# -s sparse
# -b 4k block size sutable for ext4 filesystem which ganeti uses
# lz4 compression with low cpu operhead which always helps
-test -z "$EXTP_VOL_PARAM" && EXTP_VOL_PARAM="-s -b 4k -o compression=lz4"
+test -z "$EXTP_CREATE" && EXTP_CREATE="-s -b 4k -o compression=lz4"
# on zfs destroy remove snapshots of instance disks
test -z "$EXTP_DESTROY" && EXTP_DESTROY="-r"