81Y4479 IBM Serveraid M5120 SAS SATA PCI Express 3.0 X8 Controller. New Bulk Pack.

IBM 81Y4479 Serveraid M5120 SAS SATA PCI Express 3.0 X8 Controller is a server RAID controller that is used to manage data on hard drives in servers. In this article, we will take a detailed look at the features and benefits of this controller and how it can be used to improve server performance.

Definition a RAID controller

A RAID controller is a hardware device that is used to manage the data on hard drives in servers. It allows multiple hard drives to be combined into a single logical unit, which provides better performance, data redundancy, and data protection.

Features

The IBM 81Y4479 Serveraid M5120 SAS SATA PCI Express 3.0 X8 Controller is a high-performance RAID controller that provides several features to improve server performance. Some of the key features of this controller are:

• SAS and SATA support: The controller supports both SAS and SATA hard drives, which allows for greater flexibility in configuring the storage subsystem.
• PCI Express 3.0 x8 interface: The controller uses a PCI Express 3.0 x8 interface, which provides high-speed data transfer between the controller and the server.
• RAID support: The controller supports several RAID levels, including RAID 0, 1, 10, 5, 50, 6, and 60. These RAID levels provide different levels of data redundancy, performance, and data protection.
• Cache memory: The controller has a built-in cache memory, which can be configured to improve read and write performance.
• Battery backup: The controller has a battery backup unit (BBU), which provides backup power to the cache memory in case of a power failure. This helps to prevent data loss and corruption.

Benefits

Using the IBM 81Y4479 Serveraid M5120 SAS SATA PCI Express 3.0 X8 Controller provides several benefits for servers, including:

• Improved performance: The controller provides high-speed data transfer between the server and the hard drives, which can significantly improve server performance.
• Data redundancy: By using RAID levels such as RAID 1, 5, or 6, data redundancy is improved, which reduces the risk of data loss in case of a hard drive failure.
• Data protection: The controller provides several RAID levels that provide different levels of data protection, which helps to prevent data loss and corruption.
• Cache memory: The controller’s cache memory can be configured to improve read and write performance, which can provide significant performance improvements for servers.
• Battery backup: The controller’s battery backup unit provides backup power to the cache memory in case of a power failure, which helps to prevent data loss and corruption.