usb hard disk not getting recognized

[Abhishek Dixit]

disconnecting the USB dmesg shows
[  107.098391] sd 7:0:0:2: [sdd] Attached SCSI disk
[  117.861838] exe (2743): /proc/2743/oom_adj is deprecated, please use
/proc/2743/oom_score_adj instead.
[  706.613905] usb 2-1: USB disconnect, device number 2

and again I reconnect it and run dmesg it shows
[ 1057.504101] usb 2-1: new high speed USB device number 3 using ehci_hcd
[ 1057.639957] scsi8 : uas
[ 1057.641429] scsi 8:0:0:0: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1063.840143] scsi 8:0:0:0: uas_eh_abort_handler tag 0
[ 1063.840154] scsi 8:0:0:0: uas_eh_device_reset_handler tag 0
[ 1063.840158] scsi 8:0:0:0: uas_eh_target_reset_handler tag 0
[ 1063.840163] scsi 8:0:0:0: uas_eh_bus_reset_handler tag 0
[ 1063.952338] usb 2-1: reset high speed USB device number 3 using ehci_hcd
[ 1064.085671] scsi 8:0:0:0: Device offlined - not ready after error
recovery
[ 1064.085733] scsi 8:0:0:0: rejecting I/O to offline device
[ 1064.085749] scsi 8:0:0:0: rejecting I/O to offline device
[ 1064.086988] scsi 8:0:0:1: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.088131] scsi 8:0:0:2: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.089211] scsi 8:0:0:3: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.090326] scsi 8:0:0:4: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.091457] scsi 8:0:0:5: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.092579] scsi 8:0:0:6: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.093698] scsi 8:0:0:7: Direct-Access     Dell     USB Portable HDD
040D PQ: 0 ANSI: 6
[ 1064.094022] sd 8:0:0:0: Attached scsi generic sg2 type 0
[ 1064.094281] sd 8:0:0:1: Attached scsi generic sg3 type 0
[ 1064.094537] sd 8:0:0:2: Attached scsi generic sg4 type 0
[ 1064.094788] sd 8:0:0:3: Attached scsi generic sg5 type 0
[ 1064.095044] sd 8:0:0:4: Attached scsi generic sg6 type 0
[ 1064.095292] sd 8:0:0:5: Attached scsi generic sg7 type 0
[ 1064.095541] sd 8:0:0:6: Attached scsi generic sg8 type 0
[ 1064.095785] sd 8:0:0:7: Attached scsi generic sg9 type 0

Ubuntu 11.10
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20130109/b9d195e7/attachment.html>