RAID Cards and storage arrays

RAID Cards and storage arrays

The vast majority of desktop PCs use the Sast interface and the hard drive to connect directly to the storage space, and how many interfaces mean how many hard drives can be connected to each other. Of course, there's a person who uses a RAID card for security reasons, theRAID card is plugged into the PCI expansion slot, and the SATA interface of the hard drive is docked to the Sast interface above the raid .

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The rack server uses the interface backplane mode, because the disk interface requires too much at least six pieces, the general RAID card appears two or three or 6 hard disk interface can also

It is obviously inappropriate for the rack server to support hot-swappable methods and cabling rules. The rack server is backed by a SAS backplane that supports SATA drives and SAS disks, and the SAS backplane is connected to the RAID controller.

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Normally a front-mounted hard drive is connected to a local raid card. If you want to extend the storage of an entire column, you need to insert a RAID card in the PCI slot to store the entire column. The rack-mount PCI slots and fixed expansion card locations and heights are not suitable for RAID cards ( desktop version ), so you will see some 32-bit PCI forward adapter cards that can be connected and secured to the rack via this card. The SAS backplane that stores the entire column is then connected via the external interface.

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RAID Cards and storage arrays