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| faq:xpc_slim:xh270 [2019/07/15 14:41] – [How to set up a RAID configuration on XH270?] TS | faq:xpc_slim:xh270 [2019/07/15 14:43] (current) – TS | ||
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| ====== XH270 ====== | ====== XH270 ====== | ||
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| ===== RAID ===== | ===== RAID ===== | ||
| Operating a RAID system requires at least two or more storage drives. These work together and form a group of drives. This is also more efficient than one single drive. | Operating a RAID system requires at least two or more storage drives. These work together and form a group of drives. This is also more efficient than one single drive. | ||
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| * Structure of large logical drives | * Structure of large logical drives | ||
| * Cost reduction through use of several small, less expensive drives | * Cost reduction through use of several small, less expensive drives | ||
| - | ==== The XH270 supports the following RAID levels: ==== | + | |
| + | ===== The XH270 supports the following RAID levels | ||
| ^Level^Explanation^Pros^Cons^Number of possible hard disks in XH270^Volume capacity^ | ^Level^Explanation^Pros^Cons^Number of possible hard disks in XH270^Volume capacity^ | ||
| ^RAID 0|Striping means a mode of operation where data is shared across multiple disks to improve performance.|Increased transfer rate|No protection from loss of data|2, 3, 4|Sum of all disk sizes| | ^RAID 0|Striping means a mode of operation where data is shared across multiple disks to improve performance.|Increased transfer rate|No protection from loss of data|2, 3, 4|Sum of all disk sizes| | ||
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| ^RAID 5|Implemented block-level striping with parity data shared across all included disks makes data redundancy more efficient than RAID 1.|More efficient data redundancy than with RAID 1|-|3, 4|(X*- 1) x (smallest hard drive size)| | ^RAID 5|Implemented block-level striping with parity data shared across all included disks makes data redundancy more efficient than RAID 1.|More efficient data redundancy than with RAID 1|-|3, 4|(X*- 1) x (smallest hard drive size)| | ||
| ^RAID 10|The combination of RAID 0 and RAID 1 doubles the performance as compared to RAID 1.|Doubles the performance in comparison to RAID 1|Low total capacity|4|(X* / 2) x (smallest hard drive size)| | ^RAID 10|The combination of RAID 0 and RAID 1 doubles the performance as compared to RAID 1.|Doubles the performance in comparison to RAID 1|Low total capacity|4|(X* / 2) x (smallest hard drive size)| | ||
| - | ==== How to set up a RAID configuration on XH270? ==== | ||
| + | ===== How to set up a RAID configuration on XH270? ===== | ||
| **The following requirements must be met before setup.** | **The following requirements must be met before setup.** | ||
| * The XH270 must be ready for operation with at least two hard disks installed and connected to the SATA ports. | * The XH270 must be ready for operation with at least two hard disks installed and connected to the SATA ports. | ||