Subj : Re: 2017/2018 PC to modernize it.
To   : Poindexter Fortran
From : Weatherman
Date : Tue Nov 08 2022 17:36:33


pF> Sounds like something we're doing at work with our SD-WAN and firewalls.
pF> We were able to extend a subnet from one office to another during a
pF> server migration. Pretty wild stuff, the last time I did networking as
pF> part of my job networks were physically isolated.

Virtualization was a game changer, as is flash storage to SANs.  We went from having explosive growth of pizza box severs taking up loads of space and power, to a few racks of high end blades that are fiber channel attached to flash storage arrays.  

The entire data center can run in a few racks.  You can have petabytes of storage in a single rack.  No more city blocks of old mainframe DASD.  My cell  phone has more storage than many mainframe systems did back in the late 80s.

- Mark
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