RAID

RAID, short for Redundant Arrays of Independent Drives, refers to combining multiple disks through a RAID controller to enhance disk I/O capabilities or provide redundancy. XXXCloud UPHost offers five different RAID options: RAID 1, 0, 10, 5, and NoRaid, which can be selected when creating or reinstalling a UPHost.

RAID 1

RAID 1 ensures data security through data mirroring. Its read/write performance is equivalent to that of a single disk, with data mirrored and backed up. The storage space utilization rate is 50%, making it suitable for scenarios with high data security requirements.

RAID 0

Risk Warning: RAID 0 has no redundancy or data repair capabilities and provides no data security guarantee. If a single disk fails, the entire RAID group becomes unavailable.

RAID 0 uses data striping for the highest read/write performance, with 100% disk utilization. However, it has no redundancy and should not be used in scenarios with high data security requirements.

RAID 5

RAID 5 provides parity redundancy for data and uses data striping, offering high read/write performance with storage space utilization exceeding 50%. However, its security is slightly lower than RAID 10 and RAID 1. It is suitable for scenarios with more reads and fewer writes, serving as the optimal compromise among performance, data redundancy, and cost.

RAID 10

Combining the characteristics of RAID 0’s data striping and RAID 1’s mirroring redundancy, RAID 10 not only delivers high read/write speeds but also ensures data mirror protection. With a storage space utilization rate of 50%, it is widely used in practical applications.

NoRAID

Risk Warning: NoRAID has no redundancy or data repair capabilities and provides no data security guarantee.

No RAID is created. In the system, N disks with exclusive IO can be seen. When a single disk fails, other disks remain usable.

Some server models do not have a RAID controller, so only NoRAID can be selected.