On Fri, 5 Aug 2005, Amos wrote:
WRT 2.3, IIRC, there was a feature such that deleting a message would
not physically delete the message but just hide it from the user. That
way a recovery wouldn't require pulling stuff off of tape (assuming the
message was there last time backups ran.) Am I remembering this
correctly? (I haven't had a chance to play with CVS source in ages,
alas.)
The code in 2.3 does "delayed" expunge. This was, if I recall correctly,
originally put in as a performance enhancement (unlink can be expensive).
But if the messages are left on disk, unexpunge becomes possible.
Anyway, assuming I'm remembering things correctly, what about folder
deletions? Is the folder and it's contents physically blown away, or is it
also just hidden from the user?
Recently have been learning about the snapshot capabilities of some of
our new SAN stuff, but got to wondering if some of these features in the
up-coming 2.3 would make that somewhat unnecessary.....
2.3 doesn't retain deleted mailboxes: the messages are removed from disk
immediately.
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