JD Edwards & Peoplesoft 2 _ Mark Elley _ Real word experiences disaster recovery.pdf

Real
World

Disaster
Recovery

Mark
Elley

The most comprehensive Oracle applications & technology content under one roof

What
is
a
Disaster?

Definition: dis·as·ter noun /diˈzastər/
disasters,
plural

•  A sudden event, such as an accident or a natural
catastrophe, that causes great damage or loss of
life- 159 people died in the disaster
•  - disaster struck within minutes of takeoff

•  An event or fact that has unfortunate
consequences- a string of personal disasters
•  - reduced legal aid could spell financial disaster

•  A person, act, or thing that is a failure- my perm is
a total disaster


Disaster

Bad
Perm


Types
of
Disaster

•  Natural
Disaster

–  Earthquake

–  Tsunami

–  LiquefacEon

•  Other
Disaster

–  Fire

–  Flood

–  Infrastructure
failure


SENDAI

Japan

March
2011


Japan
-‐
Earthquake
&
Tsunami


Building
Damage


Infrastructure
Damage


Tsunami


Christchurch

New
Zealand

September
2010

&

February
2011


Christchurch
-‐
Earthquakes


Building

Damage


DestrucEon
&
Human
Tragedy


Brisbane

Australia

January
2011


Inundated


Stock
Recovery


Server
Recovery


All
of
the
Disasters
above
have

occurred
in
the
last

12
Months


What
about

Localised
Disasters?


Disaster
-‐
FIRE


Disaster

FLOOD


Infrastructure
Failure

1998
Auckland
CBD

Three
Week
Outage

Container
Ships
plugged

into
the
grid
to
provide

some
supply…


Could
Your
Business
Survive
A
Disaster


Disaster
Recovery

•  Focussed
Overview
of
Recent
Experience

•  Predominantly
with
JD
Edwards
in
mind

–  Purpose

•  Lessons
learned
from
the
ﬁeld

•  What
works
best
/
What
doesn’t?

•  What
ﬁts
your
business
expectaEons
for:

–  Return
to
OperaEon
(RTO)
?

–  How
long
can
the
business
survive
without
this
core
system

•  Is
distance
a
factor?


Business
ConsideraEons

•  Human
Resource
Issues

–  Staﬀ
dealing
with
personal
&
family
issues

–  Key
staﬀ
oeen
have
to
step
up
beyond
the
call!

•  Site
Access

–  Days
to
get
an
engineer
to
give
the
OK
to
site
access

–  Building
irreparably
damaged

–  Servers
&
server
room
destroyed

–  Physical
constraints
–
i.e
Roading

–  And
Many
More!!!


Provoking
Thought

•  What
is
in
place
today
if
a
disaster
occurred

•  Do
you
have
a
true
DR
strategy
or
HA
only?

•  Could
you
be
conﬁdent
that
your
business
would

conEnue
to
operate
in
the
event
of
a
disaster?

•  Can
you
put
a
cost
to
each
hour
of
outage
for

your
business?

•  Can
you
keep
doing
business
with
system
users
in

other
ciEes?

•  Does
your
business
need
up
to
the
Nano-‐second

data
or
point
in
Eme?


Typical
Infrastructure

Produc6on

Test
/
DR


Scenario
One

•  Earthquake
–
city
wide
impact
–
huge

destrucEon
–
server
room
within
the
cordon
–

liquefacEon
in
the
server
room
–
building

structurally
unsound.

•  Decision
made
early
to
switch
to
DR
soluEon

in
another
city.

•  But!!!


Scenario
One
-‐
LiquefacEon


Scenario
Two

•  Earthquake
–
city
wide
impact
–
huge
destrucEon

–
server
room
within
the
cordon
–
no
power
to

server
room
–
limited
access.

•  DR
site
was
in
the
midst
of
change
–
switching
to

DR
might
be
painful.

•  Generator
onsite
within
24
hours

•  Decision
made
to
stay
with
the
producEon

system
located
on
the
customer
site.

•  But!!!


Scenario
Two
–
No
Electricity

Do
you
have
access
to
one
of
these?


Scenario
Three

•  Earthquake
–
city
wide
impact
–
huge

destrucEon
–
server
room
within
purpose

built
data
centre
–
limited
outage.

•  Cross
city
DR
site
did
not
need
to
be
invoked

•  Within
an
hour
all
other
sites
were
working
as

normal.

•  Local
staﬀ
could
focus
on
family
and
conEnue

to
access
systems
remotely
as
infrastructure

allowed


Lessons
Learned

•  Do
you
have
split
ProducEon
&
Test
/
DR

infrastructures?

–  Test
/
DR
ensures
that
your
DR
is
ready
for
acEon!

•  Network
&
Infrastructure
are
constantly
used
(tested)

•  Do
you
have
a
DR
strategy?
–
GREAT!

–  Have
you
tested
it
recently?

–  Did
you
deploy
a
JDE
full
package?

•  A
‘Purpose
Built’
data
centre
is
best
for

ProducEon
-‐
Why?

•  Test
your
DR
strategy
regularly


What
Worked
–
What
Didn’t?

•  Data
ReplicaEon
–
sorted
J

•  Server
images
or
backups
in
hand?

–  Where
is
the
last
full
backup
of
this
machine?

–  What
do
you
mean
you
backed
up
the
structures

ONLY!!!

–  Where
are
the
JDE
installaEon
CDs?

•  Don’t
neglect
your
deployment
server

•  Ensure
your
client
technologies
are
covered

•  Any
business
criEcal
3rd
party
systems?


Is
Distance
a
Factor?

•  Absolutely
–
you
don’t
want
your
DR
too
close

–
RIGHT?

•  Too
far
apart
–
shipping
consideraEons

–  Comms
costs
consideraEons
for
ANZ

•  Too
close
and
both
instances
are
aﬀected

•  20km+

=

Ideal
minimum
separaEon


In
Summary

The
solu6on
that
I
have
seen
work
best
is
as
follows.

•  Split
ProducEon
and
Non
ProducEon
(Test/DR)
infrastructures

•  ProducEon
hosted
in
a
purpose
built
hosted
facility
where
security,

power
circuit
redundancy,
generators
and
diesel
fuel
stocks
are

available
to
ensure
24x7
security
and
electricity
supply.

•  Non
producEon
either
hosted
in
an
alternate
facility
or
on
site
at

the
customer’s
premises
20+
kms
from
the
producEon
data
centre.

•  100Mb
metropolitan
LAN
or
equivalent
available
to
service

communicaEons
requirements
between
the
two
sites

•  Test
the
soluEon
regularly
&
ensure
your
backups
are
appropriate


Build
Your
DR
SoluEon

to
match
your

Business
ExpectaEons

No
CEO/CIO/CFO
aﬀected
by
the
Christchurch

earthquakes
has
wanted
to
reduce
their
disaster

recovery
protecEon
aeer
recent
events.

Most
have
requested
a
full
DR
review

Many
have
implemented
stronger
soluEons.


Disaster
Recovery

ARE
YOU
READY


JD Edwards & Peoplesoft 2 _ Mark Elley _ Real word experiences disaster recovery.pdf

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JD Edwards & Peoplesoft 2 _ Mark Elley _ Real word experiences disaster recovery.pdf