Hi Raphael,
Can you also share the figures on the average mailbox size and number of cocurrent users in peak hour before and after migration? What is your hardware configuration (CPU / MEMORY / DISK TYPE )?
- Joe
----- Original Message ----- From: "Raphael Bittencourt S. Costa" <raphaelbscosta@gmail.com> To: "dovecot" <dovecot@dovecot.org> Sent: Monday, June 23, 2008 10:36 PM Subject: [Dovecot] 1 week after full migration to 1.1v
Ehlo all,
I've been working on a migration of about 240K users from one server with qmail, courier imap, maildrop and ldap to postfix, dovecot, lda +sieve. Before the migration the server and the storage were always on high load.
Before migration:
Storage IOPs = 4600 Read average = 2800 Write average = 1800
Storage CPU (Raid5) Crl0 = 50% Crl1 = 50%
Server Load = 120 %user = 35 %system = 60 %iowait = 5 %idle = 0
After migration:
Storage IOPs = 3000 Read average = 1200 Write average = 1800
Storage CPU (Raid5) Crl0 = 40% Crl1 = 40%
Server Load = 25 %user = 10 %system = 27 %iowait = 40 %idle = 23
And now the server responds so quickly to any imap command.
Dovecot is now the default imap/pop server here, Thanks Timo.
[]s,
Raphael Costa