* dmdedup target mkfs.ext3 failed
[not found] <BAY182-W11AC11F417AD568551DD7CD51E0@phx.gbl>
@ 2014-06-25 0:59 ` lvshuo
2014-06-25 18:44 ` Vasily Tarasov
0 siblings, 1 reply; 2+ messages in thread
From: lvshuo @ 2014-06-25 0:59 UTC (permalink / raw)
To: tarasov, philip.shilane, hch, ezk, dm-devel
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@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@localhost md]#
why the create filesystem failed? dedup have any problem?
[root@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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: dmdedup target mkfs.ext3 failed
2014-06-25 0:59 ` dmdedup target mkfs.ext3 failed lvshuo
@ 2014-06-25 18:44 ` Vasily Tarasov
0 siblings, 0 replies; 2+ messages in thread
From: Vasily Tarasov @ 2014-06-25 18:44 UTC (permalink / raw)
To: lvshuo; +Cc: Geoff Kuenning, hch, dm-devel, philip.shilane, Sonam Mandal, ezk
In this command:
echo "0 8 dedup data_dev=/dev/sdb metadata_dev=/dev/sdd
mdbackend=cowbtree reconstruct=no" | dmsetup create mydedup
you set the size of the mydedup logical device to 8 sectors only.
That's why mkfs fails - it just runs out of space.
Vasily
On Tue, Jun 24, 2014 at 5:59 PM, lvshuo <testfile82@hotmail.com> wrote:
>
> 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@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@localhost md]#
>
> why the create filesystem failed? dedup have any problem?
>
>
> [root@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
>
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-06-25 0:59 ` dmdedup target mkfs.ext3 failed lvshuo
2014-06-25 18:44 ` Vasily Tarasov
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