[gentoo-user] Open-Channel SSD target support option

[gentoo-user] Open-Channel SSD target support option

[Jacques Montier]

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Hello all,

In the new stable kernel configuration (4.4.6-gentoo-sources) there is the
option :

*Open-Channel SSD target support (NVM) [N/y/?] (NEW) ?*

*CONFIG_NVM:*

*Say Y here to get to enable Open-channel SSDs.*

*Open-Channel SSDs implement a set of extension to SSDs, that*
*exposes direct access to the underlying non-volatile memory.*

*If you say N, all options in this submenu will be skipped and disabled*
*only do this if you know what you are doing.*

*Symbol: NVM [=n]*
*Type  : boolean*
*Prompt: Open-Channel SSD target support*
*  Location:*
*    -> Device Drivers*
*  Defined at drivers/lightnvm/Kconfig:5*
*  Depends on: BLOCK [=y]*


Gentoo is installed on a 256 Mo Crucial SSD and  i see the line "*only do
this if you know what you are doing"...*
So is it safe to select this option or not ?

Thank you in advance for your response,

Regards,


*--*
*Jacques*

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Re: [gentoo-user] Open-Channel SSD target support option

[Adam Carter]

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On Mon, Apr 25, 2016 at 8:21 PM, Jacques Montier <jmontier@gmail.com> wrote:

> Hello all,
>
> In the new stable kernel configuration (4.4.6-gentoo-sources) there is the
> option :
>
> *Open-Channel SSD target support (NVM) [N/y/?] (NEW) ?*
>
> *CONFIG_NVM:*
>

Unless you have a NVMe motherboard and disk (which are quite new and you
would likely know about it), leave it off as it wont/cant be used.

Most SSDs are AHCI, so make sure the kernel is configured for that and
controller is using that in the MB settings, otherwise you will be use an
older, slower interface.

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Re: [gentoo-user] Open-Channel SSD target support option

[Jacques Montier]

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2016-04-26 3:20 GMT+02:00 Adam Carter <adamcarter3@gmail.com>:

> On Mon, Apr 25, 2016 at 8:21 PM, Jacques Montier <jmontier@gmail.com>
> wrote:
>
>> Hello all,
>>
>> In the new stable kernel configuration (4.4.6-gentoo-sources) there is
>> the option :
>>
>> *Open-Channel SSD target support (NVM) [N/y/?] (NEW) ?*
>>
>> *CONFIG_NVM:*
>>
>
> Unless you have a NVMe motherboard and disk (which are quite new and you
> would likely know about it), leave it off as it wont/cant be used.
>
> Most SSDs are AHCI, so make sure the kernel is configured for that and
> controller is using that in the MB settings, otherwise you will be use an
> older, slower interface.
>
>
Thank you Adam,

Yes my mobo is rather old and my SSD is AHCI.
So i leave the option unchecked.

Regards,

*--*
*Jacques*

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