Questions about erasing an ssd to restore performance under
killing at multiplay.co.uk
Thu Aug 4 23:27:16 UTC 2011
----- Original Message -----
From: "Steven Hartland"
>> Understood. I'm off work this week so I'll see if I can dedicate some
>> time to it. Too many non-work projects I'm juggling right now, argh.
>> I'll have to start with camcontrol since the test system I have uses
>> ada(4) and not classic ata(4). I'm not even sure what I'm really in for
>> given that I've never looked at camcontrol's code before.
>> If I "brick" my SSD I'll send you a bill, Steven. Kidding. :-)
We seem to be having this issue on more disks now so I thought I'd
have a bash at it to see how far I could get. To my suprise I think
I've pretty much got it all the ata security options added to camcontrol.
The only outstanding issue seems to be cam / ata appears to have an
overflow bug which limits timeouts to 2147 seconds or less which would
likely cause issues for rotary disks.
I've posted about this in a seperate thread
"cam / ata timeout limited to 2147 due to overflow bug?"
In the mean time would you be interested in reviewing the code Jeremy?
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