4.3 File Systems and Backups

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7 hours 31 minutes
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Hello again, you cloud bursting cloud computing cloud consumers and welcome back to cloud architecture foundations. This is module 4.3, storage file systems and storage backups.
So last time we talked about the storage that has directly attached to a server or a workstation that we called as and we talked about network attached storage or nads, which is shared storage accessible over 90 network.
And we learned about when we require a large enough pool of shared storage with storage systems like storage management and backup targets like tape systems. We need to build the separate network dedicated just to storage that we call a sand or storage area network.
And in this video, we're gonna learn about file systems and file systems access to storage. And we're gonna talk about storage backup systems like tape and backing up our data to the cloud. So let's go meet our storage recovery point objectives and recovery time objectives are our pios and art Eos and let's have some fun.
So according to the U. S. Certain United States Computer Emergency Readiness Team, who published there 321 rule of storage in 2012 the 321 rule of storage is pretty easy to remember. Keep three copies of your important data. A primary in two backups always used two different types of storage media. Such a spinning disc or flash memory or backup media like tape
and always store one of your backup copies off site.
It doesn't help you to have all three copies of your critical data all stored at your corporate headquarters, and then the building burns down. That would be three kinds of bad two types of sad and one epic tragedy for you. And what was your promising and highly rewarding I T career until you kept all three copies of your data at H Q. During the volcano. Now let's just say,
Well, you have a lot of free time on your hands.
So I like action movies. And in a lot of the political action movie you see, you'll see the president, the United States or Russia when they're sworn in, getting trained on their nuclear football, the briefcase that always follows the president with the nuclear launch codes in it always fun stuff to watch, and I'm always reminded of the nuclear football when I hear the stories for my customers
that it was their turn to take home the network backup tape
and what's in awhile? You hear about the dog eating the tape or the tape getting lost or stolen. So when your backup tape does get eaten by your dog, that pretty much is a nuclear incident in itself. It is because of the need of getting your back up off premise and using a process that is easy. Those are just two reasons my cloud storage is so compelling toe IittIe organizations.
So before we go much further into storage and in cloud storage and clown backups, we need to understand that every operating system and thus every system that manages data rights and reads the storage blocks in their own way, the way the data is containerized and managed into directories, folders, files and then the actual data is what we call a file system.
Vowels are created and managed by users and applications.
These files reside in file systems. The file systems air map to file system blocks, the file system blocks air, then mapped a logical volumes, which is a way of allocating space on a mass storage device and then these volumes of mass storage or divided up into smaller chunks of data called extents. And then these volumes air map to disk sectors. In the storage system.
Windows uses a different file system than UNIX,
which uses the different file system for linen and so on. And, of course, our cloud providers use their own different file systems as well.
So one of the unique cloud native file systems is the Amazon Web service is elastic file system, or E. F S E. F. S is a cloud native data store that is simple to use, an elastic and scalability and functionality for Lennox based applications. Amazon Web service is E. F s supports petabytes of storage and is fully managed by AWS.
So your organization doesn't have to worry about ongoing maintenance.
To use the F S, you can either access your AWS management console, use an A p I to integrate GFS into your own environment via plug ins or use the command line interface. Eli, you can mount your Amazon native applications or your premise based servers to AWS via A W s Direct Connect
a direct connection from your organization's data center to AWS
or use AWS VPN over the Internet. Cloud file storage is a method for storing data in the cloud that provides servers and applications access to data through shared file systems. Cloud file sharing can be defined as a service that provides access to file data and the cloud to simultaneous users. Security for file sharing
in the cloud is managed with user and grew permissions that control access to the shared file data.
So this light is helpful to show that each of the major clown providers were going to spend some time on in this course, use a different file system. Different backup technologies have different storage file system properties like maximum file share size and encryption capabilities, and so on. It is the expansion of broadband Internet service is that make a cloud storage possible?
And we're gonna talk about some of the pros and cons around cloud storage,
including backups next.
So there are pros and cons for using the cloud, and each cloud providers unique file system structure as our backup target. One of the primary reasons the enterprise is using the cloud for backup storage as that cloud storage is built with five nines or 99.99% up time, Resiliency and redundancy. It's hardened for security, using highly secure to 56 bit
or higher encryption algorithms,
and it's cheaper, too, maintained in your own backup protection systems or systems at your own hosted D our site. The drawbacks include the requirements of reliable access to the storage via the Internet or via a dedicated private connection to a provider like Microsoft Azure Together Connection Service known as express route.
And your storage is only as good as the providers and their service level agreement.
Where s L. A.
There are a lot of things we need to pay attention to when backing up our data to the cloud. Starting with the different definitions of clown backup, we can back up our data directly to the public cloud like AWS or Google Cloud Platform. We can back up to a service provider and their manners data center.
Or you will see Software's of service Clown provider's backing up their data to yet another cloud target what we call cloud to cloud backup.
When we first back up our data to the cloud, the process can take days to copy our entire volume of data to the cloud over the network. But once we go through this laborious process on lee, change data is copied to the cloud, not rescinding everything all over again using the intelligent backup technology we call d duplication. And then any new data to be backed up
data we call incremental.
And we can utilize technologies that align with the U. S. Search storage principles of 3 to 1 by backing up our data in hybrid boat, where we back up locally toe a target like emcees data domain and then also to the public cloud. So we're ensuring two different media types and one not from a storage location.
So when it comes to backups due to some of the limitations of cloud storage, such as the dependence on bandwidth and the slower Artie owes, most enterprises use cloud backup storage targets for their non critical data and use traditional backups like on a promise data protection appliances for their critical data.
Now, remember, you're still going to maintain three copies of your critical data on two different media types with one of those copies out premise.
But that off premise target might be fiber connected to a D R site across campus or town and not the public cloud. You might be surprised, but there is still a huge demand for tape backups. A backup tape can hold now, at the time of recording 12 terabytes of data and tape is reliable and portable. And even though cloud storage and cloud backups are amazing examples of technology,
the technology can get expensive when you start using the cloud for entire backups and large volumes.
The term scalability can also be used to describe your organizational wallet. Needs to support
an organization might be using a form of cloud stories called online storage to back up all their user's personal computer data to the provider's online backup target. Using the Internet, online storage providers will provide with their monthly users subscription the backup software and in point backup storage management tools to back up every user's personal computer
a great service for when the user drops her laptop and the date on the hard drive is damaged or a computer virus destroys, deletes or holds for ransom to user's data or the user laptops get stolen. There are dozens of online storage providers you might have heard of including Back Blaise, Open Dr One Drive and Carbonate.
So one of our network users unplugged her drive while a file was being written. And now their final system is corrupt and in a volatile state. So while you are rebooting their users workstation toe windows restore point. Let's take the opportunity for a learning check.
What are the three rules of storage? According to US Search?
What is the file system?
What are two of the pros or advantages of cloud storage and cloud backups?
And why would an organization use an online storage service? So why don't you go check on your user system or store status? And when your users back online, why don't you come back and see us and we'll review our answers together?
So welcome back. And I hope your user has learned not to unplug her drive while they're writing to it. Uh, so what are the three rules of storage? According to us Cert.
Well, you need to make three copies of your critical data. One primary in two backups. You need to keep the files on two different media types, like flash drives and tape backup, and you need to store one copy of your data off premise such as To the Cloud.
A file system is a way of allocating space on a mass storage device that divides up the storage into smaller volume of bases that are mapped to the actual storage media. A few the pros of cloud storage, including accessing the storage from anywhere built in redundancy and low cost. And there are several reasons why your company might use an online storage service,
including an automated way of backing up your end users PCs via software and the service
of the online storage brokerage house.
So today we learned about some of the unique characteristics of file systems, including clown file system types like AWS Elastic File System E. F s. We learned about the rules of backups, where we need three copies of our critical data on two different media types, with one of our copy's being off premise, and we learned about tape backups, cloud backups
and the unique advantage of each backup target.
Next time we get together, we'll close out our storage module with business continuity, continued operations, coop and disaster recovery.
So, on behalf of all of us cyber and security I t learning team. We want to wish you and all of the users on your network for well, thank you and happy packets.
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