Hello, If fragmentation scores reflect the used space size of the cluster (so 80%~ regarding previous values), then maybe its time to add more capacity. Fragmentation can be inspected with the ceph-bluestore-tool. On Sat, Aug 16, 2025, 09:39 Florent Carli <fcarli@xxxxxxxxx> wrote: > Hello, > > I’m running Ceph 19.2.3 with cephadm on a 3-node cluster, and I > recently started seeing the following warning related to free > fragmentation: > > HEALTH_WARN 3 OSD(s) > [WRN] BLUESTORE_FREE_FRAGMENTATION: 3 OSD(s) > osd.0 0.802713 > osd.1 0.803276 > osd.2 0.803870 > > I haven’t been able to find clear guidance on how to address this issue. > Are there any recommended approaches or best practices for reducing > BlueStore free space fragmentation? > > Thanks in advance for your help! > > Florent. > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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