System Administration Commands                     mdmonitord(1M)



NAME
     mdmonitord - daemon to monitor metadevices

SYNOPSIS
     /usr/sbin/mdmonitord [-t timeinterval]


DESCRIPTION
     The mdmonitord utility is part of Solaris Volume Manager. It
     monitors and checks RAID1 (mirrors), RAID5 and hot spares.


     There are two methods for checking:

         o    At fixed time intervals.

         o    When a RAID-1 (mirror), RAID-5, or hot spare fails.
              A  failure generates  an error event which triggers
              a check of these metadevices.

OPTIONS
     The following options are supported:

     -t    Time interval in seconds.  The  default  value  is  0,
           which  causes  probes  to occur only upon an error. If
           you want to run mdmonitord at a  regular  interval,  a
           value  of  1800  (seconds,  every half hour) is recom-
           mended as a starting point.


EXIT STATUS
     The following exit values are returned:

     0     Successful completion.


     >0    An error occurred.


ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:













SunOS 5.11          Last change: 25 Jul 2004                    1






System Administration Commands                     mdmonitord(1M)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Availability                 SUNWmdu                     
    


SEE ALSO
     svcs(1),    metaclear(1M),    metadb(1M),    metadetach(1M),
     metahs(1M),  metainit(1M),  metaoffline(1M), metaonline(1M),
     metaparam(1M),       metarecover(1M),        metarename(1M),
     metareplace(1M),  metaroot(1M),  metaset(1M), metassist(1M),
     metastat(1M),   metasync(1M),   metattach(1M),   svcadm(1M),
     md.tab(4),  md.cf(4),  mddb.cf(4), md.tab(4), attributes(5),
     smf(5), md(7D)


NOTES
     Since frequent probes can affect performance, it  is  recom-
     mended that the intervals between probes be limited.


     The mdmonitord service is managed by the service  management
     facility, smf(5), under the service identifier:

       svc:/system/mdmonitor




     Administrative actions on this service,  such  as  enabling,
     disabling,  or  requesting  restart,  can be performed using
     svcadm(1M). The service's status can be  queried  using  the
     svcs(1) command.





















SunOS 5.11          Last change: 25 Jul 2004                    2