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vm:proxmox:ceph:performance [2024/05/17 19:33] – niziakvm:proxmox:ceph:performance [2024/05/19 10:39] (current) – niziak
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     * primary PG - original/first PG - others are replicas. Primary PG is used for read.     * primary PG - original/first PG - others are replicas. Primary PG is used for read.
   * use relatively more PG than for big cluster - better balance, but handling PGs consumes resources (RAM)   * use relatively more PG than for big cluster - better balance, but handling PGs consumes resources (RAM)
 +    * i.e. for 7 OSD x 2TB PG autoscaler recommends 256 PG. After changing to 384 IOops drastivally increases and latency drops.
 +      Setting to 512 PG wasn't possible because limit of 250PG/OSD.
  
 === balancer === === balancer ===