[dm-devel] dmdedup target mkfs.ext3 failed
lvshuo
testfile82 at hotmail.com
Wed Jun 25 00:59:00 UTC 2014
when I user dedup target,
echo "0 8 dedup data_dev=/dev/sdb metadata_dev=/dev/sdd mdbackend=cowbtree reconstruct=no" | dmsetup create mydedup
[root at localhost md]# mkfs.ext3 /dev/mapper/mydedup
mke2fs 1.41.12 (17-May-2010)
/dev/mapper/mydedup: Not enough space to build proposed filesystem while setting up superblock
[root at localhost md]#
why the create filesystem failed? dedup have any problem?
[root at localhost md]# fdisk -l
Disk /dev/sdb: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sdc: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sdd: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
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