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SubjectRe: AZFS file system proposal
> >> >> (a) What is axonram?
> >> >> (b) why is axonram direct_access, and my other devices (including
> >> >> standard PC RAM) not?
> >> >
> >> >[Axonram is a module specific for IBM CellBlade and allows access to
> >> >a DDR2 memory attached onto Axon controller.] You don't need
> >> >direct_access and not azfs for main memory because there is already
> >> >a pretty nice tmpfs for it.
> >>
> >> So the reason azfs could be useful is...?
> >
> >The "?" at the end of your sentence might mean a question. I would
> >be really happy to give an answer on it if I could understand it.
>
> If one does not need direct_access nor azfs, and ext2 plus XIP minus
> caching or tmpfs plus XIP can achieve the same effect, what can azfs
> that we could not already do without azfs?

Our users want to have a file system with bigger block sizes (64KB, 16MB, ...). They also don't want to keep metadata on DDR2 media, but to be able to use a complete DDR2 for their applications data.

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