On 09/07/2017 01:57 PM, hw wrote: > > Hi, > > is there anything that speaks against putting a cyrus mail spool onto a > btrfs subvolume? > I might be the lone voice on this, but I refuse to use btrfs for anything, much less a mail spool. I used it in production on DB and Web servers and fought corruption issues and scrubs hanging the system more times than I can count. (This was within the last 24 months.) I was told by certain mailing lists, that btrfs isn't considered production level. So, I scrapped the lot, went to xfs and haven't had a problem since. I'm not sure why you'd want your mail spool on a filesystem and seems to hate being hammered with reads/writes. Personally, on all my mail spools, I use XFS or EXT4. OUr servers here handle 600million messages a month without trouble on those filesystems. Just my $0.02. -- Mark Haney Network Engineer at NeoNova 919-460-3330 option 1 mark.haney at neonova.net www.neonova.net