[asterisk-users] Flash IDE

Stephen Bosch posting at vodacomm.ca
Tue Sep 11 17:31:41 CDT 2007


Ed W wrote:
> I worried a lot about the same, in the end I went for a small laptop 
> drive for "safety" (it's inaudible)
> 
> However, this came up on slashdot recently and if you search around the 
> logic seems to be that:
> 
> - Flash rewrites quite a few times
> - The good stuff has wear levelling so that most roughly speaking the 
> whole thing should work until it suddenly all fails
> - Given a big enough drive with a fair bit of free space then you should 
> find it hard to wear it out in less than quite a few years even if you 
> are hitting it quite hard (probably multiples of this).  Simply do the 
> maths to get the rough life
> 
> So basically it seems that given a large enough flash drive with decent 
> wear levelling the lifetime should be completely ample...
> 
> ...Thats the theory anyway.
> 
> I feel quite bullish about the whole thing, but I think I would avoid 
> the *really* discounted cheapo flash drives since they may not have the 
> correct wear levelling.  Decent brand names should be fine though (and 
> you can google for details on their specs)

I've had CF units fail in service, but it's true that reliability is
increasing, especially as they get bigger.

I would recommend going with the largest CF you can afford.

-Stephen-




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