Re: How to set the DB and WAL partition size in Ceph-Ansible?

[Konstantin Shalygin <k0ste@xxxxxxxx>]

Hi everyone,

If I choose to use the "non-collocated" scenario and Bluestore in
Ceph-Ansible, how could I define the size of the partitions on a
dedicated device used for the DB and WAL by multiple OSDs?

Like this in global_vars:

ceph_conf_overrides:
  global:
    bluestore_block_db_size: "{{
      hostvars[inventory_hostname]['ceph_bluestore_block_db_size'] |
      default('32212254720') }}"
    bluestore_block_wal_size: "{{
      hostvars[inventory_hostname]['ceph_bluestore_block_wal_size'] |
      default('1073741824') }}"

Now you can define wal/db sizes for each host via 'ceph_bluestore_block_db_size' and 'ceph_bluestore_block_wal_size' or use defaults (1Gb for wal, 28Gb for db).

k

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