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RAID 1 and RAID 1+0 (RAID 10)
RAID 1 and RAID 1+0 (RAID 10)
In RAID 1 and RAID 1+0 (RAID 10) configurations, data is duplicated to a second drive. The usable capacity is C x (n / 2) where C is the
drive capacity with n drives in the array. A minimum of two drives is required.
When the array contains only two physical drives, the fault-tolerance method is known as RAID 1.
The maximum number of drives supported for RAID 1 is 32.
When the array has more than two physical drives, drives are mirrored in pairs, and the fault-tolerance method is known as RAID 1+0 or
RAID 10. If a physical drive fails, the remaining drive in the mirrored pair can still provide all the necessary data. Several drives in the
array can fail without incurring data loss, as long as no two failed drives belong to the same mirrored pair. The total drive count must
increment by 2 drives. A minimum of four drives is required.
The maximum number of drives supported for RAID 10 is 32.
This method has the following benefits:
It is useful when high performance and data protection are more important than usable capacity.
This method has the highest write performance of any fault-tolerant configuration.
RAID 1 and RAID 1+0 (RAID 10)
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Содержание MR Gen10 Plus
Страница 1: ...HPE MR Gen10 Plus Controller User Guide Part Number 30 9E6EB4E3 002 Published April 2022 Edition 2 ...
Страница 10: ...Features Features 10 ...
Страница 19: ...RAID technologies RAID technologies 19 ...
Страница 26: ...Striping Striping 26 ...
Страница 28: ...Mirroring Mirroring 28 ...
Страница 32: ...Parity Parity 32 ...
Страница 45: ...Spare drives Spare drives 45 ...
Страница 50: ...Transformation Transformation 50 ...
Страница 51: ...Array transformations Array transformations 51 ...
Страница 54: ...Logical drive transformations Logical drive transformations 54 ...
Страница 58: ...Drive technology Drive technology 58 ...
Страница 66: ...Security Security 66 ...
Страница 68: ...Simple A Simple erase writes a pattern to the logical drive in a single pass Simple 68 ...
Страница 70: ...Thorough A thorough drive erase operation repeats the Normal drive erase operation three times Thorough 70 ...
Страница 73: ...Reliability Reliability 73 ...
Страница 76: ...Performance Performance 76 ...
Страница 80: ...Cache Cache 80 ...
Страница 97: ...Cable part numbers For more information on cables see the server QuickSpecs Cable part numbers 97 ...
Страница 98: ...Configuration Configuration 98 ...
Страница 106: ...Configuration management Configuration management 106 ...
Страница 117: ...Controller management Controller management 117 ...
Страница 119: ...Advanced controller management Advanced controller management 119 ...
Страница 137: ...Logical drive management Logical drive management 137 ...
Страница 143: ...Drive management Drive management 143 ...
Страница 155: ...Maintenance Maintenance 155 ...
Страница 156: ...System maintenance tools System maintenance tools 156 ...
Страница 160: ...Models Models 160 ...
Страница 172: ...Support and other resources Support and other resources 172 ...