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Creating 4+2 Erasure Code Pool

Create the pool and EC Profile​

  1. Create pool from ceph dashboard Screenshot

  2. Create new Erasure code profile

Screenshot

  1. ceph dashboard will say placement groups incomplete

Edit the Crushmap​

  1. sudo ceph osd getcrushmap -o compiled
  2. sudo crushtool -d compiled -o decompiled
  3. sudo nano decompiled
  4. Change these two lines

Screenshot

  1. sudo crushtool -c decompiled -o new1
  2. sudo ceph osd setcrushmap -i new1

Check ceph dashboard to make sure the pool is healthy and has the correct size.