Recompressing BTRFS files

Ages ago, I reconfigured my postfix/dovecot mail server to use BTRFS for it’s mail store; thinking that the mail files would compress fairly well so it’d be an efficient use of disk space. I’d just mounted the volume with compress=lzo and not thought anything else about it. Yesterday, Icinga/Nagios started nagging me that the disk… Continue reading Recompressing BTRFS files