1mdmonitord(1M) System Administration Commands mdmonitord(1M)
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6 mdmonitord - daemon to monitor metadevices
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9 /usr/sbin/mdmonitord [-t time_interval]
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13 The mdmonitord utility is part of Solaris Volume Manager. It monitors
14 and checks RAID1 (mirrors), RAID5 and hot spares.
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17 There are two methods for checking:
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19 o At fixed time intervals.
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21 o When a RAID-1 (mirror), RAID-5, or hot spare fails. A fail‐
22 ure generates an error event which triggers a check of
23 these metadevices.
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26 The following options are supported:
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28 -t Time interval in seconds. The default value is 0, which causes
29 probes to occur only upon an error. If you want to run mdmonitord
30 at a regular interval, a value of 1800 (seconds, every half hour)
31 is recommended as a starting point.
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35 The following exit values are returned:
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37 0 Successful completion.
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40 >0 An error occurred.
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44 See attributes(5) for descriptions of the following attributes:
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49 ┌─────────────────────────────┬─────────────────────────────┐
50 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
51 ├─────────────────────────────┼─────────────────────────────┤
52 │Availability │SUNWmdu │
53 └─────────────────────────────┴─────────────────────────────┘
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56 svcs(1), metaclear(1M), metadb(1M), metadetach(1M), metahs(1M),
57 metainit(1M), metaoffline(1M), metaonline(1M), metaparam(1M), metare‐
58 cover(1M), metarename(1M), metareplace(1M), metaroot(1M), metaset(1M),
59 metassist(1M), metastat(1M), metasync(1M), metattach(1M), svcadm(1M),
60 md.tab(4), md.cf(4), mddb.cf(4), md.tab(4), attributes(5), smf(5),
61 md(7D)
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67 Since frequent probes can affect performance, it is recommended that
68 the intervals between probes be limited.
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71 The mdmonitord service is managed by the service management facility,
72 smf(5), under the service identifier:
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74 svc:/system/mdmonitor
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79 Administrative actions on this service, such as enabling, disabling, or
80 requesting restart, can be performed using svcadm(1M). The service's
81 status can be queried using the svcs(1) command.
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85SunOS 5.11 25 Jul 2004 mdmonitord(1M)