RE: [Imap-uw] uninterruptible sleep, high load average, high iowait

2008-10-22 Thread Mark Crispin
For what it's worth, this problem sounds to me like some underlying system failure and not anything in imapd. A little system with a mere 60 users should not get into this kind of trouble. In addition to hardware issues, have you checked for other possibilities, such as a denial of service

Re: [Imap-uw] uninterruptible sleep, high load average, high iowait

2008-10-22 Thread Jeff Cohen
Thanks for your very prompt reply Mark! If the problem is hardware then it is down to the 5 disks in the array, as we moved them from their former chassis to another one (same model/specs) when we thought the problem might be a bad mobo. Also, there's some additional information I forgot to

RE: [Imap-uw] uninterruptible sleep, high load average, high iowait

2008-10-22 Thread Mark Crispin
- we currently have no quotas (you read that right) on disk usage and despite warnings from I.T., many users' Inboxes had grown to between 400 and 600MB. Sent and Trash folders for several users 1GB. Some users have as many as 300 imap folders, so while there are just 60 users, we're hitting

Re: [Imap-uw] uninterruptible sleep, high load average, high iowait

2008-10-22 Thread Jeroen van Aart
Mark Crispin wrote: starts to creek around that point as well, although the issues in mbx is more with the number of messages than the raw mailbox size. luckily those who have such huge mailboxes more than likely have a few huge emails with attachments. It'll take a while for your mailbox to