Backup and Restore strategies for Cyrus IMAP folders

Dave O cxreg at
Tue Apr 22 14:02:29 EDT 2003

I would suggest you either configure your backup software to follow links
(aka make copies of linked files) when backing up, or turn off single
instance store in imapd.conf like this:

singleinstancestore: no

	Dave O

On Fri, 18 Apr 2003, Daniel Nilsson wrote:

> I have a question / concern regarding this, we use this method as well to
> restore entries that the users have deleted my misstake. But sometimes
> when the same message is delivered to multiple users on the same server,
> messages appear to be stored on the disk as hard links by cyrus (?) to
> appear is all receipients mailboxes. What happens is that the message
> might have been moved / deleted from the location it was linked to
> inbetween the time the user deletes his message and when we actually get
> around to read it back from the tape. The tape restore tries to restore
> the hard link but the source of the hard link is now moved/deleted, so the
> restore fails.
> This doesn't happen that often, but we have a small number of users on the
> system. Does anyone else have similar experiences ? We are running Cyrus
> v2.0.16 on Solaris 8 with the mailboxes on a UFS filesystem.

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