Compression or deduplication in Ceph

[Thaillie]

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?

 

[spirit]

if you format yours osd with bluestore (currently experimental),you can enable compression.

no dedup yet

 

[Thaillie]

In addition to switching to Bluestore I found that Ceph supports Cache Tiering.

Would it be possible to add a "cold-storage" pool to the existing "hot-storage" pool (current pool are SSD's)?
If so, witch of the 2 pools do I have to create the Proxmox RBD storage on?

The "cold-storage" pool would be configured as an Erasure coded pool to save space (save ~40%).

 

[chrone]

In addition to switching to Bluestore I found that Ceph supports Cache Tiering.

Would it be possible to add a "cold-storage" pool to the existing "hot-storage" pool (current pool are SSD's)?
If so, witch of the 2 pools do I have to create the Proxmox RBD storage on?

The "cold-storage" pool would be configured as an Erasure coded pool to save space (save ~40%).

How to do you deploy Ceph Bluestore in pveceph?