Hello, I tried to ceate a snapshot of a subvol. But it seems now work. Please see the test below. I think the file created by dd should also in the snap directory. [root@localhost mnt]# ./test2.sh + mkfs.btrfs /dev/sdb8 fs created label (null) on /dev/sdb8 nodesize 4096 leafsize 4096 sectorsize 4096 size 18.63GB Btrfs v0.16-35-g6e0e6df-dirty + btrfsctl -a Scanning for Btrfs filesystems + mount -t btrfs /dev/sdb8 /mnt/btrfs + cd /mnt/btrfs + btrfsctl -S sub /mnt/btrfs operation complete Btrfs v0.16-35-g6e0e6df-dirty + btrfsctl -s snap /mnt/btrfs/sub operation complete Btrfs v0.16-35-g6e0e6df-dirty + dd if=/dev/zero of=/mnt/btrfs/sub/file bs=1024 count=1024 1024+0 records in 1024+0 records out 1048576 bytes (1.0 MB) copied, 0.0208993 s, 50.2 MB/s + ls -a snap sub snap: . .. sub: . .. file + cd .. Anything wrong? Thanks -Shen -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2009/1/8 Shen Feng <shen@cn.fujitsu.com>:> Hello, > > I tried to ceate a snapshot of a subvol. > But it seems now work. > > Please see the test below. I think the file created by dd > should also in the snap directory. >This is the expected behaviour. Following link describes what snapshot is. http://en.wikipedia.org/wiki/Snapshot_(computer_storage) Yan Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
thanks. I got it. Shen on 01/08/2009 07:49 PM, Yan Zheng wrote:> 2009/1/8 Shen Feng <shen@cn.fujitsu.com>: >> Hello, >> >> I tried to ceate a snapshot of a subvol. >> But it seems now work. >> >> Please see the test below. I think the file created by dd >> should also in the snap directory. >> > > This is the expected behaviour. Following link describes what > snapshot is. > > http://en.wikipedia.org/wiki/Snapshot_(computer_storage) > > Yan Zheng > >-- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html