Hi folks,

FC6 amd64


I have an USB enclosure with ATA and SATA connection to HD. It is an economic product without brandname. Occasionally the ATA-HD can't be mounted for unknown reason after working a while. The HD was without problem, removed from workstation and workable.

Partitions
# fdisk -l
Code:
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
.....
...
Disk /dev/sdb: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        1825    14659281   83  Linux
/dev/sdb2            1826        3650    14659312+  83  Linux
/dev/sdb3            3651        4865     9759487+  83  Linux

Partition-1 - ext3-fs having data
Pattition-2 - ext3-fs w/o data
Partition-3 - ext3-fs w/o data


On mounting partition-1 following warning popup:
Code:
mount: wrong fs type, bad option, bad superblock on 
/dev/sdb1, missing codepage or other error In some cases 
useful info is found in syslog - try dmesg | tail or so
Partition-2/3 can be mounted w/o problem


$ dmesg | tail -30
Code:
usb 2-3: new high speed USB device using ehci_hcd and address 2
usb 2-3: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
scsi 2:0:0:0: Direct-Access     ST340016 WB5A                  PQ: 0 ANSI: 2 CCS
SCSI device sdb: 78165360 512-byte hdwr sectors (40021 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 38 00 00
sdb: assuming drive cache: write through
SCSI device sdb: 78165360 512-byte hdwr sectors (40021 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 38 00 00
sdb: assuming drive cache: write through
 sdb: sdb1 sdb2 sdb3
sd 2:0:0:0: Attached scsi disk sdb
sd 2:0:0:0: Attached scsi generic sg1 type 0
usb-storage: device scan complete
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sdb3, type ext3), uses xattr
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: initialized (dev sdb2, type ext3), uses xattr
EXT2-fs: unsupported inode size: 0
Partition-1 can't be used again unless reformatted. This happened frequently without any warning, HD either with/without partitions. Changing another HD did not solve the problem. The cause is unknown.

Please advise where I have to check.


If to purchase another USB enclosure, where I have to pay attention? Any recommendation? TIA


B.R.
satimis