snapcopy.8

<B>Digital的Unix操作系统VAX 4.2源码</B>

.\" SCCSID: @(#)snapcopy.8	8.1	9/11/90
.TH snapcopy 8 VAX
.SH Name
snapcopy \- copy VAX 8600/8650 snapshot files
.SH Syntax
.B /etc/snapcopy 
[\fB\-d\fR]
.I directory
.SH Description
.NXR "snapcopy command"
.NXR "snapshot file"
When the system crashes on a VAX 8600 or VAX 8650 system,
the console subsystem creates snapshot files containing
binary information regarding the state of the hardware
at the time of the crash.  Snapshot files are typically used
by hardware maintenance personnel to analyze and repair the
cause of the system crash.
.PP
The
.PN snapcopy 
command copies
any valid snapshot files (called
.PN snap1.dat 
and
.PN snap2.dat) 
from the console 
RL02 disk into the directory specified.
The files are renamed to show the time of the copy:
.RS
.PP
.I hr:min:sec-\f(CWsnap1.dat\fP
.br
.I hr:min:sec-\f(CWsnap2.dat\fP
.RE
.PP
You should delete the comment character for the
.PN snapcopy
command in the
.PN /etc/rc.local
file only for VAX 8600 and VAX 8650 systems.
.PP
The
.I directory
is the name of the directory to which the snapshot files
are to be copied.
.SH Options
.IP \-d 5
Invalidates the files on the console RL02 disk, 
meaning that they can be rewritten by the console subsystem 
in the event of another system crash.
.SH Diagnostics
.B
snapcopy:  not a directory
.br
.B
snapcopy:  no write permission for directory
.br
.B
snapcopy:  could not chdir to directory
.br
The
.I directory
must exist and be writable.
.SH Files
.TP 17
.PN /dev/ttyc3
Special file by which 
.PN snapcopy
communicates with the system console terminal
.TP 
.PN /dev/crl
Special file by which 
.PN snapcopy
communicates with the console RL02 disk
.TP 
.PN /etc/rc.local
File that contains site-specific commands to be executed when
the ULTRIX system is brought to multi-user mode