* md - cache
@ 2011-02-16 16:01 Roberto Spadim
2011-02-16 16:18 ` Mathias Burén
2011-02-16 16:41 ` Andre Tomt
0 siblings, 2 replies; 4+ messages in thread
From: Roberto Spadim @ 2011-02-16 16:01 UTC (permalink / raw)
To: Linux-RAID
hi guys, i was thinking about cache insues
since md = multiple devices
could we implement a new device used for caches? (port bcache to md,
or flashcache (facebook))
something like:
mdadm --create /dev/md1 --level=cache --cache-device=/dev/XXX
--data-device=/dev/ZZZZ
--
Roberto Spadim
Spadim Technology / SPAEmpresarial
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: md - cache
2011-02-16 16:01 md - cache Roberto Spadim
@ 2011-02-16 16:18 ` Mathias Burén
2011-02-16 16:41 ` Andre Tomt
1 sibling, 0 replies; 4+ messages in thread
From: Mathias Burén @ 2011-02-16 16:18 UTC (permalink / raw)
To: Roberto Spadim; +Cc: Linux-RAID
On 16 February 2011 16:01, Roberto Spadim <roberto@spadim.com.br> wrote:
> hi guys, i was thinking about cache insues
> since md = multiple devices
> could we implement a new device used for caches? (port bcache to md,
> or flashcache (facebook))
> something like:
> mdadm --create /dev/md1 --level=cache --cache-device=/dev/XXX
> --data-device=/dev/ZZZZ
>
> --
> Roberto Spadim
> Spadim Technology / SPAEmpresarial
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
RAM
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: md - cache
2011-02-16 16:01 md - cache Roberto Spadim
2011-02-16 16:18 ` Mathias Burén
@ 2011-02-16 16:41 ` Andre Tomt
2011-02-16 18:30 ` Roberto Spadim
1 sibling, 1 reply; 4+ messages in thread
From: Andre Tomt @ 2011-02-16 16:41 UTC (permalink / raw)
To: Roberto Spadim; +Cc: Linux-RAID
On 02/16/2011 05:01 PM, Roberto Spadim wrote:
> hi guys, i was thinking about cache insues
> since md = multiple devices
> could we implement a new device used for caches? (port bcache to md,
> or flashcache (facebook))
> something like:
> mdadm --create /dev/md1 --level=cache --cache-device=/dev/XXX
> --data-device=/dev/ZZZZ
>
Wny would you want to port when it works fine across different types of
block devices already, including md? At least bcache is supposed to -
and I think flashcache too.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: md - cache
2011-02-16 16:41 ` Andre Tomt
@ 2011-02-16 18:30 ` Roberto Spadim
0 siblings, 0 replies; 4+ messages in thread
From: Roberto Spadim @ 2011-02-16 18:30 UTC (permalink / raw)
To: Andre Tomt; +Cc: Linux-RAID
i don´t know the real history of md, but dm-cache is something similar
to flashcache and bcache, i don´t know if they stoped in time, or just
md takes the place of dm
2011/2/16 Andre Tomt <andre@tomt.net>:
> On 02/16/2011 05:01 PM, Roberto Spadim wrote:
>>
>> hi guys, i was thinking about cache insues
>> since md = multiple devices
>> could we implement a new device used for caches? (port bcache to md,
>> or flashcache (facebook))
>> something like:
>> mdadm --create /dev/md1 --level=cache --cache-device=/dev/XXX
>> --data-device=/dev/ZZZZ
>>
>
> Wny would you want to port when it works fine across different types of
> block devices already, including md? At least bcache is supposed to - and I
> think flashcache too.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
Roberto Spadim
Spadim Technology / SPAEmpresarial
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-02-16 18:30 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2011-02-16 16:01 md - cache Roberto Spadim
2011-02-16 16:18 ` Mathias Burén
2011-02-16 16:41 ` Andre Tomt
2011-02-16 18:30 ` Roberto Spadim
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