Re: How to size nvme or optane for index pool?

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Yeah, I see the same, 6 servers have nvme drives and today in the iops side were all maxed out, but I don’t understand why, the user made head operation like 60000 sometimes in a minute, the cluster iops was like 60-70k and how can this max out 6 nvme drives which should be able to server each more then this iops :(

Istvan Szabo
Senior Infrastructure Engineer
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Agoda Services Co., Ltd.
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On 2021. Jul 15., at 13:03, Anthony D'Atri <anthony.datri@xxxxxxxxx> wrote:

`ceph df `?   Back when I was using SATA SSDs I saw limiting more on iops than space.

I’ve seen an estimate of 1% of the size of the buckets pool but this is very much a function of your object size distribution.  More but smaller drives would decrease your failure domain and speed up recovery.

On Jul 14, 2021, at 9:52 PM, Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx> wrote:

Hi,

How can I know which size of the nvme drive needed for my index pool? At the moment I'm using 6x1.92TB NVME (overkill) but I have no idea how is it used.

Thanks

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