HP NonStop G-Series - Manual (Page 204)

Using Labeled Tapes
Guardian User’s Guide — 425266-001
10 -30
Compressing a Tape Dump File
Compressing a Tape Dump File
You can compress a tape dump file using the COPYDUMP utility, which usually resides
in the file $SYSTEM.SYS
nn .COPYDUMP.
To use the COPYDUMP program to copy and compress a memory dump file from disk
or tape to disk, enter:
> COPYDUMP source-file , dest-file
source-file
specifies the memory dump file that is to be copied and compressed. Specify either
the name of the tape drive where the tape is loaded or the name of a disk dump file
you want to copy. If source-file is a tape file, you must create it by performing a
tape dump as described in the operator’s guide for your system. If source-file is a
disk file, you must create it by doing a bus dump as described in the operator’s
guide for your system or by using the RCVDUMP program or the RECEIVEDUMP
command.
dest-file
specifies the destination of the COPYDUMP operation. For dest-file, specify the
name of a disk file. If dest-file does not exist, it is created during the COPYDUMP
operation. If dest-file exists, it must be empty (EOF=0) and have file code 9614.
For a complete list and description of all COPYDUMP options, see the TACL Reference
Manual.
Examples
Copying and Compressing a Tape Dump File
If a tape dump file resides on the tape mounted on the tape drive $TAPE2, to copy and
compress the tape dump file into the disk file $DATA.DUMPS.CPU1, enter:
> COPYDUMP $TAPE2, $DATA.DUMPS.CPU1
Compressing a Disk Dump File
To compress the disk dump file $BAS10.DUMPS.CPU3 into the disk file
$BAS10.CDUMPS.CPU3, enter:
> COPYDUMP $BAS10.DUMPS.CPU3, $BAS10.CDUMPS.CPU3
Note. You can also use FUP (the CREATE and COPY commands) to copy tape dump files to
disk files. However, using COPYDUMP is faster, and it generates a smaller disk dump file
because it compresses the dump. Also, COPYDUMP automatically determines the size of the
disk dump file, whereas you must specify the extent size of the disk file if you use FUP.