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What is the Evolution of Storage Systems?
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For a long time, servers and personal computers had their storage built-in. Each server could only access its own drives.
This model created complexities and made it very inefficient to manage server storage. For example, if you had two servers, one server utilizing 90% of its storage while the other was only using 10%, the additional storage in the second server can’t be shifted to the first. Sysadmins needed to estimate the required amount of storage in each server carefully.
Each server needs to be managed individually, too. That means administrators need to configure and deploy things like storage quotas and security policies to each server separately.
Around the early 2010s, vendors like Cisco and HP started to create a converged infrastructure. The converged infrastructure is a bit of a misnomer, however. Vendors basically made batches of products that worked well together. This means those vendors could offer better support since these products could integrate with each other, too.
That’s not to say that a converged infrastructure didn’t have advantages. Storage was moved out of the server and into the SAN. SANs can better utilize things like RAID arrays and various file systems than an individual server can. SANs are also much easier to manage since the entire storage system falls under the umbrella of a single system.
Around the mid-2010s, vendors created the hyper-converged infrastructure. This model moved the storage devices back into the servers. Companies like Cisco took what they learned from the previous two models and new requirements in the data center and improved on it. Think software-defined networking.
That’s the beauty of HCI. Much like a single management application can manage an entire network in an SDN, HCI only requires that single management application. Storage devices can be distributed between systems but are all managed from a single interface. That also means servers can share storage, quotas don’t need to be managed per device, and security can be implemented at the storage, server, and networking levels. That’s incredibly powerful!
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Connect with CBT Nuggets for the latest in IT training:
#datastorage #cisco #san #ittraining #cbtnuggets
This model created complexities and made it very inefficient to manage server storage. For example, if you had two servers, one server utilizing 90% of its storage while the other was only using 10%, the additional storage in the second server can’t be shifted to the first. Sysadmins needed to estimate the required amount of storage in each server carefully.
Each server needs to be managed individually, too. That means administrators need to configure and deploy things like storage quotas and security policies to each server separately.
Around the early 2010s, vendors like Cisco and HP started to create a converged infrastructure. The converged infrastructure is a bit of a misnomer, however. Vendors basically made batches of products that worked well together. This means those vendors could offer better support since these products could integrate with each other, too.
That’s not to say that a converged infrastructure didn’t have advantages. Storage was moved out of the server and into the SAN. SANs can better utilize things like RAID arrays and various file systems than an individual server can. SANs are also much easier to manage since the entire storage system falls under the umbrella of a single system.
Around the mid-2010s, vendors created the hyper-converged infrastructure. This model moved the storage devices back into the servers. Companies like Cisco took what they learned from the previous two models and new requirements in the data center and improved on it. Think software-defined networking.
That’s the beauty of HCI. Much like a single management application can manage an entire network in an SDN, HCI only requires that single management application. Storage devices can be distributed between systems but are all managed from a single interface. That also means servers can share storage, quotas don’t need to be managed per device, and security can be implemented at the storage, server, and networking levels. That’s incredibly powerful!
-----------------
Connect with CBT Nuggets for the latest in IT training:
#datastorage #cisco #san #ittraining #cbtnuggets
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