Ceph - 恢复/再平衡

It is intentional, that CEPH does not fill up all available bandwith during recovery/rebalancing. If you want to speed it up:
CEPH 在恢复/重新平衡期间不填充所有可用带宽是有意为之的。如果您想加快速度：

You can also set these values if you want a quick recovery for your cluster, helping OSDs to perform recovery faster.
如果要快速恢复集群，也可以设置这些值，以帮助 OSD 更快地执行恢复。

• osd max backfills: This is the maximum number of backfill operations allowed to/from OSD. The higher the number, the quicker the recovery, which might impact overall cluster performance until recovery finishes.
  osd max backfills：这是允许向 OSD 执行/从 OSD 执行的最大回填作数。数字越大，恢复速度越快，这可能会影响整体集群性能，直到恢复完成。
• osd recovery max active: This is the maximum number of active recover requests. Higher the number, quicker the recovery, which might impact the overall cluster performance until recovery finishes.
  osd recovery max active：这是活动恢复请求的最大数量。数字越大，恢复速度越快，这可能会影响整体集群性能，直到恢复完成。
• osd recovery op priority: This is the priority set for recovery operation. Lower the number, higher the recovery priority. Higher recovery priority might cause performance degradation until recovery completes.
  osd recovery op priority：这是为恢复作设置的优先级。数字越小，恢复优先级越高。较高的恢复优先级可能会导致性能下降，直到恢复完成。

 

 

https://forum.proxmox.com/threads/ceph-slow-recovery-rebalance-on-fast-sas-ssd.80235/