External USB hard drive "loosing" connection [Maxtor onetouch]

[Karl Larsen]

Hemant Bist wrote:
> I will try remounting the drive from the script.[ Its a sbackup
> package crontab  running as root.]
>
> I also suspect that its due to sleep mode. Could it have something to with
> the fact that I reformatted the drive to ext3 from NTFS?
>   
    Was the hard drive not mounted? What did the program mkfs.ext3 end 
with after it quit?


> I found this article claiming that there is no problem with Maxtor drives.[
> http://www.engadget.com/profile/1588927/].
>
>   
    Maxtor has a long history of failure. I will never buy one. I buy 
only Western Digital because I have a giant 40 MB one I bought in 1985 
and it is still good. All the newer ones are good.
> Here are the errors I see in syslog.
>
> .
>
>
>  localhost kernel: [174463.681864] sd 1:0:0:0: Device not ready.
>  localhost kernel: [174463.681885] end_request: I/O error, dev sda, sector
> 4655
>   
    This looks bad. Ubuntu doesn't use sda, it uses hda.

>  localhost kernel: [174463.687888] Aborting journal on device sda1.
>  localhost kernel: [175036.945142] ext3_abort called.
>  localhost kernel: [175036.945164] EXT3-fs error (device sda1):
> ext3_journal_start_sb: Detected aborted journal
>  localhost kernel: [175036.945176] Remounting filesystem read-only
>
> HB
>
>
> On 3/12/08, Neil <hok.krat at gmail.com> wrote:
>   
>> On Wed, Mar 12, 2008 at 5:47 AM, Hemant Bist <hemantbist at gmail.com> wrote:
>>     
>>> Hi,
>>> I recently bought a Maxtor onetouch extenal USB drive 500GB for backup
>>>       
>> for
>>     
>>> my ubuntu dapper system.
>>> Every morning the backup script fails because it has problem in
>>>       
>> accessing
>>     
>>> the drive. Once I manually remount(sudo umount /dev/sda1; sudo mount
>>> /dev/sda1) the drive and restart backup it works fine.
>>> Has anyone seen this problem before? Any workarounds for this?
>>>       
>> I'd simply start the script with "sudo umount /dev/sda1; sudo mount
>> /dev/sda1" That is, if it is a bash script. Other types of scripts
>> would need other commands, or a new script with that and the command
>> to execute the original script.
>> If you run the script as root (in the root crontab) it shouldn't even
>> be necessary to use sudo.
>> It might even be useful for the harddrive to shut down with the power
>> consumption.
>>
>> just my 2 cents
>>
>> Neil
>>
>> --
>> There are two kinds of people:
>> 1. People who start their arrays with 1.
>> 1. People who start their arrays with 0.
>>
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>>     
>
>   


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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