Drallas/Create Erasure Coded CephFS Pools.md

## Create Erasure Coded CephFS Pools.md

      
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              Create Erasure Coded CephFS Pools.md
            
          
    Create Erasure Coded CephFS Pools


Part of collection: Hyper-converged Homelab with Proxmox

How to create a Erasure Coded Pool in Ceph and use 'directory pinning' to connect it to the CephFS filesystem.
To use a Erasure Coded Pool with CephFS, a directory inside the CephFS filesystem needs to be connected to a Erasure Coded Pool, this is called 'directory pinning'.

Create a Directory

The directory needs to be created inside the CephFS filesystem folder on one of the Proxmox Hosts.
mkdir /mnt/pve/cephfs/test-pool

This only has to be done only on one of the Proxmox Ceph cluster nodes!


Create a Pool

Now create an Erasure Coded Ceph Pool, this example uses the Ceph Dashboard; but it can also be done via the command-line.
Open the Ceph Dashboard, if it's installed, it can be found at:
http://192.168.1.11:8443
Create a Erasure code profile


Create the pool
Add an EC Profile

Fill in the details and click + next to 'Erasure code profile'.

Create EC Profile 1
Create EC Profile

Select the desired settings; this example stores the Data on large but slower SSD drives, avoiding storing it on the faster NVMe in the cluster.

Create EC Profile 2

Directory Pinning

Add the folder to the CepFS File system using 'directory pinning'.
Open the terminal on a Host:
Add the Data Pool to CephFS
ceph fs add_data_pool cephfs test-pool
Connect the Data Pool to the directory.
setfattr -n ceph.dir.layout -v pool=test-pool /mnt/pve/cephfs/test-pool/

Now the folder is ready to be used with Proxmox VM's via Virtio-fs or other methods.