raid
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raid [2009/08/27 09:22] – 172.26.0.166 | raid [2009/09/29 14:54] – 172.26.0.166 | ||
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- | === HPC RAID array === | + | ===== RAID ===== |
- | The storage | + | We have two RAIDs on the HPC |
+ | * Linux kernel software | ||
+ | * 3mware hardware RAID | ||
+ | |||
+ | | 0 | 1 | 2 | 3 | | ||
+ | | 8 | 9 | 10 | 11 | | ||
+ | | 4 | 5 | 6 | 7 | | ||
+ | | 0 | 1 | 2 | 3 | | ||
+ | |||
+ | ===== Software RAID ===== | ||
It is currently reporting a degraded array (27 Aug 2009): | It is currently reporting a degraded array (27 Aug 2009): | ||
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How do you know which physical disk is broken to replace it? | How do you know which physical disk is broken to replace it? | ||
+ | |||
+ | ===== Hardware RAID ===== | ||
+ | |||
+ | There is a utility, tw_cli, which can be used to control the hardware raid. The hardware RAID has three arrays, all RAID 5. Each " | ||
+ | |||
+ | Study the output of '' | ||
+ | * Which controller is active? (c0, c1, etc) | ||
+ | * Which unit is degraded? (u0, u1, u2, etc) | ||
+ | * Which | ||
+ | |||
+ | Remove the faulty port: | ||
+ | < | ||
+ | Insert a new drive and rescan: | ||
+ | < | ||
+ | Rebuild the degraded array: | ||
+ | < | ||
+ | Check the status of the rebuild by monitoring ''/ |
raid.txt · Last modified: 2010/09/19 23:58 by aorth