Hi ,

On the Thomas Krenn site you find how to use HDParm.
That way there’s no need for slices or partitions, as the OS will simply not 
see the OP’ed part.

I recommend using at least 25 ~ 30 % for those Samsung drives.
Also make sure you do a secure erase using hdparm.

Have a client running a ssd only pool using 840’s for 2 years now, and no slow 
downs.
It is smart to use an Intel3700/NMVe drive for ZIL though

https://www.thomas-krenn.com/en/wiki/SSD_Over-provisioning_using_hdparm

floris

Van: Schweiss, Chip [mailto:[email protected]]
Verzonden: maandag 25 januari 2016 20:37
Aan: [email protected]
CC: Jorge Schrauwen <[email protected]>
Onderwerp: Re: [smartos-discuss] consumer SSD for zones pool?

On Mon, Jan 25, 2016 at 1:12 PM, <[email protected]<mailto:[email protected]>> 
wrote:



> is there no issue with lack of trim support? do your intels tend to slow over
> time?

oh, wait ... am i so far behind the curve that smartos has trim support and i 
did
not yet know?


No trim yet, but if you only partition/slice about 70-80% total capacity, the 
remainder gets used for garbage collection and performance remains high and 
they last much longer.
-Chip




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