1COSD(8) System Manager's Manual COSD(8)
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6 cosd - ceph object storage daemon
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9 cosd -i osdnum [ --osd-data datapath ] [ --osd-journal journal ] [
10 --mkfs ]
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13 cosd is the object storage daemon for the Ceph distributed file system.
14 It is responsible for storing objects on a local file system and pro‐
15 viding access to them over the network.
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17 The datapath argument should be a directory on a btrfs file system
18 where the object data resides. The journal is optional, and is only
19 useful performance-wise when it resides on a different disk than data‐
20 path with low latency (ideally, an NVRAM device).
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23 -D Debug mode: do not daemonize after startup (run in foreground)
24 and send log output to stdout.
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26 -f do not daemonize after startup (run in foreground), but log to
27 the usual location. Useful when run via crun(8).
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29 --osd-data osddata
30 Use object store at osddata.
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32 --osd-journal journal
33 Journal updates to journal.
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35 --mkfs Create an empty object repository. Normally invoked by
36 mkcephfs(8).
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38 -c ceph.conf, --conf=ceph.conf
39 Use ceph.conf configuration file instead of the default
40 /etc/ceph/ceph.conf for runtime configuration options.
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42 -m monaddress[:port]
43 Connect to specified monitor (instead of looking through
44 ceph.conf).
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47 cosd is part of the Ceph distributed file system. Please refer to the
48 Ceph wiki at http://ceph.newdream.net/wiki for more information.
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51 ceph(8), cmds(8), cmon(8)
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55 COSD(8)