Re: Cluster with Alpha Workstations and Storage

It has since many years been possible to set up a VMS cluster this way, with
shared disk and file access, and I guess the system was sold that way (but
Tru64 might have this feature too nowadays).

Since VMS is no longer a platform I make a living from, I can only hope some
crafty Linux hackers will someday rise to the challenge...

/Lennart

torsdagen den 5 december 2002 14.52 skrev [email protected]:
> Berg , Bjorn wrote:
> >I want to build up a cluster from a Digital Personal Workstation 433 and
> >500 and a small Digital StorageWorks. The two computers are connetced to
> >the storage with an SCSI Y-cable.
> >When I start one computer all went fine, and I could fire Linux up. When
> >I try to start the second computer and it tries to connect to the
> >storage (SCSI), it fails wit timeouts.
> >
> >I think the problem is the spin up of the disks. Is there a way to
> >connect both computers without problems to the storage to use it as
> >shared disk?
>
> First , you need to make sure your scsi chain is OK , terminated
> at both ends , observing max cable lenght.
> You also need to make sure the scsi controllers on both systems do NOT
> use the same scsi id. Sounds like this is your problem.
>
> However , I'm not sure if you can share a disk this way. I think you can
> only have access to a disk from 1 of the systems. Maybe you can mount
> different
> partitions from 1 disk on different hosts, but I'm not sure.
> You certainly cannot share a filesystem this way , once you mount it from
> one system
> you don't want another system to access it as well.
>
> These setups are typically used to do failover without rewiring.
>
>
> Regards,
> Jaap.
>
>
>
>
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