Re: [beagleboard] BBB eMMC health ...

2015-08-29 Thread Gerald Coley 
Based on Kingston's road map, 128GB. 64GB for Micron.

Next controllers will be 5.0.

Gerald


On Sat, Aug 29, 2015 at 11:54 AM, Graham  wrote:

> Gerald:
>
> What is the largest (addressable memory space) eMMC that will fit on the
> existing
> board footprint on the BBB Rev. C ?
>
> --- Graham
>
> ==
>
> On Saturday, August 29, 2015 at 4:17:38 AM UTC-5, philippe.frossard wrote:
>>
>> Le 28/08/2015 15:39, Gerald Coley a écrit :
>> > The eMMC will die when it runs out of space. If a sector goes bad, it
>> > gets marked as bad and you loose the space. It is all handled by the
>> > controller inside the eMMC. Very similar to a Solid State Drive.
>> >
>> > MTBF depends on how you are using it. Most likely thing to fail would
>> > be the processor so you can use the MTBF of that devices. BBB is
>> > development board, not an industrial solution.
>> >
>> > If you run this all full speed and high temperature, the MTBF will be
>> > shorter.
>> >
>> > I believe we are already at 5.0 on eMMC, assuming all features are
>> > activated via the kernel.
>>
>> --
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Re: [beagleboard] BBB eMMC health ...

2015-08-29 Thread Graham 
Gerald:

What is the largest (addressable memory space) eMMC that will fit on the 
existing 
board footprint on the BBB Rev. C ?

--- Graham

==

On Saturday, August 29, 2015 at 4:17:38 AM UTC-5, philippe.frossard wrote:
>
> Le 28/08/2015 15:39, Gerald Coley a écrit : 
> > The eMMC will die when it runs out of space. If a sector goes bad, it 
> > gets marked as bad and you loose the space. It is all handled by the 
> > controller inside the eMMC. Very similar to a Solid State Drive. 
> > 
> > MTBF depends on how you are using it. Most likely thing to fail would 
> > be the processor so you can use the MTBF of that devices. BBB is 
> > development board, not an industrial solution. 
> > 
> > If you run this all full speed and high temperature, the MTBF will be 
> > shorter. 
> > 
> > I believe we are already at 5.0 on eMMC, assuming all features are 
> > activated via the kernel. 
>
>

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Re: [beagleboard] BBB eMMC health ...

2015-08-29 Thread Philippe Frossard 

Le 28/08/2015 15:39, Gerald Coley a écrit :
The eMMC will die when it runs out of space. If a sector goes bad, it 
gets marked as bad and you loose the space. It is all handled by the 
controller inside the eMMC. Very similar to a Solid State Drive.


MTBF depends on how you are using it. Most likely thing to fail would 
be the processor so you can use the MTBF of that devices. BBB is 
development board, not an industrial solution.


If you run this all full speed and high temperature, the MTBF will be 
shorter.


I believe we are already at 5.0 on eMMC, assuming all features are 
activated via the kernel.


I'm ok with you about bad block management in the controller ...
The kingston chips is KE4CN2H5A on the last BBB (eMMC 4.5)



Gerald


On Fri, Aug 28, 2015 at 7:11 AM, Philippe Frossard 
mailto:philippe.fross...@free.fr>> wrote:


Hi,
I don't want to change the eMMC chips ...
I just want to know when the eMMC chips go to the end of life ...
And, also change the BBB (not the eMMC chip) !
Are there informations to know the MTBF of the BBB ?
Or wait a BBB with eMMC 5.0 ...
Thanks.


Le 27/08/2015 15:31, Gerald Coley a écrit :

I have never heard of anyone having to replace and eMMC on the
BBB.

If you are using it a lot then I suggest that you put a bigger
one on.

Gerald


On Thu, Aug 27, 2015 at 4:50 AM, Philippe Frossard
mailto:philippe.fross...@free.fr>
>> wrote:

Hi,
Could we get eMMC health (KE4CN2H5A),
I read about eMMC 4.5 and the health is not available ...
How to know when we need to change the BBB ?
A link for more informations about Kingstone eMMC

http://download.siliconexpert.com/pdfs/2014/6/10/4/18/30/859/kngs_/manual/kingstonembeddedmemorymar14.pdf

-- Philippe Frossard



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Re: [beagleboard] BBB eMMC health ...

2015-08-28 Thread Gerald Coley 
The eMMC will die when it runs out of space. If a sector goes bad, it gets
marked as bad and you loose the space. It is all handled by the controller
inside the eMMC. Very similar to a Solid State Drive.

MTBF depends on how you are using it. Most likely thing to fail would be
the processor so you can use the MTBF of that devices. BBB is development
board, not an industrial solution.

If you run this all full speed and high temperature, the MTBF will be
shorter.

I believe we are already at 5.0 on eMMC, assuming all features are
activated via the kernel.

Gerald


On Fri, Aug 28, 2015 at 7:11 AM, Philippe Frossard <
philippe.fross...@free.fr> wrote:

> Hi,
> I don't want to change the eMMC chips ...
> I just want to know when the eMMC chips go to the end of life ...
> And, also change the BBB (not the eMMC chip) !
> Are there informations to know the MTBF of the BBB ?
> Or wait a BBB with eMMC 5.0 ...
> Thanks.
>
>
> Le 27/08/2015 15:31, Gerald Coley a écrit :
>
>> I have never heard of anyone having to replace and eMMC on the BBB.
>>
>> If you are using it a lot then I suggest that you put a bigger one on.
>>
>> Gerald
>>
>>
>> On Thu, Aug 27, 2015 at 4:50 AM, Philippe Frossard <
>> philippe.fross...@free.fr > wrote:
>>
>> Hi,
>> Could we get eMMC health (KE4CN2H5A),
>> I read about eMMC 4.5 and the health is not available ...
>> How to know when we need to change the BBB ?
>> A link for more informations about Kingstone eMMC
>>
>> http://download.siliconexpert.com/pdfs/2014/6/10/4/18/30/859/kngs_/manual/kingstonembeddedmemorymar14.pdf
>>
>> -- Philippe Frossard
>>
>> -- For more options, visit http://beagleboard.org/discuss
>> --- You received this message because you are subscribed to the
>> Google Groups "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it,
>> send an email to beagleboard+unsubscr...@googlegroups.com
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>>
>>
>> --
>> Gerald
>> ger...@beagleboard.org 
>> http://beagleboard.org/
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
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>>
>
> --
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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/

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Re: [beagleboard] BBB eMMC health ...

2015-08-28 Thread Philippe Frossard 

Hi,
I don't want to change the eMMC chips ...
I just want to know when the eMMC chips go to the end of life ...
And, also change the BBB (not the eMMC chip) !
Are there informations to know the MTBF of the BBB ?
Or wait a BBB with eMMC 5.0 ...
Thanks.


Le 27/08/2015 15:31, Gerald Coley a écrit :

I have never heard of anyone having to replace and eMMC on the BBB.

If you are using it a lot then I suggest that you put a bigger one on.

Gerald


On Thu, Aug 27, 2015 at 4:50 AM, Philippe Frossard 
mailto:philippe.fross...@free.fr>> wrote:


Hi,
Could we get eMMC health (KE4CN2H5A),
I read about eMMC 4.5 and the health is not available ...
How to know when we need to change the BBB ?
A link for more informations about Kingstone eMMC

http://download.siliconexpert.com/pdfs/2014/6/10/4/18/30/859/kngs_/manual/kingstonembeddedmemorymar14.pdf

-- 
Philippe Frossard


-- 
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Re: [beagleboard] BBB eMMC health ...

2015-08-27 Thread Gerald Coley 
I have never heard of anyone having to replace and eMMC on the BBB.

If you are using it a lot then I suggest that you put a bigger one on.

Gerald


On Thu, Aug 27, 2015 at 4:50 AM, Philippe Frossard <
philippe.fross...@free.fr> wrote:

> Hi,
> Could we get eMMC health (KE4CN2H5A),
> I read about eMMC 4.5 and the health is not available ...
> How to know when we need to change the BBB ?
> A link for more informations about Kingstone eMMC
>
> http://download.siliconexpert.com/pdfs/2014/6/10/4/18/30/859/kngs_/manual/kingstonembeddedmemorymar14.pdf
>
> --
> Philippe Frossard
>
> --
> For more options, visit http://beagleboard.org/discuss
> --- You received this message because you are subscribed to the Google
> Groups "BeagleBoard" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to beagleboard+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/

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[beagleboard] BBB eMMC health ...

2015-08-27 Thread Philippe Frossard 

Hi,
Could we get eMMC health (KE4CN2H5A),
I read about eMMC 4.5 and the health is not available ...
How to know when we need to change the BBB ?
A link for more informations about Kingstone eMMC
http://download.siliconexpert.com/pdfs/2014/6/10/4/18/30/859/kngs_/manual/kingstonembeddedmemorymar14.pdf

--
Philippe Frossard

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