Peter Lieven <pl@xxxxxxx> writes: > Whatever SSD you choose, look if they support power-loss-protection and make sure you disable the write cache. I have read this statement multiple times now, but I am still puzzled by the disabling write cache statement. What is wrong with having a (BBU based) write cache in front of the SSDs / how does it decrease the perfomance? As far as I can tell, this is just another buffer/cache that is added in the write chain and thus should improve speed for small writes. For write bursts / longer writes the cache will not play a role anymore. What am I missing? -- Sustainable and modern Infrastructures by ungleich.ch _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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