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| faq:xpc_slim:xh270 [2019/07/15 14:30] – [Raid] TS | faq:xpc_slim:xh270 [2019/07/15 14:33] – [The XH270 supports the following raid levels:] TS | ||
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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 | + | ==== The XH270 supports the following |
| - | ^Raid Level^ | + | ^Level^Explanation^Pros^Cons^Number of possible hard disks in XH270^Volume capacity^ |
| - | ^ RAID 0 ^ | + | ^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| |
| - | | |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 1|Writes identical data to both hard disks at the same time.|Provides data redundancy|Only 50% volume capacity|2 per RAID|Smallest hard disk size| |
| - | ^ RAID 1 ^^^^^ | + | ^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)| |
| - | | |Writes identical data to both hard disks at the same time.|Provides data redundancy|Only 50% volume capacity | + | ^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 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 | | + | |
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| ==== How to set up a RAID configuration on XH270? ==== | ==== How to set up a RAID configuration on XH270? ==== | ||