I'm using a software raid5 and raid1 setup with a 2.4.17 kernel without problems. I'd probably look at db3 being the cause of locking mailboxes before troubleshooting raid issues. We're using the debian 3.2.9 db3 package.
-david -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of julesa Sent: Friday, February 15, 2002 11:01 AM To: [EMAIL PROTECTED] Subject: Intermittent mailbox lockups We've been living with this problem for some time, but it seems to be occurring more often as we add users. It's still very intermittent, it hits about three users a week. What happens is one of their mailboxes just locks up and will not accept any new mail. Killing the master and restarting it has no effect, but reconstruct -r user.[uid] fixes the problem. We've upgraded from 2.0.15-HIERSEP to 2.1.1 and still have the problem. We're using the RedHat db3 RPM version 3.1.17-5. We are also running the Linus 2.4.3 kernel and using software RAID to mirror the message store filesystem. I'm starting to suspect the problem's related to the kernel, or perhaps to using Linux' software RAID. I should probably upgrade the kernel anyway (to RedHat's 2.4.9 release, I'm thinking), but I'm wondering if this problem will remain if I don't move the filesystem to a non-mirrored drive. Is anyone else using the Linux kernel RAID with a Cyrus message store? Any experiences, good or bad?