In the file /cyrus-imapd-2.0.12/doc/install-configure.html, the installation procedure suggests to set some files and directories to synchronous-only updates: > 9. LINUX SYSTEMS ONLY: Set the user, quota, and partition > directories to update synchronously. Failure to do this may > lead to data corruption and/or loss of mail after a system > crash. Unfortunately, doing so may result in a serious > performance hit. Note this is for ext2fs. If you are using a > newer filesystem, either the performance hit may not be as bad > or you may not need to do this. > cd /var/imap > chattr +S user quota user/* quota/* > chattr +S /var/spool/imap /var/spool/imap/* But in cyrus-imapd-2.0.12/doc/os.html, the opposite is recommended with the new version of cyrus-imapd: > 1. synchronous fs updates. > By turning on synchronous updates for ext2fs, all updates > (instead of just meta-data) become synchronous. This is good > for reliability. Bad for performance. > The big problem used to be with the mailboxes file. The 2.0 > release and later addressed this problem by changing the flat > file to a Berkerley DB database. Is the problem that install-configure.html was not updated with release 2.0 or did I misunderstand something? Thanks, Marc - Sitepak
