cache tiering

  1. ceph can't disable tiering cache

    I switch cache-mode from writeback to proxy # ceph osd tier cache-mode rbd_nvme proxy But after cache-flush-evict-all (with errors) cache filled again # rados -p rbd_nvme cache-flush-evict-all | grep failed failed to flush /rbd_header.5a06de6b8b4567: (16) Device or resource busy failed to...
  2. Compression or deduplication in Ceph

    I am currently running a proxmox 5.0 beta server with ceph (luminous) storage. I am trying to reduce the size of my ceph pools as I am running low on space. Does ceph have some kind of option to use compression or deduplication to reduce the size of the pool on disk?
  3. Ceph cache tier and disk resizing

    Hello, i'm currently running a ceph cluster (Hammer), last weekend I implemented a cache tier (writeback mode) of SSDs for better performance. Everything seems fine except for disk resizing. I have a Windows VM with a raw RBD disk, i powered off the VM, resized the disk, verified that both ceph...
  4. 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...

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 your own in 60 seconds.

Buy now!