Re: [Hampshire] Safely unmounting a server's external hard d…

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Author: Brian Chivers
Date:  
To: Hampshire LUG Discussion List
Subject: Re: [Hampshire] Safely unmounting a server's external hard drive
John Cooper wrote:
> Chris Dennis wrote:
>
>> Hello folks
>>
>> I'm planning to use one or more external USB hard drives to backup a
>> headless server running Debian. I'll probably use rsnapshot, with a
>> script that detects for the presence of the right drive.
>>
>> But how can the server tell the user when it is safe to unplug the
>> drive? Or maybe the user should somehow tell the server "I want to
>> unplug the drive -- stop using it and unmount it".
>>
>> The user's only way of communicating with the server is by email or
>> possibly via Webmin.
>>
>> Has anyone come up with a cunning plan to deal with this?
>>
>> cheers
>>
>> Chris
>>
>
> Have a look at this USB suspend script:-
>
> http://elliotli.blogspot.com/2009/01/safely-remove-usb-hard-drive-in-linux.html
>
>
>


I use autofs for things like usb & firewire drives on our backup server
(uses rsync).

I've set it up so the drive is unmounted after 30 secs if it's not in
use so this might help

http://www.autofs.org/

It's also good for things like smb mounts

Brian

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                the views of Portsmouth College