Re: Low power / quiet drive
Mike Westerhof (mwester <mwester@...
2011-01-03 19:22:49 GMT
On 1/1/2011 7:59 PM, Doug wrote:
> 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.
Note that partition size is a concern on devices like the NSLU2 -- 32MB
of memory is simply not sufficient to fsck large partitions. There's no
easy way to figure out what size works vs fails, really -- it depends on
what fsck has to do. In the case where all is well, I think the
partition size needs be under 250GB or so. When something is wrong,
well, there exist pathological cases where fsck can run practically any
host out of memory. But you can just plug the drive into a desktop
system to fix the filesystem; I think you primarily want to *detect* the
issues on the NSLU2, not necessarily to repair them.
> 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?
http://www.nslu2-linux.org/wiki/SlugOS/TurnupToRAID exists for exactly
this use-case. :) The 8GB flash devices are dirt-cheap anymore; I'd
recommend getting two that are from different manufacturers to reduce
risk even further.
> Doug Crompton