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Date:      Thu, 04 Mar 2004 21:08:51 +1000
From:      Anubis <anubis357@optusnet.com.au>
To:        Toomas Aas <toomas.aas@raad.tartu.ee>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: backup
Message-ID:  <40470E43.7020502@optusnet.com.au>
In-Reply-To: <200403031359.i23DxgDb003853@lv.raad.tartu.ee>
References:  <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAAYzSznVi3fkWJYCR3viDFqMKAAAAQAAAA30CINh4UKEm/uYMfcCdnMgEAAAAA@planet-richard.com> <200403031359.i23DxgDb003853@lv.raad.tartu.ee>

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Toomas Aas wrote:

>Hi!
>
>On Tue, 24 Feb 2004 9:32 am, Richard Beyer wrote:
>  
>
>>>We're currently doing a back up of a FreeBSD 4.9 (2) server by
>>>plugging a USB external drive in and then doing
>>>cp /dev/ad0 /dev/da0
>>>
>>>This takes about 30 hours, (USB 1).
>>>      
>>>
>
>To which anubis answered:
>
>  
>
>>Why not use removeable drive trays with straight pata drives?  
>>    
>>
>
>Few months ago I did some research on this and found that not every 
>removable IDE drive bay supports hot-swapping - the ones that do are 
>somewhat more expensive. I myself ended up using external FireWire 
>drives, which have worked out quite well (and the speed is much better 
>than USB with FreeBSD 4.9):
>
>Toomas Aas wrote:
>
>  
>
>>To which anubis answered:
>>
>>    
>>
>>>Why not use removeable drive trays with straight pata drives?  
>>>      
>>>
>>
>>Few months ago I did some research on this and found that not every 
>>removable IDE drive bay supports hot-swapping - the ones that do are 
>>somewhat more expensive. I myself ended up using external FireWire 
>>drives, which have worked out quite well (and the speed is much better 
>>than USB with FreeBSD 4.9):
>>
>>    
>>
> I am using removeable drives and trays.  I am using the plain jane 
> vipower  ones as seen here.
> http://www.vipower.com/product/MobileRack/3fan_mobile_rack/vp_70/vp_7010ls3fu.htm
> They are connected to a promise 2 channel ide card as seen here
> http://www.promise.com/product/product_detail_eng.asp?productId=11&familyId=3
> The drives are 200GB seagates.
>
> Neither of these is rated as hot swappable as far as I know.  We are 
> using them as "hot swappable".  
> To us this means that we unmount the drive, atacontrol detatch, power 
> off then yank out without
> powering down the server.
>
> We have been using this as a backup method successfully for over a 
> month now in production and
> before that for a couple of months in testing.  We havent noticed any 
> problems so far.  
> I hesitate in calling it a success at this stage.  Ask me in 2 months 
> time when I see how the drives handle
> being lugged off site daily.
>
> When I looked at it I took the hot swapping features to be needed only 
> for windows.  
> If you are worried about burning out something use an ide card like we 
> are so if smoke comes out
> you can bin it and not the motherboard.
>
> The cost wasnt that great.  In Aussie dollars the trays were $30, the 
> card about $60.
> The machine is currently running 5.1.
>
>
>
>
>  
>




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