Hi Yoann,
So I would not be putting 1 x 6.4TB device in but multiple smaller devices in
each node.
What CPU are you thinking of using?
How many CPU's? If you have 1 PCIe card then it will only be connected to 1 CPU
so will you be able to use all of the performance of multiple CPU's.
What network are you thinking of? Wouldn't be doing less than 100G or multiple
25G connections.
Where is you CephFS metadata being stored? What are you doing about CephFS
metadata servers?
What about some faster storage for the WAL?
What is your IO Profile? Read/Write split?
It may be the case that EC is not the best fit for the workload you are trying
to do.
Darren
On 15/11/2019, 15:26, "Yoann Moulin" <yoann.mou...@epfl.ch> wrote:
Hello,
I'm going to deploy a new cluster soon based on 6.4TB NVME PCI-E Cards, I
will have only 1 NVME card per node and 38 nodes.
The use case is to offer cephfs volumes for a k8s platform, I plan to use
an EC-POOL 8+3 for the cephfs_data pool.
Do you have recommendations for the setup or mistakes to avoid? I use
ceph-ansible to deploy all myclusters.
Best regards,
--
Yoann Moulin
EPFL IC-IT
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