30 Sep
2019
30 Sep
'19
12:39 p.m.
On 2019-09-30 1:27 p.m., Diane Bruce via cctalk wrote:
Yes I suspect anything that HP may flog as nonstop these days would be a
high availability cluster which would probably include shared storage.?
SAN has made shared storage trivial and even allows you to spread the
nodes in the cluster geographically. When I first encountered HA cluster
the shared storage was parallel SCSI with an initiator in each system.?
The first that aloowed you to spread the nodes enough to have them in
different building used IBM's SSA, a predecessor of SAN, to connect the
storage.
Paul.
On Mon, Sep 30, 2019 at 10:57:25AM -0500, Jon Elson
via cctalk wrote:
All of the Canadian banks used Tandem systems to front end the Interact
it was part of the initial plan for that system.
Paul.
On 09/29/2019 11:46 PM, Jason T via cctalk
wrote:
I remember hearing that the credit/debit card
database we were talking
to was a Royal Bank Tandem in Toronto when I was first involved
with Point of Sale protocols. Well I said no more computers I can't lift,
but exotic systems keep
finding me. So today we pulled a Tandem CLX out of a basement, along
with a few boxes of docs, 9-track tapes and random odd and ends:
https://photos.app.goo.gl/m2N7RKN3JXcmVTUC8
There's such as thing as "so obscure that no one knows/cares about
it". I've had those before. Do I have another? It sure is heavy.
-j
Tandem was hot stuff back in the 1980's. These appear to be
the last gasp of their technology. Once you had fast networking between processors,
the whole
Tandem concept became pretty easy to do on a few ordinary
processors, without special hardware. So, their whole
reason for being became moot.
Indeed. Jon
Diane