Re: yes, its t0rn again

On Thu, 4 Jan 2001, Jeff Bachtel wrote:
> I'm not even sure if its possible in the x86 world, but on Sparcs
> running Solaris, at least, you can have two different controllers
> access the same drive, doing this you could have a system constantly
> monitor what was being written to the disk, without it being in

Having two hosts connected to a common SCSI bus with "shared" storage is
something that is done all the time in commercial failover/high
availability systems. One problem I see happening here is SCSI-level
locks on the disks preventing both host adapters from touching the same
disk.

Or were you talking about something more like a SCSI sniffer?

Jeremy Charles
circi_at_wwoc.org
Received on Jan 06 2001