Re: Ceph luminous - troubleshooting performance issues overall DSK 100%, busy 1%

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Is this just from one server or from all servers? Just wondering why VD
0 is using WriteThrough compared to the others. If that's the setup for
the OSD's you already have a cache setup problem.


On 10.04.2018 13:44, Mohamad Gebai wrote:
> megacli -LDGetProp -cache -Lall -a0
>
> Adapter 0-VD 0(target id: 0): Cache Policy:WriteThrough,
> ReadAheadNone, Direct, Write Cache OK if bad BBU
> Adapter 0-VD 1(target id: 1): Cache Policy:WriteBack, ReadAdaptive,
> Cached, No Write Cache if bad BBU
> Adapter 0-VD 2(target id: 2): Cache Policy:WriteBack, ReadAdaptive,
> Cached, No Write Cache if bad BBU
> Adapter 0-VD 3(target id: 3): Cache Policy:WriteBack, ReadAdaptive,
> Cached, No Write Cache if bad BBU

-- 
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)


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