[pnfs] page sync model

[Benny Halevy]

On Apr. 03, 2008, 15:03 +0300, Benny Halevy <bhalevy.lists at gmail.com> wrote:
> Image updated and saved as gif (looks better)
> http://www.bhalevy.com/pnfs/pnfs-page-sync-model.gif

or even better
http://www.bhalevy.com/pnfs/pnfs-page-sync-model.pdf

> 
> Benny
> 
> On Apr. 03, 2008, 12:58 +0300, Benny Halevy <bhalevy at panasas.com> wrote:
>> I've updated http://www.bhalevy.com/pnfs/pnfs-page-sync-model.jpg
>> with the error paths as Dean requested and added the "update layout"
>> state, preceding write via LD.
>>
>> To keep it simple, I suggest all error paths go back to the initial
>> *dirty* state, although some operations (e.g. commit) can be retried
>> on some error paths.  This way we can keep error handling at one place
>> where we can decide whether to retry via pNFS - return the layout
>> we have and get a new one, or fall back to the legacy write path through
>> the MDS.
>>
>> Benny
>> _______________________________________________
>> pNFS mailing list
>> pNFS at linux-nfs.org
>> http://linux-nfs.org/cgi-bin/mailman/listinfo/pnfs
> 
> _______________________________________________
> pNFS mailing list
> pNFS at linux-nfs.org
> http://linux-nfs.org/cgi-bin/mailman/listinfo/pnfs