Hi All,

Thank you for viewing my first post, and appreciate for any helps.

I have a ext 3T usb HDD with power supply connect to my server on board usb port. Server is running Red Hat SE 4 at the moment.

When i do "fdisk -l", i could not see that disk list in anywhere.

when i do: tail -f /var/log/message while i was connecting and disconnecting that disk. no usb log at all.

and then i issue: dmesg |grep -i "SCSI" which gives me following log:
------------
scsi3 : SCSI emulation for USB Mass Storage devices
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sdau: 732566645 4096-byte hdwr sectors (3000593 MB)
SCSI device sdau: 732566645 4096-byte hdwr sectors (3000593 MB)
Attached scsi disk sdau at scsi3, channel 0, id 0, lun 0
Attached scsi generic sg50 at scsi3, channel 0, id 0, lun 0, type 0
scsi: Device offlined - not ready after error recovery: host 3 channel 0 id 0 lun 0
SCSI error : <3 0 0 0> return code = 0x10000
scsi3 (0:0): rejecting I/O to device being removed
scsi4 : SCSI emulation for USB Mass Storage devices
--------

So, looks like there is I/O issue which is causing OS reject USB HDD.

I also did some research and found out ppl is talking about change the usb delay time:
http://www.aigarius.com/blog/2008/01...rage-in-linux/

but i could not see that sys/module/usb_storage/parameters/delay_use folder in my server.

Any suggestion of this issue?

Thank you very much.

Andy

Hi,

You don't mention this but did you see and try what was written in comment no. 1? Hope this helps.

Hi druuna,

Thank you for your valuable reply.

as soon as i applied your comment and tried again, it is working now.

Nice.

Thank you.

Andy

You're welcome

BTW: Can you put up the [SOLVED] tag.
first post -> Thread Tools -> Mark this thread as solved