[DRBD-user] ext3 problems?

[R.B. (Rick)]

Hi guys,

i've installed drbd last friday and it was ok...now this morning i have
this error:

mkdir: cannot create directory
`/drbd-disk/bb/bbvar/histlogs/fastint_radio_net': Input/output error

Doing fsck:

[root at proxynode1 root]# fsck.ext3 /dev/nb0
e2fsck 1.34 (25-Jul-2003)
The filesystem size (according to the superblock) is 8960245 blocks
The physical size of the device is 8819635 blocks
Either the superblock or the partition table is likely to be corrupt!
Abort<y>?

Error reading block 8847583 (Invalid argument) while doing inode scan. 
Ignore error<y>?

Force rewrite?

What's happen???

Thanks

Riccardo