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Maintenance Commandsnhcrfsd(1M)


NAME

 nhcrfsd - Reliable NFS supervisor daemon

SYNOPSIS

 /opt/SUNWcgha/sbin/nhcrfsd [-h] [-v] [-u URL]

DESCRIPTION

The nhcrfsd daemon manages the Reliable NFS feature of the Foundation Services. The nhcrfsd daemon is started when the system comes up (at init level 2). By default, the nhcrfsd daemon is monitored by the Daemon Monitor, nhpmd(1M).

OPTIONS

The following options are supported:

-h

Display help on options and exit.

-u URL

You must specify the URL of the nhfs.conf file.

-v

Display the version and the build date of the daemon and exit.

EXTENDED DESCRIPTION

You must be logged on as superuser to run the nhcrfsd daemon.

The nhcrfsd daemon uses the nhfs.conf file and the /etc/vfstab file.

The nhfs.conf File

The following parameters must be set in the nhfs.conf file:

  • RNFS.Slice

  • RNFS.StatdAlternatePath

  • RNFS.Share

For more information about these parameters, see the nhfs.conf(4) man page.

The /etc/vfstab File

Entries in vfstab use the syntax described in vfstab(4). For each master-eligible node, the vfstab entry must contain the following:

  • Information for mounting Reliable NFS replicated slices so that they can be exported by the NFS server.

  • Information for mounting the file systems to be replicated by NFS.

The following paths are used by applications:

  • Mount Reliable NFS replicated slices locally (on the master-eligible nodes).

    /dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s3 /export ufs - no logging
    /dev/dsk/c0t0d0s4 /dev/rdsk/c0t0d0s4 /SUNWcgha/local ufs - no logging

    This example mounts the Reliable NFS replicated slice /dev/rdsk/c0t0d0s3 on /export and /dev/rdsk/c0t0d0s4 on /SUNWcgha/local/.

    The RNFS.Share property allows /export to be exported by NFS from the master node.

  • Mount the Reliable NFS replicated slices by NFS (on the master-eligible nodes).

    10.28.3.1:/SUNWcgha/local/export - /SUNWcgha/remote nfs - no fg,hard,intr,noac

    This example mounts /SUNWcgha/local/export of the master node on the /SUNWcgha/remote mount point of the master and vice-master nodes.

The specified mount options must be selected according to the type of mount entry.

You can use the noac option if the impact on performance is acceptable. For information about how to enable and disable the noac option, see the Netra High Availability Suite Foundation Services 2.1 6/03 Cluster Administration Guide.

EXIT STATUS

The exit status for nhcrfsd is one of the following:

0

Daemon started successfully

1

Daemon failed to start

ENVIRONMENT VARIABLES

The nhcrfsd daemon uses a catalog of messages in compliance with International Language Environments (I18N) standards. The NLSPATH variable must contain the pattern: /opt/SUNWcgha/lib/locale/%L/LC_MESSAGES/%N

FILES

/etc/opt/SUNWcgha/nhfs.conf

Configuration and addressing information for the different Foundation Services. The URL for this file could be file:///etc/opt/SUNWcgha/nhfs.conf.

/opt/SUNWcgha/lib/locale/C/LC_MESSAGES/CRFS.cat

Default catalog of messages

NOTES

All nhcrfsd daemon messages are logged with the Solaris(TM) syslog facility. This facility uses message priorities of the facility.level form. The nhcrfsd daemon uses the local0 facility and a level that can be alert, err, or info.

ATTRIBUTES

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

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityEvolving
AvailabilitySUNWnhfsa, SUNWnhfsb

SEE ALSO

nhfs.conf(4), nhcrfsadm(1M), nhpmd(1M), and syslog.conf(4).


Netra HAS FS 2.1Go To TopLast Changed September 2004