Right.
With all those inches out of the way.
Let's dive straight into the meat now and let's just take an introduction to virtual machines.
Anybody that's not familiar with virtual machines it helps you just think about how your computer operates.
Right so you have some hardware you have CPR you memory and disk.
And on top of that you have your operating system.
So this could be Microsoft Windows could be Mac OS.
And on top of that we obviously have our applications that we install.
Well along came virtualization many years ago now and the concept is still very similar.
We still have our hardware.
So we still have to run our applications somewhere and we have our CPA memory and disk but we install
something in between which is the hypervisor.
And on top of the hypervisor can live multiple operating systems with multiple applications.
So instead of just running one operating system that may only get used you know 10 percent of the time
we can run multiple operating systems make much more use out of that CPE memory and disk and every single
one of these is essentially our virtual machine.
And when we in Azure we're basically doing the same thing.
We don't manage the hypervisor on premises you would typically manage something like VM where iOS 6
while Microsoft type of V but in the public cloud Microsoft presents us with a whole bunch of options
for provisioning now virtual machines.
And that leads us onto a really really cool thing which is all of the VM types available to us.
Typically on premises we would have you know one or maybe two different variations of host and every
time Intel releases a new Pew we would upgrade those hosts.
But in the public cloud because you know just the scale that they have you have multiple choices available
to you.
So if we go through these it's very important to understand and select the right instance type for your
workload and a series with a very first series that Microsoft introduced that divided up into basic
and standard.
So standard are actually our general purpose VMs.
And then there's a basic version of a series for testing and development then we get on to B which I
remember is B for busting all these instances can bus to the full capacity of the CPE when needed but
you get a discount because you're not using the machine a lot of the time so it's storing CPE credits
and then when it has to consume CPE you can use those credits and you know use the full capacity of
the CPA.
Now if you're going to use the CPA continuously it's obviously not going to make sense because you don't
get to storing credits and you're going to get worst performance but a very cost effective option then
I highly encourage people to use them during some of the labs and things as well at D as the general
purpose ones you'll see a lot of these around in the enterprise.
And then we have memory optimized These are the E series you'll see that some other memory optimized
ones out there.
This is the newest memory optimized series.
They they brought out recently this is a high memory to CPE core ratio.
Then we go into the F Series immediately off to memory optimized is you you optimized and this is the
reverse.
So if a high CPE you call to memory ratio and so it's kind of the opposite of the E series that the
G series you know Microsoft calls us the Godzilla.
At least that's what people tell me when I'm walking around you know marks of tech nights and various
conferences very large instances.
Hence the Godzilla name there.
A large databases big big data use cases.
Then we got high performance compute you know computational molecular modelling scientific applications
that's the H series The L series is for storage.
I remember this as L for Lun like in the traditional sense of storage.
And these are you know storage optimized with a high disk throughput and high Io.
Then we got the M series another very large memory series available these go actually much much larger
than the E series.
You can go up to three point five terabytes of RAM here.
Then we have the end series are actually divided up into envy and c depending on the type you choose
then what book configuration you require.
But these are graphics card enabled instances.
And finally we have A.S.A.P. Hana on Azure certified instances as well.
So as you can see just just a ton to choose from that.
And then we go into the specialization.
So if you just got your head around I can go to these types.
Well now there's different specializations and you notice this in the way the instance types are written
out.
So for example we've got s for premium storage.
So if you C D series you'll also see a D s version.
So DSP 2 that's a premium storage option that we have the M specialisation as well that's for large
a memory of a configuration type.
So if for example we've got a standard a two then you might see a standard a two m that just has a more
memory.
And then the final one we have are which is supports remote direct memory access also known as audio
may and you'll see that by things like h 16 m r as well.