I see this problem on a HP DL380 server .. the usb drive is currently
unavailable:-
root@ubuntu:/var/log# uname -a
Linux ubuntu 2.6.32-27-server #49-Ubuntu SMP Thu Dec 2 02:05:21 UTC 2010 x86_64
GNU/Linux
Jan 23 08:21:55 ubuntu kernel: [648744.030323] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:21:55 ubuntu kernel: [648744.270318] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:21:59 ubuntu kernel: [648748.357759] sd 3:0:0:1: [sdb] Unhandled
error code
Jan 23 08:21:59 ubuntu kernel: [648748.357765] sd 3:0:0:1: [sdb] Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
Jan 23 08:21:59 ubuntu kernel: [648748.357769] sd 3:0:0:1: [sdb] CDB: Read(10):
28 20 3c 34 73 5f 00 00 f0 00
Jan 23 08:22:30 ubuntu kernel: [648779.000233] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:22:35 ubuntu kernel: [648784.192808] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:22:50 ubuntu kernel: [648798.840292] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:22:50 ubuntu kernel: [648799.070288] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:22:54 ubuntu kernel: [648803.148230] sd 3:0:0:1: [sdb] Unhandled
error code
Jan 23 08:22:54 ubuntu kernel: [648803.148236] sd 3:0:0:1: [sdb] Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
Jan 23 08:22:54 ubuntu kernel: [648803.148240] sd 3:0:0:1: [sdb] CDB: Read(10):
28 20 6b 07 63 8f 00 00 30 00
Jan 23 08:23:25 ubuntu kernel: [648833.940333] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:46:52 ubuntu kernel: [650240.700241] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:46:52 ubuntu kernel: [650240.930237] usb 1-8.1: reset high speed USB
device using ehci_hcd and address 5
Jan 23 08:46:56 ubuntu kernel: [650245.022309] sd 3:0:0:1: [sdb] Unhandled
error code
root@ubuntu:/var/log# lsusb
Bus 006 Device 003: ID 03f0:1327 Hewlett-Packard
Bus 006 Device 002: ID 03f0:1027 Hewlett-Packard
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 4971:1002 SimpleTech
Bus 001 Device 003: ID 4971:1005 SimpleTech
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@ubuntu:/var/log#
root@ubuntu:/var/log# fdisk -l
Disk /dev/cciss/c0d0: 733.9 GB, 733910294528 bytes
255 heads, 63 sectors/track, 89226 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: 0x000e9148
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 85613 687679488 83 Linux
/dev/cciss/c0d0p2 85613 89227 29027329 5 Extended
/dev/cciss/c0d0p5 85613 89227 29027328 82 Linux swap /
Solaris
Disk /dev/sda: 4072 MB, 4072669184 bytes
53 heads, 52 sectors/track, 2886 cylinders
Units = cylinders of 2756 * 512 = 1411072 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 * 3 2887 3973120 b W95 FAT32
root@ubuntu:/var/log#
It is interesting that it sees the memory stick which is part of this Hitachi
life studio disk.
Is there any way to force the drive to be reset without rebooting ?
Thx Dave
Is there
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https://bugs.launchpad.net/bugs/349767
Title:
external USB hard drive disconnects
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