storage we are using our SAN (a HP 3PAR 7400) connecting to it with
fibre channel. We have two XFS filesystems. One for mail indexes and the
other for user mailboxes and attachment files.
In these servers we are running ubuntu 12.04 with kernel 3.4.0.
What webmail are you using (if any)?
We are using horde.
--
Angel L. Mateo Martínez
Sección de Telemática
Área de Tecnologías de la Información
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868887590
Fax: 86337
# 2.1.16: /etc/dovecot/dovecot.conf
# OS: Linux 3.4.0-030400-generic x86_64 Ubuntu 12.04.5 LTS
auth_cache_negative_ttl = 0
auth_cache_size = 20 M
auth_cache_ttl = 1 days
auth_master_user_separator = *
default_process_limit = 1024
disable_plaintext_auth = no
log_timestamp = %Y-%m-%d %H:%M:%S
login_trusted_networks = 155.54.211.176/28
mail_attachment_dir = /mail/users/attachments
mail_gid = vmail
mail_home = /mail/users/mailboxes/%2Ln/%Ln
mail_location = mdbox:%h/mdbox:INDEX=/mail/indexes/%2Ln/%Ln
mail_plugins = quota zlib lazy_expunge acl stats mail_log notify
mail_privileged_group = mail
mail_uid = vmail
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
mdbox_rotate_size = 50 M
namespace {
inbox = yes
location =
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox SPAM {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
separator = .
}
namespace {
hidden = yes
list = no
location = mdbox:%h/expunged:INDEX=/mail/indexes/%2Ln/%Ln/expunged
prefix = BORRADOS.
separator = .
}
namespace {
list = children
location = mdbox:%%h/mdbox:INDEX=/mail/indexes/%%2Ln/%%Ln
prefix = shared.%%u.
separator = .
subscriptions = no
type = shared
}
passdb {
args = /etc/dovecot/master-users
driver = passwd-file
master = yes
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
passdb {
args = /etc/dovecot/dovecot-ldap-genericas.conf.ext
driver = ldap
}
passdb {
args = session=yes cache_key=%Ln-%w dovecot
driver = pam
}
plugin {
acl = vfile:/etc/dovecot/global-acls:cache_secs=3600
lazy_expunge = BORRADOS.
mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
flag_change save mailbox_create
mail_log_fields = uid box msgid size
quota = dict:User quota::file:%h/quota
quota_rule = *:storage=10G
quota_rule2 = Trash:storage=+1G
sieve = ~/.dovecot.sieve
sieve_default = /etc/dovecot/default.sieve
sieve_dir = ~/sieve
sieve_max_redirects = 15
stats_refresh = 30 secs
stats_track_cmds = yes
zlib_save = gz
zlib_save_level = 6
}
postmaster_address = postmas...@um.es
protocols = imap lmtp sieve pop3 sieve
service anvil {
client_limit = 3075
}
service auth {
client_limit = 4096
unix_listener auth-userdb {
mode = 0777
}
}
service doveadm {
inet_listener {
port = 24245
}
}
service imap {
process_limit = 12000
process_min_avail = 6
vsz_limit = 512 M
}
service ipc {
unix_listener ipc {
user = dovecot
}
}
service lmtp {
inet_listener lmtp {
port = 24
}
process_min_avail = 10
vsz_limit = 512 M
}
service pop3 {
process_min_avail = 6
}
service stats {
fifo_listener stats-mail {
mode = 0666
}
}
ssl = no
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
userdb {
args = /etc/dovecot/dovecot-ldap-genericas.conf.ext
driver = ldap
}
protocol lmtp {
mail_plugins = quota zlib lazy_expunge acl stats mail_log notify sieve
}
protocol lda {
mail_plugins = quota zlib lazy_expunge acl stats mail_log notify sieve
}
protocol imap {
mail_plugins = quota zlib lazy_expunge acl stats mail_log notify imap_quota
imap_acl
}
protocol pop3 {
pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, in=%i, out=%o
}
local 155.54.211.160/27/27 {
doveadm_password = password
}
