1DMEVENTD(8) System Manager's Manual DMEVENTD(8)
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6 dmeventd — Device-mapper event daemon
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9 dmeventd [-d [-d [-d]]] [-f] [-h] [-l] [-R] [-V] [-?]
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12 dmeventd is the event monitoring daemon for device-mapper devices.
13 Library plugins can register and carry out actions triggered when par‐
14 ticular events occur.
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17 Mirror
18 Attempts to handle device failure automatically. See
19 lvm.conf(5).
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21 Raid
22 Attempts to handle device failure automatically. See
23 lvm.conf(5).
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25 Snapshot
26 Monitors how full a snapshot is becoming and emits a warning to
27 syslog when it exceeds 80% full. The warning is repeated when
28 85%, 90% and 95% of the snapshot is filled. See lvm.conf(5).
29 Snapshot which runs out of space gets invalid and when it is
30 mounted, it gets umounted if possible.
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32 Thin
33 Monitors how full a thin pool data and metadata is becoming and
34 emits a warning to syslog when it exceeds 80% full. The warning
35 is repeated when 85%, 90% and 95% of the thin pool is filled.
36 See lvm.conf(5). If the thin-pool runs out of space, thin vol‐
37 umes are umounted if possible.
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40 -d
41 Repeat from 1 to 3 times ( -d, -dd, -ddd ) to increase the
42 detail of debug messages sent to syslog. Each extra d adds more
43 debugging information.
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45 -f
46 Don't fork, run in the foreground.
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48 -h
49 Show help information.
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51 -l
52 Log through stdout and stderr instead of syslog. This option
53 works only with option -f, otherwise it is ignored.
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55 -?
56 Show help information on stderr.
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58 -R
59 Replace a running dmeventd instance. The running dmeventd must
60 be version 2.02.77 or newer. The new dmeventd instance will
61 obtain a list of devices and events to monitor from the cur‐
62 rently running daemon.
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64 -V
65 Show version of dmeventd.
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68 lvm(8), lvm.conf(5)
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72Red Hat Inc DM TOOLS 2.02.143(2)-RHEL6 (2016-12-13) DMEVENTD(8)