Hi,

My mission is to make a ceph cluster production ready.
We already have a mock-up of 6 nodes deployed via cephadm to test ceph's 
features
We want to install a ceph cluster to get off our dependencies to SAN and to 
store around 400 TB of data. We'll use mostly block storage for VMs/k8 and a 
bit of CephFS and Object storage

Are those specs good for our purpose ?

- 3 MGR/MON/RGW 128 GB RAM 32 cores (is it recommended to put RGW daemon in the 
same node as MGR/MON ?)
- 2 MDS 16 GB RAM 8 cores
- * OSD 8 GB RAM 8 cores (with high IOPS per core)

We are pretty new to ceph so any advice would be appreciate !

Thanks !
Vivien

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