Is scsi disk device a solid state drive?

The operating environment of this tutorial: windows7 system, Dell G3 computer.

scsi disk device is not a solid state drive, but a mechanical hard drive.

scsi disk device refers to a SCSI hard disk, which is a hard disk using a SCSI interface.

SCSI is the abbreviation of Small Computer System Interface. It uses a 50-pin interface and looks similar to an ordinary hard disk interface. SCSI hard disks have many advantages over ordinary IDE hard disks: the interface speed is fast, and because it is mainly used in servers, the performance of the hard disk itself is also relatively high, the hard disk speed is fast, the cache capacity is large, the CPU occupancy is low, and the scalability is far better than IDE hard drive and supports hot swapping.

Comparison between scsi hard disk and solid state hard drive

1. The appearance of SCSI interface hard disk (mechanical hard disk) is somewhat similar to that of ordinary hard disk interface. The interface speed is fast and it is mainly used in servers. The performance of the hard disk itself is also relatively high. The hard disk speed is fast, the cache capacity is large, the CPU usage is low, and it supports hot swapping.

2. Solid-state hard drive (SSD hard drive) is a hard drive made of solid-state electronic storage chip array. The interface generally adopts SATA-2 interface and SATA-3 interface. The reading and writing speed is faster than that of mechanical hard disk, but at present The capacity of the solid-state drive in the market is limited (128G)

3. The biggest advantage of the SSD solid-state drive is that it can be moved, and the data protection is not controlled by the power supply, and can be adapted to various environments. , but its service life is not long and it is suitable for individual users.

4. If you are using it for a server, it is better to choose a hard disk with a SCSI interface.

Extended information

1. Hard drives include solid-state drives (SSD drives, new hard drives), mechanical hard drives (HDD traditional hard drives), and hybrid hard drives (HHD based on traditional mechanical drives). A new hard drive was born from the hard drive). SSD uses flash memory particles for storage, HDD uses magnetic discs for storage, and hybrid hard disk (HHD: Hybrid Hard Disk) is a hard disk that integrates magnetic hard disk and flash memory. The vast majority of hard drives are fixed hard drives, permanently sealed and secured within the hard drive.

2. Magnetic head reset energy-saving technology: Save energy by resetting the magnetic head when idle.

3. Multi-head technology: Speed ​​up the hard disk by adding multiple heads on the same disk to read or write at the same time, or use heads to read or write on multiple disks at the same time to speed up the disk. Mostly used in servers and database centers.

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