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Re: [dm-devel] [PATCH RFC v1 00/01] dm-lightnvm introduction

On 03/24/2014 08:08 PM, David Lang wrote:
> On Fri, 21 Mar 2014, Matias Bjorling wrote:
>> On 03/21/2014 02:06 AM, Joe Thornber wrote:
>>> Hi Matias,
>>> This looks really interesting and I'd love to get involved.  Do you
>>> have any recommendations for what hardware I should pick up?
>> Hi Joe,
>> The most easily available platform is OpenSSD
>> (http://www.openssd-project.org). It's a little old, but still very
>> functional. When there's a good firmware implementation, I think it will
>> be easier for the custom SSD vendor's to jump on board with their own
>> firmware.
> Is this something that would make sense to use for accessing the NAND
> flash that's being used on routers nowdays? Talking with the OpenWRT
> folks, they are having trouble supporting those devices because the
> flash may contain defects and squashfs doesn't work in such an
> environment. This appears to be the one remaining problem preventing a
> lot of new routers from working.
> If this can work as a shim layer between the hardware and the filesystem
> for OpenWRT, you would gain a very large userbase rather quickly.

It's possible and would make sense. However, I'm not sure that its the
best choice.

>From what I can see, OpenWRT routers expose their flash through mtd.
Couldn't UBIFS be a better choice for this, instead of squashfs?

> David Lang

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