Can I share a DAT between 2 Partitions?

[Manel Ventura]

Hello,
I have to create two partitions in a rp7410. It has just one DAT device and one DVD device.

My question is: after I'll have done the two partitions, will I be able to access to the DVD and DAT devices from any of the partitions or not?

[Pete Randall · Accepted solution]

If they are external, you can unplug them from their SCSI card on one partition and plug them into the SCSI card on the other partition. If they're internal - no.


Pete

[Manel Ventura]

I'm sorry to read that.

Thanks Pete.

[Alzhy]

Go to Ebay.
Search for SCSI to Fibre Channel devices to wit:

-- SCSI to FC data router (or bridge)
-- FC HBA's for your rp7410
-- a FC switch

And you should be able to share your DAT or any SCSI device efectively between your partitions.

OR

You can buy a SCSI switch/director -- something similar to the old Printer A-B switch.

[Pete Randall]

Well, if you're going to E-Bay, it might be easier to just by another DAT and CD drive for your second partition!


Pete

[Alzhy]

That's right Pete.. a simpler and an even better suggestion from the guy with the Laurel leaves....

Actually we faced a similar situation when I implemented a virtual paritioning scheme (not HPUX although we're now active with vPars) -- the SAN solution (as I am suggesting) was the most cost effective with the current affordability of virtaull most FC devices... You can float any SCSI device around your SAN connected servers...

[Pete Randall]

I can see where that would work very well in certain situations, but in this case, there's already an internal drive. It makes sense to just add another!


Pete

[Elmar P. Kolkman]

Or leave the tapedevice and CDROM on one partition and use it over the network between the two partitions using rmt and NFS.

A nastier way would be to put the two SCSI controllers in one chain but on different SCSI-ID's, but I don't think this is supported by HP and can give nasty results if both partitions try to access the devices simultaneously.