[Info-vax] OpenVMS servers and clusters as a cloud service

[Johnny Billquist]

On 2018-01-02 09:16, Richard Maher wrote:
> On 02-Jan-18 1:45 PM, DaveFroble wrote:
>> Richard Maher wrote:
>>> Exactly. There is *no* common system disk save a Desired State image 
>>> copy. And, at least for IaaS, VMS Clusters are dead. The DLM is dead 
>>> unless you can tolerate the irony of licensing Oracle's.
>>
>> I don't agree.  The DLM is alive and well, and if VSI uses a 
>> recommendation I sent to them, it would have numeric range locking.
>>
> 
> You're missing the point :-( The DLM is/was amazing and lives on in VMS 
> Clusters but that pathetically limited (geographically and scalability 
> wise) architecture has been resigned to niche applications.
> 
> If VMS wants to grow it needs World Wide Session State services and lock 
> managers.
> 
> 32 byte lock value blocks are a fucking joke today!

If you want to grow to Google scale, you cannot have locking in the 
first place.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol