What are the advantages of the hard disk of the server

The server hard disk is the hard disk used on the server. If the server is the core of the network data, then the server hard disk is the core data warehouse, where all the software and user data are stored.

1. High speed

The speed of the hard disk used by the server is fast, which can reach 7200 or 10000 revolutions per minute, or even higher; it is also equipped with a larger writeback cache (usually 2MB or 4MB); the average access time is relatively short; the external transfer rate and internal transfer rate are higher, using Ultra Wide SCSI, Ultra2 Wide SCSI, Ultra160 SCSI, Ultra320 SCSI and other standards of SCSI hard disk, the data transfer rate per second can reach 40MB, 80MB, 160MB, 320MB respectively.

2. High reliability

Because the server hard disk is running almost 24 hours a day, bearing a huge workload. It can be said that if something goes wrong with the hard disk, the consequences will be unimaginable. Therefore, the current hard drives are using S.M.A.R.T technology (self-monitoring, analysis and reporting technology), while hard disk manufacturers have adopted their own unique advanced technology to ensure data security.

3. Use SCSI interface more often.

Most servers use SCSI hard drives with large data throughput and low CPU share. SCSI hard disk can only be used through SCSI interface. Some server motherboards integrate SCSI interface, and some have special SCSI interface card. One SCSI interface card can connect 7 SCSI devices, which can not be compared with IDE interface.

4. Hot-swappable support

Hot plug (Hot Swap) is a hard disk installation mode supported by some servers, which can unplug or insert a hard disk without server downtime, and the operating system automatically recognizes the changes to the hard disk. This technology is necessary for servers that run 24 hours a day.