What is a RAID controller?

wissal · Created Sep 30, 2021 18:47:19

Hello,

A RAID controller is a hardware device or software program that is used to manage the hard disk drive (HDD)/solid state drive (SSD) in a computer or storage array so that they can work as logical components and perform their own duties.
The controller provides a level of abstraction between the operating system and the physical disk drive. The RAID controller groups applications and operating systems according to logical units, based on which data protection schemes are clarified. The controller has the ability to obtain multiple data backups on multiple physical devices, so its ability to improve performance and protect data when the system crashes is highlighted.
In hard disk-based RAID, the physical controller is used to manage the RAID array. The controller takes the form of a PCI or PCIe card, which is specially designed for a specific drive format (such as SATA or SCSI). The RAID controller can also be just software, using the hardware resources of the host system. Software-based RAID often provides functions similar to hardware-based RAID, but its performance is usually not as good as hardware-based RAID.

Thanks

Gustavo.HdezF · Created Sep 30, 2021 18:36:00

Hello User. we are reviewing your question and we will answer you shortly. Thanks.

wissal · Created Sep 30, 2021 18:47:19

Hello,

A RAID controller is a hardware device or software program that is used to manage the hard disk drive (HDD)/solid state drive (SSD) in a computer or storage array so that they can work as logical components and perform their own duties.
The controller provides a level of abstraction between the operating system and the physical disk drive. The RAID controller groups applications and operating systems according to logical units, based on which data protection schemes are clarified. The controller has the ability to obtain multiple data backups on multiple physical devices, so its ability to improve performance and protect data when the system crashes is highlighted.
In hard disk-based RAID, the physical controller is used to manage the RAID array. The controller takes the form of a PCI or PCIe card, which is specially designed for a specific drive format (such as SATA or SCSI). The RAID controller can also be just software, using the hardware resources of the host system. Software-based RAID often provides functions similar to hardware-based RAID, but its performance is usually not as good as hardware-based RAID.

Thanks

user_3134129 · Created Sep 30, 2021 19:24:59

RAID controller can be implemented in hardware and in software (mdX on Linux OS family)
RAID implement data manipulation to collect some physical drives and create virtual drive with special properties - more capacity or/and more reliability

user_4147187 · Created Oct 1, 2021 03:12:37

Hello,
RAID controllers are hardware devices or software programs that manage hard disk drives (HDDs)/solid state hard disks (SSDs) in computers or storage arrays so that they function as logical components.
Controllers provide an abstract level between the operating system and physical disk drives. RAID controllers group applications and operating systems by logical units, thereby clarifying data protection schemes. Controllers have the ability to obtain multiple backups of data on multiple physical devices, thereby enabling them to improve performance and protect data when the system crashes.Highlight.
In hard disk-based RAIDs, physical controllers are used to manage RAID arrays. Controllers are in the form of PCI or PCIe cards, which are specific driver formats (such as SATA or SCSI)Specially designed. RAID controllers can also be just software that uses the hardware resources of the host system. Software-based RAIDs often provide functionality similar to hardware-based RAIDs, but usually do not perform as well as hardware-based RAIDs.
Hope to help.

What is a RAID controller?

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