Re: [Hampshire] [OT] SSD specs

2012-02-14 Thread Jacqui Caren
On 13/02/2012 11:20, James Courtier-Dutton wrote: On 13 February 2012 11:14, Anton Piatek wrote: I didn't think you had direct access to sectors. I thought the controller rotated data to spread writes across the the storage. Yes, there is that, but if you write to the whole disk once, and th

Re: [Hampshire] [OT] SSD specs

2012-02-13 Thread Gordon Scott
As far as I am aware there remains a `wear-out' on Flash. I don't think they've solved that. I checked a few flash ICs that are likely to get used in SSDs and most talk 100,000 cycles, have spare memory to replace failed bits and have ECC in them. That said, you know perfectly well, of course, t

Re: [Hampshire] [OT] SSD specs

2012-02-13 Thread Benjie Gillam
On 13 Feb 2012, at 11:20, James Courtier-Dutton wrote: > Yes, there is that, but if you write to the whole disk once, and then > write to the whole disk a second time, you will be 100% sure that you > have hit each actual flash sector at least twice, even if wear > leveling is used. Actually I be

Re: [Hampshire] [OT] SSD specs

2012-02-13 Thread Freaky Clown
I spent months worrying over what ssd's to buy, then i realised when you compare the numbers to real world data... it doesnt really matter, just buy the one you like the look of its just as relevant! -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman

Re: [Hampshire] [OT] SSD specs

2012-02-13 Thread James Courtier-Dutton
On 13 February 2012 11:14, Anton Piatek wrote: > I didn't think you had direct access to sectors. I thought the controller > rotated data to spread writes across the the storage. > Yes, there is that, but if you write to the whole disk once, and then write to the whole disk a second time, you wil

Re: [Hampshire] [OT] SSD specs

2012-02-13 Thread Anton Piatek
I didn't think you had direct access to sectors. I thought the controller rotated data to spread writes across the the storage. Anton - Anton Piatek (sent from my phone, please excuse any typos) email: an...@piatek.co.uk blog/photos: http://www.strangeparty.com pgp: [74B1FA37] (http:// www.strange

[Hampshire] [OT] SSD specs

2012-02-13 Thread James Courtier-Dutton
Hi, I have looked at OCZ and Kingston datasheets, they mention things like IOPS and read and write speeds, but there is no mention of "Max writes per sector". I thought that bit of info was useful because it helps you decide if your application will wear the SSD out of not. Is the reason why it is