I found a warning in Red Hat documentation regarding OSD and RBD: Ceph Block Devices must be deployed on separate nodes from the Ceph Monitor and OSD nodes. Running kernel clients and kernel server daemons on the same node can lead to kernel deadlocks. [1] It was hard to tell from the documentation if this is still true as some Rook documentation [2] mentioned a solution. Is having an RBD on the same node as the OSD's still a no-no or is it OK with the conditions listed in the Rook docs (i.e. patched kernel + no XFS)? TIA! --chuck [1] https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/2/html/installation_guide_for_ubuntu/client_installation#ceph_block_device_installation [2] https://rook.io/docs/rook/v1.6/ceph-common-issues.html#a-worker-node-using-rbd-devices-hangs-up _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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