Hello everyone,
Today I have a cluster with 4 hosts and I created a pool that uses a erasure code profile bellow:
######
directory=/usr/lib/ceph/erasure-code
k=3
m=1
plugin=jerasure
ruleset-failure-domain=host
technique=reed_sol_van
######
This cluster is used only for RGW and I’m planning to add a new host on that cluster. So, with a new node I’d like to change this pool to use another profile where with k=3, m=2 to increase the protection of the data.
Keep in mind the need of create new pool with a different profile and move all objects from the previous pool to the new, because a previous created pool cannot be modified. I’d like to know if someone already done that and if someone has some recommendation for better way to make this done?
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