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  1. Flashcache vs Cache Tiering in Ceph

    Thank you very much for your detailed answer, it was very helpful. May I pick your brain once more? I am not sure about the impact of the various types of caches. In my case, I have, in each node, Proxmox + OSD Journaling (11G) in the SSD and the OSD in a 2T disk. I can easily get small HDs...
  2. Flashcache vs Cache Tiering in Ceph

    Hi, I assembled a small Proxmox 4.1 cluster (3 Proxmox nodes + 1 NFS server for backup) using 1Gbit ethernet. All 3 nodes run OSDs (1x2T disks) with 10G SSD partitions for Journaling. My VMs use ceph rbd for storage. Now, I want to use SSDs for caching (either using free space on the...


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