Linux, Ramdisk.
=version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal log bsize=4096 blocks=2560, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 sh-4.2# mkdir /mnt2 sh-4.2# mount /dev/zram0 /mnt2 sh-4.2# xfsdump -L BckUp -M dump -f /mnt2/ROOT /mnt xfsdump: using