Ceph - preference node for writes?

gasmanc

New Member
Jul 29, 2019
11
0
1
42
Right now I have a three node cluster. Two of the nodes have ECC memory and the other one is a NUC.
Is there any way to preference writes such that all incoming data hits one of the 2 ECC nodes before being replicated to the NUC node?
I’ve used primary-affinity on the OSDs attached to the NUC, but is this enough?
 
Right now I have a three node cluster. Two of the nodes have ECC memory and the other one is a NUC.
Is there any way to preference writes such that all incoming data hits one of the 2 ECC nodes before being replicated to the NUC node?
I’ve used primary-affinity on the OSDs attached to the NUC, but is this enough?

Primary-affinity is really the only option you have, Id double check your config as it should work as you require:

https://ceph.com/geen-categorie/ceph-get-the-best-of-your-ssd-with-primary-affinity/
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!