Ricky Beam wrote:
> On Fri, 24 Mar 2000, Helge Hafting wrote:
> >If you want both to mount the same partition for writing (or one writing
> >and another simultaneous read-only) please write a new filesystem where
> >each machine
> >ask all the others for permission (and invalidate their cached blocks)
> >before each write.
>
You probably wouldn't want to do this over the SCSI bus, but you could
use a shared Ethernet or other broadcast network to good effect. The cache
flush messages would have to be transactional, but it wouldn't be all that
hard, and might make a neat honors project.
>
> Ever head of AFS? this is very close to what it's cache manager does.
> (Although, writes are feed back to the server immediately and then it
> informs all the referencing caches the data changed. It's bloody mess
> on a slow (read: dialup) connection.)
As compared to what? I'm afraid I must dispute your claim...
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This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:19 EST