tune2fs -l /dev/md0 | grep "Reserved block count"Sorry, I forgot to mention that the result will be in Blocks. You can get the block size (in Bytes) with:tune2fs -l /dev/md0 | grep "Block size" Bye.
cool. So : server:~# tune2fs -l /dev/mapper/vg00-var | grep "Reserved block count" Reserved block count: 65471 server:~# tune2fs -l /dev/mapper/vg00-var | grep "Block size" Block size: 4096 So I guess there's around 255M of reserved space. Thanks !