Re: Performance Problems

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Quoting Robert Sander (r.sander@xxxxxxxxxxxxxxxxxxx):
> On 07.12.18 18:33, Scharfenberg, Buddy wrote:
> 
> > We have 3 nodes set up, 1 with several large drives, 1 with a handful of
> > small ssds, and 1 with several nvme drives.
> 
> This is a very unusual setup. Do you really have all your HDDs in one
> node, the SSDs in another and NVMe in the third?
> 
> How do you guarantee redundancy?

Disk type != redundancy.
> 
> You should evenly distribute your storage devices across your nodes,
> this may already be a performance boost as it distributes the requests.

If performance is indeed important, it makes sense to do as what Robert
suggests. If you want to reduce the chance of having your drives in the
three different hosts die at the same time, it can make sense. Assuming
you have 3 replicas and host as failure domain.

Gr. Stefan


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