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Found out something about megacli and checked settings for cache and |
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stuff following |
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http://highperfpostgres.com/guides/lsi-megaraid-setup-for-postgresql/ |
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Did I set a wrong Strip Size for the third array? |
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good night, late here ... |
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Stefan |
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# megacli -LDInfo -Lall -aALL |
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Adapter 0 -- Virtual Drive Information: |
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Virtual Drive: 0 (Target Id: 0) |
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Name :root |
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RAID Level : Primary-6, Secondary-3, RAID Level Qualifier-3 |
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Size : 500.0 GB |
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Sector Size : 512 |
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Is VD emulated : No |
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Parity Size : 250.0 GB |
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State : Optimal |
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Strip Size : 256 KB |
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Number Of Drives : 6 |
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Span Depth : 1 |
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Default Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if |
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Bad BBU |
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Current Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if |
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Bad BBU |
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Default Access Policy: Read/Write |
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Current Access Policy: Read/Write |
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Disk Cache Policy : Disabled |
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Encryption Type : None |
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Bad Blocks Exist: No |
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Is VD Cached: No |
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|
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Virtual Drive: 1 (Target Id: 1) |
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Name :swap |
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RAID Level : Primary-6, Secondary-3, RAID Level Qualifier-3 |
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Size : 8.0 GB |
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Sector Size : 512 |
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Is VD emulated : No |
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Parity Size : 4.0 GB |
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State : Optimal |
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Strip Size : 64 KB |
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Number Of Drives : 6 |
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Span Depth : 1 |
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Default Cache Policy: WriteBack, ReadAheadNone, Cached, No Write Cache |
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if Bad BBU |
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Current Cache Policy: WriteBack, ReadAheadNone, Cached, No Write Cache |
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if Bad BBU |
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Default Access Policy: Read/Write |
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Current Access Policy: Read/Write |
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Disk Cache Policy : Disabled |
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Encryption Type : None |
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Bad Blocks Exist: No |
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Is VD Cached: No |
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|
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Virtual Drive: 2 (Target Id: 2) |
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Name :lvm |
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RAID Level : Primary-6, Secondary-3, RAID Level Qualifier-3 |
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Size : 1.321 TB |
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Sector Size : 512 |
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Is VD emulated : No |
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Parity Size : 676.5 GB |
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State : Optimal |
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Strip Size : 64 KB |
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Number Of Drives : 6 |
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Span Depth : 1 |
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Default Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if |
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Bad BBU |
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Current Cache Policy: WriteBack, ReadAdaptive, Direct, No Write Cache if |
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Bad BBU |
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Default Access Policy: Read/Write |
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Current Access Policy: Read/Write |
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Disk Cache Policy : Disabled |
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Encryption Type : None |
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Bad Blocks Exist: No |
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Is VD Cached: No |
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