In the mid-2000's,
our organization started to get serious about disaster recovery. By that time
our core application was an e-learning application that was heavily used (a
hundred thousand students on a typical day). That app became critical to our
mission.
To bootstrap a DR capability we paid
consultants for what was at best a craptastic DR plan. The plan was not
implementable under any realistic scenario.
The consultants
ignored our total lack of a DR site, insisted that we could buy servers
overnight, and that because every server had its own tape drive, we could hire
an army of techs from Geek Squad and recover all servers simultaneously from
individual tape backups. Of course we had no failover site, no hardware, and we
had tape-changers and a Legato infrastructure that streamed and interleaved
multiple backups onto a single tape instead of individual tape drives in each
server. I couldn't imagine buying dozens of servers and successfully recovering
in any reasonable time frame. The consultants formally presented a 56 hour RTO to
our Leadership, when my own gantt charts showed a 3-week RTO after we had a DR site leased, a data center
network built, and hardware purchased and racked. So I pushed back hard - and
stopped getting invited to the meetings.
They used nice fonts
though. Give them credit for that.