Time
5 hours 18 minutes
Difficulty
Intermediate
CEU/CPE
20

Video Transcription

00:04
M. C s a Windows server 2012 Exam for 12. Configuring advanced windows Server 2012 Service is marginal. Tain in this module, we're gonna be looking at implementing fail over clustering
00:17
Less than one has to do it. Overview of fellow bar cluster and we're going to carry overview of fellow about clustering
00:24
We're going to get stuff such as What is I Availability
00:27
Fill of our cross to improve many Windows Server 2012
00:32
Unless in two we're gonna look are implemented fill of our clustering
00:36
and then we'll have the lab
00:38
Lesson one of a view of Phil of are clustered What is I availability? High availability is very important.
00:46
Past characteristics off many I t system
00:50
in the wall
00:51
One of the most important is availability
00:54
availability We frost the level of service that application service of system provide
01:00
Everybody wants their system Toby up 24 7
01:06
3 65 days a year or 3 66 days in a leap year
01:11
But sometimes they're hard to attain that.
01:15
So our availability so so system are available
01:19
more than 90 you know Means the service are Belmont. I'm 99% of the time.
01:25
I availability requirements. They're far from one system to another.
01:30
Now
01:33
there's some. There's a measurement we use for availability. For example, we have 99
01:38
0.9% of ability of a one year period
01:44
allow for 8.75 hours off downtime. Talk about unplanned downtime.
01:52
Um,
01:53
so we have. Ah.
01:55
But the most important thing is we're gonna make sure our service is are available.
01:59
Applications are available to authorize user when it's needed.
02:02
Like I said, nobody wants it down time.
02:07
Phil Over crossed her improvement window. Several 2012 includes
02:10
increase scalability.
02:14
Okay.
02:16
Um, for example, we December 2012 they feel of our crossed yr can have 64 physical notes physical machines on. They can run 1000 virtual machines each.
02:30
That means each note kind around that
02:31
this is a significant improvement for Windows Server 2008. The only allow 16 physical knows any 1000 virtual machine part cluster
02:44
also cluster our way. Updating
02:46
That's a new feature in Windows 7 2012
02:51
What does that do? Is a new technology to allow you to update your cross the nodes
02:57
with Mike Microsoft Hot fix off the hot fix
03:01
by still keeping a crossed online. I'm that way you minimize downtime.
03:07
Also, we have our integration. We have active directory integration, improvement.
03:14
Um,
03:15
for example, you know, since 2008 meters server 2008 fill of are clustered has been integrated with active directory Domain service's. But in 2012 there's been an improvement.
03:28
Now administrators can create cross the computer objects, you know, use
03:34
you okay
03:35
or by defaulting the symbol you as a close to node.
03:39
Also, we have management improvement.
03:45
You know, if you look at it,
03:46
ah, fit of are crossed in 2012 uses similar
03:50
Management Council so such as the ones we have a window 7 2008
03:55
board is some also some management improvements.
04:00
Um, for example, we have now part new partial command. Let's we can use to manage. Our klosters
04:09
became might across the retro machines applications
04:13
on Also, we can create Islay available ice cozy
04:16
targets.
04:20
Now, Phil, over cross the components.
04:26
If Phil of our cluster You know, Dr Joe knows a group of independent computers that work together to increase availability off application and service is
04:36
physical cables and software connected close to server known as notes.
04:43
If one of the nodes are computer should fail another Notre Computer begins to provide service. This is called Fell Over.
04:53
That's what got components that we have in fell of a cluster.
04:56
One of the main components is the note.
05:00
These are computers that a member of the feel of a cluster
05:04
these computers won't cross to service is this. Computers are resource is an application applications associated with a cluster.
05:15
Then we have a network, which is our component.
05:19
This network,
05:20
um, network, allow the crossed her to communicate with one another on with the clients machines that could use the cluster
05:31
resource
05:33
resource is enchanted as hosted by a node.
05:38
The resource is managed by across the service can be stopped, can be started, are moved to another node.
05:47
Then we have it crossed storage
05:51
the story systems usually shared between crossers.
05:57
You know, in some scenarios, such as close to a service running
06:00
Microsoft makes jinx server.
06:03
You know it was here. I'm
06:06
If you're running my Microsoft Exchange service, she s storage is not required.
06:15
Crites These are computers or users that utilize the close to service.
06:23
Then we have another components such as, ah, service application.
06:28
This is the software
06:30
um entity does presented to declines are used by day clients.
06:36
Then we have a witness.
06:41
Witness can be a file share or distance used to maintain quorum.
06:46
Normally, the witness will be located on the network that is both logically and physically separate from those used by the feel of a cross. Her
06:56
However,
06:57
the witness must remain accessible. Toe across the node members.
07:02
Next topic we're gonna talk to be talking about is what I fail over and fail back.
07:10
Fell over trying to start a restaurant's beauty of providing access to resource is in across there. From one note to another,
07:17
I will feel over occur. Let's look at it,
07:21
Philo are Carl Wended knows that scar anklets servicing
07:25
the clients become inactive for any reason. Maybe crash or something
07:30
like that. Ah went offline for some reason.
07:35
Our fellow our cause
07:38
what? Sometimes when the administrator forces, they fell over
07:42
by moving service, bringing a note out of service
07:48
or one of the resource within the instance fails.
07:53
What is a quorum is an ex topic.
07:57
It Karam is a number of elements that must be online for across the to continue running
08:05
each element can vote
08:07
can cast one vote to determine where that across to continue to run
08:11
each cluster.
08:13
No, it is an element,
08:16
you know, you know, and each cost owners and Amanda has one vote it across to know it wasn't as one vote
08:26
in case there's an even number notes, Then an additional element, which known as Witness, is assigned to the cluster.
08:35
The witness element can be either disc all file share.
08:45
So Karami's based on votes in window 7 2012
08:50
Quorum allows no notes, far shares or share days to have a vote.
08:56
You know, depend on decorum. Mood, of course.
09:01
Quorum and nibbles the feel of across her to remain in line when sufficient votes are available.
09:09
Next time we go look at now, it's star fell over across to storage.
09:16
Their fill of across the storage
09:20
requires *** stories to provide consistent data
09:24
to virtual server after feel over
09:30
your *** story. Options could include
09:33
scars. E
09:33
Syria attacks, cozy ice cores it, which is Internets, cozy
09:39
fiber, China. Or she had V H. D. X,
09:41
which is available Windows server 2012. Really stupid.
09:46
You can also implement cross the story space
09:50
to achieve our availability at his story level.
09:56
So we are bash. She, um such cereal,
10:01
Scott. See? ***. Um,
10:05
attacks cosy.
10:05
We have ice cosy,
10:09
but you took about in chapter two. I think.
10:11
Um, are you two?
10:13
We have fiber China.
10:18
We have a shared V x v H D x.
10:24
Those are the storage is,
10:26
um, that I available which
10:31
Philip Clustering Windows Server 2000 and 12.

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