HP 3000 Manuals HP 3000 Manuals
An Overview of the Restore Process
You use the RESTORE command to copy one or more files from tape to disk.
By choosing different RESTORE command options, you can, for example,
print a list of all files restored, restore files to a particular volume,
restore the system accounting structure, and restore the complete
hierarchical directory structure.
Restoring files involves the use of one or more tapes on a backup device.
The steps that you follow to complete the process are:
* locate and prepare the necessary tape or tapes
* check for duplicate file names
* issue a FILE command to assign a file name to the tape drive
* issue a RESTORE command to name the files you want to restore and
the options to use
CAUTION Do not use the STORE or RESTORE commands to transfer any of the
files originally on your system load tape from LDEV 1 to a
system disk other than LDEV 1. (These files are contained in
the SYS account and can be displayed by entering the SYSFILE
configurator of the SYSGEN utility and using the SHOW command.)
Also, do not use STORE and RESTORE to manipulate the files
within a configuration group. These configuration files come as
a set, and moving them between groups or systems makes the files
inaccessible which will cause problems immediately or at some
future time.
To prepare the tapes
Search your tape library for the STORE tape(s) containing the files you
want to restore. If necessary, you can use the LISTDIR parameter of the
RESTORE command to list a tape's contents. It displays information from
the tape directory and tape label without restoring any files. (The
LISTDIR parameter does not work with transport tapes created for MPE
V/E.)
For example, to find out if the STORE tape contains any HFS files, enter:
RESTORE *T;/ - @.@.@;LISTDIR
Chapter 6 discusses how the hierarchical file system affects STORE and
RESTORE procedures. Read "To name file sets in MPE and HFS syntax" and
"To use wildcard characters in the file set" for more information. For a
complete discussion of the hierarchical file system, read New Features of
MPE/iX: Using the Hierarchical File System (32650-90351).
The example below shows a sample RESTORE command and output from the
LISTDIR parameter:
RESTORE *T;@.SREXP.SYS;LISTDIR
________________________________________________________________________
| |
| |
| STORE/RESTORE VERSION A.21.01 (C) 1986 HEWLETT-PACKARD |
| CO. WED, MAR 30, 1990, 10:59 AM |
| |
| MPEXL MEDIA DIRECTORY |
| |
| MEDIA NAME : STORE/RESTORE-HP/3000.MPEXL |
| MEDIA VERSION : MPEXL 08.50 FIXED ASCII |
| REEL NUMBER : 1 |
| |
| MEDIA CREATION DATE |
| WED, MAR 30, 1990, 10:53 AM |
| |
| MEDIA CREATED WITH THE FOLLOWING OPTIONS |
| |
| MEDIA RECORD SIZE : 16384 |
| INTERLEAVE DEPTH : 1 |
| |
| FILENAME GROUP ACCOUNT CREATOR REEL SET |
| TDORSERR.SREXP .SYS BOB >= 1 |
| TSRBUGFX.SREXP .SYS BOB >= 1 |
| TSRDOC .SREXP .SYS BOB >= 1 |
| TSRERR .SREXP .SYS BOB >= 1 |
| TSRGLOB .SREXP .SYS BOB >= 1 |
| TSRINCL1.SREXP .SYS BOB >= 1 |
| TSRINCL2.SREXP .SYS BOB >= 1 |
| TSRINLC3.SREXP .SYS BOB >= 1 |
| TSRTAPE .SREXP .SYS BOB >= 1 |
| |
________________________________________________________________________
Chapter 6 discusses how the hierarchical file system affects STORE and
RESTORE procedures. Read "To name file sets in MPE and HFS syntax" and
"To use wildcard characters and character sets" for more information.
For a complete discussion of the hierarchical file system, read New
Features of MPE/iX: Using the Hierarchical File System (32650-90351).
To check for duplicate file names
Before you restore a file from a STORE tape, check whether a disk file
with the same name already exists. If a file with the same name resides
in the account and group or in the directory you are restoring to, the
disk file is overwritten by the tape file during the RESTORE process by
default.
To check for duplicate file names, use the LISTFILE command for each file
you intend to restore. Enter:
LISTFILE filename.groupname.accountname
Or, to use HFS syntax, enter:
LISTFILE path/filename
When you specify the set of files to look for with the LISTFILE command,
you can use wildcard characters. For example, to find any files in the
PUB group of the RESEARCH account, enter:
LISTFILE @.PUB.RESEARCH
Or, for example, to list all files and directories directly below the
current working directory, enter:
LISTFILE ./@
If at least one file exists, the system prints the file name at your
terminal. If none exist, the system prints the message NON-EXISTENT FILE
(CIERR 907).