are you looking to learn about disaster
recovery in cloud computing
if so this video is for you
[Music]
hi my name is michael gibbs and i'm the
founder and ceo of go cloud architects
and we're an organization dedicated
towards building high performance cloud
computing careers
i've been working in technology for well
over 25 years now and i've been coaching
or mentoring others to get their first
tech job or get promoted in tech
for over two decades and today we're
going to talk about cloud disaster
recovery
now when you're doing disaster recovery
on the cloud you're really advantaged
the cloud is really a wonderful place
for disaster recovery
compared to what we used to have to deal
with with data centers and disaster
recovery options so because of this
we're going to give you the four cloud
disaster recovery options and we're
going to talk about the strengths
and weaknesses of each approach now
there's lots of terms like hot standby
and pilot and all these are used by
various cloud providers but a lot of
times people have their own definitions
so what we're going to talk about is the
four methodologies for cloud disaster
recovery
and we're going to do them in generic
plain simple english terms and no matter
where you work
you're going to understand it the first
option is what i call
backup plus and what i'm really talking
about here is the first type of disaster
recovery is basically you have your data
center or your vpc it doesn't matter
and you basically make machine images of
every type of server you possibly have
and move it to the cloud
and you basically take your data and you
copy it over to the cloud
at relatively frequent interviews that
is your first opportunity it's basically
backing up
your data and backing up your systems
moving them to the cloud leaking them
there
and if and when anything were to happen
you would launch the virtual machines
and then you would basically have your
data there now
there's strengths and weaknesses of each
approach the strength of this approach
is this is an incredibly cheap form of
disaster recovery
and it's highly effective because you
can basically copy everything over
and you're not paying much other than
the storage fees now here's the downside
let's say you want to bring your systems
online this isn't going to be that fast
it might take you 8 10 12 hours to do so
but
you can get your systems up and running
relatively quickly because you've copied
your
you basically copied your servers in
terms of machine images and you copy
your data
so that is option one basically make
copies of your servers plus your data
now let's say you wanted something a
little better but still on the cheap
side
what organizations typically do is again
this is version number two so this is
your second disaster recovery and cloud
computing option
is basically you make machine images of
all your servers and move them to the
cloud
and you take your data periodically
synchronizes to the cloud but you keep a
database on the cloud
and and you also keep the database in
either your data center or in your vpc
and you synchronize them and by doing
this your systems are more up to date so
basically you've got machine images and
a synchronized database
so with this cloud disaster recovery
option two what's going on is basically
we've got machine images and basically a
database that's active and store data
and this can come on faster online
because your databases are synchronized
but again this is still a relatively
slow option
but it's a very cheap option and it's a
very good option for lots of people
for disaster recovery and cloud
computing
next we're going to start to get into
really good options when performance is
needed for disaster recovery
this next option which is many people
would call say a warm standby is as
follows
basically you take your data center or
your vpc it really doesn't matter
you replicate it to the cloud with small
compute instances and auto scaling
groups
so let's say i've got 100 web servers
here of a certain capacity maybe i just
put one web server and i keep it up and
running
maybe i have a couple app servers here
maybe i have a single web server up and
running
maybe i've got my database here my
database is synchronized over here
everything is basically a small version
of what exists
and you've set up a dns policy which
will basically say go from your data
center
to the disaster recovery option or your
vpc to the disaster recovery option
and as soon as a failure is detected by
dns your traffic will be rerouted
to your disaster recovery center which
is most likely just a vpc in the cloud
and systems will be online auto scaling
will take them up and in about 45 to 60
minutes you have an
environment that's going to dynamically
bring itself offline online
and take care of all your customers so
this is a really good option
basically what's going on is you've got
a cheap small instance running here
your databases are synchronized and your
data synchronized
and as soon as there's an outage
basically auto scaling comes in
in in scales up and poof you're up and
running
very low cost or moderately low cost way
to basically have
a really high availability failover
solution that may take 45 minutes
but that's still pretty fast and it
happens in an automated fashion
now the last type of disaster recovery
option is basically a hot hot
environment
now i've been designing these systems
forever because i've been working in
super high availability systems systems
that need to be five nines or better
and these organizations do as follows
basically whatever they have in their
data center
or their vpc they have a complete mirror
image of it in the cloud
100 full capacity running at all times
if you've got 100 web servers in your
data center or your vpc you're going to
have 100
web servers running in your your in the
vpc that would be your disaster recovery
place
same thing and if anything were to
happen basically what happened is your
dns will be running a health check and
it'll basically be checking your data
center or your main vpc and it'll say
okay
not there dns will reroute your traffic
to your disaster recovery option and
it'll be up and running in seconds
so this is the fastest way to bring your
systems online but it's also the most
expensive because you have basically a
copy of your data center
in the disaster recovery region so let's
go over these four options again
strengths and weaknesses
basically you've got your machine images
plus your data it is the slowest
environment to bring back but it is
really cheap and is a great way for any
business to have a disaster recovery
option
people that could never afford disaster
recovery before now have a suitable
option
next option on the second cheapest but
still a second slow
or it's going to be the second slowest
if the disaster were to happen is you
basically have your amis which you bring
over to your disaster recovery
which are basically copies of your
virtual machines as well as you
synchronize your database
option two relatively long recovery but
faster because your databases are
synchronized
three basically keep a warm system
basically have your whole system set up
in your data center your vpc
and basically in your disaster recovery
place basically have basically single
instances small instances and auto
scaling groups that can scale up as
needed and if a failure occurs they'll
automatically dynamically scale up
but it's going to take 30 minutes to an
hour to be at full performance but at
least you know it's going to happen
dynamically
and for those organizations that can't
tolerate downtime at all there's the hot
hot standby environment
where basically they've got a data
center or their vpc and they've got an
identical copy in the disaster recovery
environment
there you go these are your four cloud
disaster recovery options
and today we talked about disaster
recovery and cloud computing
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i'd like to thank you all so much for
watching this video it's been an honor
and a privilege to be working with you
and talking to you and bringing you as
part of the cloud
architect community so i i take this no
i don't take this lightly and it's an
honor to be part of this
thank you for watching and go cloud
architects we do everything we can to
help you build your cloud computing
careers we look forward to seeing you in
another video
very soon take care