Messages in this thread | | | Date | Mon, 27 Mar 2000 08:31:10 -0500 | From | Lyle Seaman <> | Subject | Re: Fake SCSI devices |
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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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