You are watching module for
the Sphere Networking and Storage Lesson three piece fair storage.
By the end of this video, you'll understand the storage types available and supported in beast, where with a focus on I p based storage and how to configure it,
fees. Fear can leverage pretty much every storage type out there,
whether it be blocked based, file based or object based in this video, we will be focusing on the 1st 2
block based storage is organized well in blocks.
Each block that holds data has in number and is fixed in size, so a block is typically 512 bytes, or four kilobytes.
The storage device does not keep any meta data about the content of the blocks.
And so there is a need for a file system that keeps track off where data is stored and in which blocks.
Piece Fear uses its own file system, called V M. F s short for VM, where fire System Tau access and control block based stories devices.
Now what based storage can be either directly connected to a server or as a storage area network or sand, which is accessed through a network.
If the Bloc stores device is in the same box as the server itself,
it is referred to as does short for directly attached storage.
This includes Seita drives, SAS or envy Emmy drives, which are access through PC I express interfaces.
If the block storage device is in the sand,
then it is accessed either through an Ethernet network or through a fibre channel network.
Now sand storage will give you access to shared storage, which means storage that is visible and accessible by multiple Yes X. I host simultaneously,
and this is actually very important
because shared storage is the foundation for many V sphere advanced features like the Emotion A, J and DRS
to access sand storage. Your your *** I hosts need specialized adapters called H B A's short for host bus adapters
that can act as initiators.
Now these initiators can be hardware or software, depending on the type off adapters in your service. The communication between his ex I hosts and storage devices is an initiator tow target relationship where the initiator is declined looking for storage
and the target is thes storage device, providing the storage.
When the Essex I access is a block based storage. It formats it using the Vienna Fest file system and then turns it into a data store,
a V M F estate. A store is made off one or more loans
and can be expanded by, I think, more loans to it.
The maximum size off the Manifest Ater store is 64 terabytes.
Now file based storage keeps metadata file location in the form of a hierarchy that greatly facilitates the retrieval of data.
Five. Storage also uses blocks, but they are one bite in size. But unlike with block based storage, data is accessed using named files and not block numbers.
Take, for example, the Lenox file system. It has a hierarchical structure that lets you locate any file using a Siri's off folder names and forward slashes down to the file itself.
So finally, storages managed within operating system through standard system calls that control all basic file manipulation, like creating, modifying, renaming and deleting funds. This standard way off dealing with files is called PAS IX
and is enforced in pretty much all operating systems out there.
The file based storage is controlled by an operating system that uses a file System Tau access data Soviet sphere can leverage file based storage through a distributed file system that crumbs over an I P network.
It's called NFS short for network file system.
So using NFS Yes, X, I can perform any basic operation on a remote server that is providing a file based storage.
let's see how to configure of'em if estate a store using an Ethernet network and ice cosy protocol. And we'll also see how to configure in NFS data store.
And that's coming up in the next video. Thanks for watching.