QTech 1U, Руководство по установке оборудования

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Hardware installation manual
Qtech Platform 2U Server Product Technical Manual 83
www.qtech.ru
nor fault tolerance. If a disk (physical) is damaged, all data will be lost, and the degree of
danger is equivalent to that of JBOD.
2.RAID1
The main function of RAID1 is "Data Mirroring", that is, data mirroring. The principle is
that while storing data on the main hard disk, the same data is also written on the mirrored
hard disk. When the main hard disk (physical) is damaged, the mirror hard disk will replace
the main hard disk. Because there are mirrored hard disks for data backup, the data security
of RAID 1 is the best among all RAID levels. However, no matter how many disks are used for
RAID 1, only the capacity of one disk is counted, which is the lowest disk utilization level
among all RAIDs.
3.RAID 5
RAID5 is a storage solution that balances storage performance, data security and storage
costs. It uses Disk Striping (hard disk partition) technology. RAID 5 requires at least three hard