Hello, I'm new to dovcot, but have serious issues with dovecot and IMAP. I'm struggling with low IMAP performance but have no glue, where to start my search. It is a small office setup. 10 Mailaccounts. Mine is the biggest with 4GB in size. But searching for mail takes several seconds... Zu switch to specific folder also takes some seconds. To long in my opinion. I use esxi 6.0 with local datastorage lenovo megaraid raid5 3x2TB SAS 7.2K. On the dovecot appliance i see high iowait. Some issues dovecot or the VM config? Any help i would appreciate... -- Sent from: http://dovecot.2317879.n4.nabble.com/
On 04.10.2017 16:39, Holger wrote:> Hello, > > I'm new to dovcot, but have serious issues with dovecot and IMAP. > > I'm struggling with low IMAP performance but have no glue, where to start my > search. > > It is a small office setup. 10 Mailaccounts. Mine is the biggest with 4GB in > size. But searching for mail takes several seconds... Zu switch to specific > folder also takes some seconds. To long in my opinion.Do you have fts turned on? Even fts with lucene would help. Aki
On Wed, 4 Oct 2017, Holger wrote:> I use esxi 6.0 with local datastorage lenovo megaraid raid5 3x2TB SAS 7.2K.This is probably your problem. Migrate to raid6 or raid10 on SSD. Or atleast raid10 on fast SAS-disks 15K rpm. /Jonas