On Aug 13, 2009, at 8:13 AM, Charles Marcus wrote:
I'm also having trouble figuring out how using hard links (or their equivalent) for messages with large attachments and having only one instance of the attachment could cause *more* disk I/O than having dozens/hundred of multiple copies of the message.
The thinking is that nowadays seeks are what's killing disk I/O, so whenever possible just do a single large read. With single instance storage there would be one additional seek (if the message wasn't already in memory).
