Re: Backup from huge Maildirs

Craig Sanders <cas@taz.net.au> wrote:

> not every filesystem has abysmal performance when you have many
> thousands of files in one directory. ext2 and ext3 perform quite badly
> in this situation.
>
> two file systems that perform well are reiserfs and XFS.

In the past, i had reiserfs for big Maildirs. After a power outage, reiserfsck ran for about 24 hours... No data loss, but that's very long.

I then did some testing with ext3 and reiserfs on a typical Maildir, on the same hardware and same disk. I don't have the numbers anymore, but ext3 with dir_index was slightly faster. I just have all my mail servers now running ext3 without performance penalty.

Just make sure you have dir_index parameter enabled on your ext3 partition (use tune2fs).

-- 
Bertrand


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