Saturday, January 1, 2011

Re: [nslu2-linux] Low power / quiet drive

 

Did you do anything to minimize writes to the flash drive? These things do have a write/erase limit do they not? There are always warnings about that but I never hear what the actual life expectancy in some typical situation is. The true solid state drives have algorithms that spread the writes across the memory map to extend the life.

Doug
 
Doug Crompton
WA3DSP
www.crompton.com



From: jon pounder <jonp@inline.net>
To: nslu2-linux@yahoogroups.com
Sent: Sat, January 1, 2011 9:16:13 PM
Subject: Re: [nslu2-linux] Low power / quiet drive

 

On 01/01/2011 09:13 PM, Doug wrote:

OK,  This is something you have done? If so how long have you run it and did you set it up for minimal writes? My concern is the reliability of the flash drives on the nslu2.  The problem is that the nslu2 has minimal RAM space. Perhaps a Sheva plug or some other ARM device with more RAM might work better.

well I have a freenas system that runs completely off a usb stick plugged into the motherboard and uses sata hotswap drives for storage (granted nothing to do with nslu2 but it runs just fine)

I also have a patriot PBO that has an internal sata adapter and CF module in it, also runs without a problem and without the heat issues a sata drive in a PBO normally creates.




Doug
 
Doug Crompton
WA3DSP
www.crompton.com



From: jon pounder <jonp@inline.net>
To: nslu2-linux@yahoogroups.com
Sent: Sat, January 1, 2011 9:01:59 PM
Subject: Re: [nslu2-linux] Low power / quiet drive

 

On 01/01/2011 08:59 PM, Doug wrote:

if you don't need a ton of space go with a sata to CF adapter and just
get a compact flash stick the size you need.
it doesn't get much quieter than flash.

or just get a huge usb stick and plug it right in instead of a usb harddrive

> I wonder what the groups experience has been with low power drives under Linux
> on the nslu2? I see there are a lot of complaints about the WD Cavier Green
> drives but others seem to have no problems. I want a drive that runs cool, draws
> less power, and does not require a cooling fan. 64G would be fine but I know
> that 500G is probably a minimum now days.
>
>
> I am also interested in experiences with flash drives. I would go that route but
> the uncertainty of write cycle life leaves me a little concerned. I can remember
> way back when 10K writes was the norm life, then 100K, 1M, 10M but just what
> is the write life of these 8-64G USB sticks now and are some better than
> others? I know you can do things to extend the life but what have real
> experiences been? Has anyone "burned" one of these useless on an nslu2?
>
> Doug Crompton
> WA3DSP
> www.crompton.com
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>


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