Re: How to setup DASDs sharing correctly between two z/VMs under Hercules.
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Whilst I know nothing about ADABAS generally zVM does not implement Multi-write DASD sharing.? ?
Really? You're talking about the real DASD, right? Since it certainly implements guest sharing with multi-write.
I guess the question is "what's to implement ?". Since the guests are responsible for integrity with multi-write sharing, surely that can just be passed through to the real disks; if the guest issues a reserve or a release against a virtual disk, why wouldn't VM just pass that to the real device? Or of course the guest can use some other communication mechanism (CTC?) to control things safely.
How do I set up shared access to DASDs correctly in my case?
I would expect there to be one instance of ADABAS and for multiple clients to connect to that one instance using TCP/IP or IUCV
I feels to me that there is some muddling here between shared at the Hercules level and shared at the VM guest level.?
Dave
Tony H.
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