NAME

/etc/mirrorlog − state-change logger for mirror disk subsystem

SYNOPSIS

mirrorlog [−p progname]

Remarks:

This command requires installation of optional DataPair/800 software (not included in the standard HP-UX operating system) before it can be used. 

DESCRIPTION

In response to state changes in any disk mirror, mirrorlog writes a description of all mirrors to the log file, /etc/mirrortab.  This file is used to reconfigure mirrors after a reboot.  See mirrortab(4) for a description of the format.

The −p option causes mirrorlog to execute progname whenever a mirror’s fail flag comes on.  This allows the System Administrator to take special action, like mail notification or logging, in the case of disk failures. 

Mirrorlog can be executed only by the super-user. 

One and only one mirrorlog process should be running at all times.  If mirrorlog dies, mirroring continues to function, except that mirror requests other than −l are rejected, and some mirrored writes block indefinitely.  Diagnostic messages appear on the system console.  To recover, restart mirrorlog.

AUTHOR

Mirrorlog was developed by Hewlett-Packard. 

FILES

SEE ALSO

mirror(1m), mirrortab(4). 

Hewlett-Packard Company  —  HP-UX Release 7.0: Sept 1989