man/man1m/sndrsyncd.1m

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 Copyright (c) 2007, Sun Microsystems, Inc. All rights reserved.
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 SNDRSYNCD 1M "Oct 2, 2007"
 NAME
sndrsyncd - Availability Suite Remote Mirror update resynchronization daemon
 SYNOPSIS

/usr/lib/sndrsyncd


 DESCRIPTION

The sndrsyncd daemon automates update resynchronization after a network
or machine failure and invokes Point-in-Time Copy copies when needed to protect
the data volumes being updated during a resynchronization.

The daemon is notified by the kernel when a network link being used by Remote
Mirror goes down and invokes the sndradm(1M) command with the -u
option to resynchronize all Remote Mirror sets which have autosync switched on
and are using the network link. See sndradm(1M) for details on how to
configure autosync for a Remote Mirror set.

The daemon is also notified when any Remote Mirror resynchronization starts or
completes. The daemon takes Point-in-Time Copy snapshots, if configured in the
Availability Suite configuration file. On a secondary server, the daemon checks
if a file system is currently mounted on the secondary volume and informs the
kernel not to allow the synchronization to start if the file system is
currently mounted.
 EXIT STATUS
0

Daemon started successfully.


>0

Daemon failed to start.


 FILES
/lib/svc/method/svc-rdcsyncd

Shell script for starting sndrsyncd.


/lib/svc/method/svc-rdc

Shell script for stopping sndrsyncd.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving


 SEE ALSO

iiadm(1M), sndradm(1M), sndrd(1M), svcadm(1M),
ds.log(4), rdc.cf(4), attributes(5)
 NOTES

Do not manually stop the sndrsyncd deamon. If you need to manually stop
sndrsyncd perform these steps. This stops both the sndrd and
sndrsyncd daemons.
# svcadm disable svc:/system/nws_rdc


# svcadm disable svc:/system/nws_rdcsyncd


Do not manually start or restart the sndrsyncd deamon. If you need to
manually start sndrsyncd perform these steps. This starts both the
sndrd and sndrsyncd daemons.
# svcadm enable svc:/system/nws_rdc


# svcadm enable svc:/system/nws_rdcsyncd


See svcadm(1M) for additional information.