[Info-vax] upgrading to VSI VMS---and back

[Ian Miller]

On Thursday, January 6, 2022 at 9:54:53 PM UTC, Hans Bachner wrote:
> Phillip Helbig (undress to reply) schrieb am 06.01.2022 um 16:33: 
> > In article <4246c283-6a6b-4838... at googlegroups.com>, 
> > Volker Halle <volker... at hotmail.com> writes: 
> > 
> >> here is the OpenVMS cluster compatibility matrix: 
> >> 
> >> https://vmssoftware.com/products/clusters/ 
> > 
> > Better than I remember and better than some here have suggested. Alpha 
> > only: no problem mixing HPE and VSI. VSI Alpha and x86? No problem. 
> > Even HPE Alpha and x86 is possible for migration (with 8.4, apparently 
> > completely supported).
> Apparently, the modifications to the SCS protocol (which require a patch 
> for existing VMS versions) have been postponed to V9.3. As stated 
> previously, VSI can only produce patches for VSI VM releases.
> > (Even VAX, not to mention Itanium, are also 
> > possible, though it's not clear what is the maximum number of different 
> > architectures there could be in one cluster.)
> As of OpenVMS 9.1, all four architectures can coexist in the cluster: 
> 
> > View of Cluster from system ID 1341 node: X86001 6-JAN-2022 21:40:05 
> > ┌───────────────────────────────────────────┬───────────────────────────────────────┐ 
> > │ SYSTEMS │ MEMBERS │ 
> > ├────────┬───────────────────┬──────────────┼────────┬────┬─────┬───────────────────┤ 
> > │ NODE │ HW_TYPE │ SOFTWARE │ CSID │ VO │ STA │ TRANSITION_TIME │ 
> > ├────────┼───────────────────┼──────────────┼────────┼────┼─────┼───────────────────┤ 
> > │ X86001 │ VMware, Inc. │ VMS V9.1 │ 1000E │ 1 │ MEM │ 23-AUG-2021 08:10 │ 
> > │ CHVAX4 │ VAX 4000-108A │ VMS V7.3 │ 10023 │ 1 │ MEM │ 16-DEC-2021 22:05 │ 
> > │ CAXP24 │ AlphaServer DS10 │ VMS V8.4 │ 1000A │ 0 │ MEM │ 11-AUG-2021 12:13 │ 
> > │ GIGAHZ │ AlphaStation DS15 │ VMS V8.4-2L2 │ 10015 │ 1 │ MEM │ 22-SEP-2021 14:28 │ 
> > │ CAXP15 │ AlphaServer DS10 │ VMS V8.3 │ 10013 │ 1 │ BRK │ 23-SEP-2021 10:59 │ 
> > │ CHAXP2 │ AlphaServer DS25 │ VMS V8.4-2L2 │ 10022 │ 1 │ MEM │ 7-DEC-2021 19:56 │ 
> > │ IMGACT │ HP rx2660 (1.67G │ VMS V8.4-2L1 │ 10021 │ 0 │ MEM │ 23-NOV-2021 14:15 │ 
> > └────────┴───────────────────┴──────────────┴────────┴────┴─────┴───────────────────┘ 
> > ┌───────────────────────────────────────────────────────────────────────────────┐ 
> > │ CLUSTER │ 
> > ├───────┬───────┬───────┬────────┬──────┬───────────────────┬───────────────────┤ 
> > │ CL_EX │ CL_QU │ CL_VO │ CL_MEM │ MEMS │ FORMED │ LAST_TRANSITION │ 
> > ├───────┼───────┼───────┼────────┼──────┼───────────────────┼───────────────────┤ 
> > │ 4 │ 3 │ 4 │ 6 │ 64 │ 4-AUG-2021 00:39 │ 16-DEC-2021 22:05 │ 
> > └───────┴───────┴───────┴────────┴──────┴───────────────────┴───────────────────┘ 
> 
> This is a mix of physical and virtual machines (nodenames starting with 
> "C" are CHARON-VAX or CHARON-AXP instances). Each node has its own 
> system disk, disks can be shared with the documented restrictions (e.g. 
> no ODS-5 for the VAX). 
> 
> Hans.
that's a fine server zoo you have there. I've run a three architecture cluster for software dev/test for years. I should have a go at all four architectures.