1ocfs2_hb_ctl(8)               OCFS2 Manual Pages               ocfs2_hb_ctl(8)
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NAME

6       ocfs2_hb_ctl - Starts and stops the OCFS2 heartbeat on a given device.
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SYNOPSIS

9       ocfs2_hb_ctl -S -d device service
10       ocfs2_hb_ctl -S -u uuid service
11       ocfs2_hb_ctl -K -d device service
12       ocfs2_hb_ctl -K -u uuid service
13       ocfs2_hb_ctl -I -d device
14       ocfs2_hb_ctl -I -u uuid
15       ocfs2_hb_ctl -P -d device [-n io_priority]
16       ocfs2_hb_ctl -P -u uuid [-n io_priority]
17       ocfs2_hb_ctl -h
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DESCRIPTION

21       ocfs2_hb_ctl  starts  and stops the heartbeat on a OCFS2 device.  Users
22       are strongly urged not to use this tool directly. It  is  automatically
23       invoked by mount.ocfs2 and other tools that require heartbeat notifica‐
24       tions.
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26       The tools accepts devices to be specified by its name or its uuid. Ser‐
27       vice denotes the application that is requesting the heartbeat notifica‐
28       tion.
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OPTIONS

32       -S     Starts the heartbeat.
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35       -K     Stops the heartbeat.
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38       -I     Prints the heartbeat reference counts for that heartbeat region.
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41       -d     Specify region by device name.
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44       -u     Specify region by device uuid.
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47       -n     Adjust IO priority for the heartbeat thread. This  option  calls
48              the  ionice tool to set its IO scheduling class to realtime with
49              scheduling class data as provided.  This option is  usable  only
50              with the O2CB cluster stack.
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53       -h     Displays help and exit.
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SEE ALSO

57       mkfs.ocfs2(8)  fsck.ocfs2(8) tunefs.ocfs2(8) mounted.ocfs2(8) ocfs2con‐
58       sole(8) debugfs.ocfs2(8)
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AUTHORS

62       Oracle Corporation
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66       Copyright © 2004, 2009 Oracle. All rights reserved.
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70Version 1.4.3                     April 2009                   ocfs2_hb_ctl(8)
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