Describe the issue:

Given command in section: 7.4. Preparing Ceph OSDs using ceph-volume is incorrect
# ceph-volume lvm prepare --bluestore --block.db --block.wal --data test-vg/test-lv
usage: ceph-volume lvm prepare [-h] --data DATA [--data-size DATA_SIZE]
                               [--data-slots DATA_SLOTS] [--osd-id OSD_ID]
                               [--osd-fsid OSD_FSID]
                               [--cluster-fsid CLUSTER_FSID]
                               [--crush-device-class CRUSH_DEVICE_CLASS]
                               [--dmcrypt] [--no-systemd] [--bluestore]
                               [--block.db BLOCK_DB]
                               [--block.db-size BLOCK_DB_SIZE]
                               [--block.db-slots BLOCK_DB_SLOTS]
                               [--block.wal BLOCK_WAL]
                               [--block.wal-size BLOCK_WAL_SIZE]
                               [--block.wal-slots BLOCK_WAL_SLOTS]
                               [--filestore] [--journal JOURNAL]
                               [--journal-size JOURNAL_SIZE]
                               [--journal-slots JOURNAL_SLOTS]
ceph-volume lvm prepare: error: argument --block.db: expected one argument


Describe the task you were trying to accomplish:


Suggestions for improvement:

Document URL: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/5/html-single/administration_guide/index#preparing-ceph-osds-using-ceph-volume_admin

Chapter/Section Number and Title: 7.4. Preparing Ceph OSDs using ceph-volume

Product Version:
RHCS 5

Environment Details:

Any other versions of this document that also needs this update:

Additional information: