So let’s begin by talking about storage systems, the architecture of a storage system, and the different types of storage systems. A storage system is a hardware component that houses multiple storage drives within a cabinet. These drives provide a very high capacity storage pool for enterprise use. A storage system is also called a storage array. A large storage system can provide many petabytes of storage capacity. A storage system has two primary components: the storage drives and the storage controller. The storage drives in a storage system can be either disk drives, or SSDs, or a combination of both these drive types. Multiple drives of the same type are arranged in a drive enclosure. Multiple drive enclosures are then assembled inside a storage system cabinet. The storage system cabinet has integrated
power supply and cooling systems.
Apart from the storage drives, the other key component of a storage system is the storage controller.
A storage controller is a computer that is housed in the storage system cabinet along
with the drive enclosures. The storage controller has a processor, memory, and cache. A specialized operating system is installed on the storage controller that manages the storage system. A storage system may also have two storage controllers for high availability. In some implementations the storage controller may even be connected externally to the storage system. This connection may be a direct one
or over a network. The OS of the controller essentially provides intelligence to the storage system. It enables the storage system to meet enterprise requirements such as capacity, scalability, performance, business continuity, and security. If you recall, we covered these requirements in the first week of this course.
The OS manages capacity and provisioning, and also provides a number of enhanced features such as storage pooling, security, and capacity optimization. We will cover these features in a later video in the course. Servers connect to a storage system through the storage controller. As we discussed in the first week, servers may connect to a storage system either directly or over a storage network. With networked storage, multiple servers can connect to a storage system over a storage network, such as a 10 Gbps Ethernet or a 16 Gbps Fibre Channel network.
power supply and cooling systems.
Apart from the storage drives, the other key component of a storage system is the storage controller.
A storage controller is a computer that is housed in the storage system cabinet along
with the drive enclosures. The storage controller has a processor, memory, and cache. A specialized operating system is installed on the storage controller that manages the storage system. A storage system may also have two storage controllers for high availability. In some implementations the storage controller may even be connected externally to the storage system. This connection may be a direct one
or over a network. The OS of the controller essentially provides intelligence to the storage system. It enables the storage system to meet enterprise requirements such as capacity, scalability, performance, business continuity, and security. If you recall, we covered these requirements in the first week of this course.
The OS manages capacity and provisioning, and also provides a number of enhanced features such as storage pooling, security, and capacity optimization. We will cover these features in a later video in the course. Servers connect to a storage system through the storage controller. As we discussed in the first week, servers may connect to a storage system either directly or over a storage network. With networked storage, multiple servers can connect to a storage system over a storage network, such as a 10 Gbps Ethernet or a 16 Gbps Fibre Channel network.
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