HP 3000 Manuals HP 3000 Manuals
Specifying a Destination for the Restored Files
When you restore files from tape to disk, RESTORE tries to restore a file
to the logical device compatible with the device type and subtype
specified in the file's label and the device type and subtype of the
mounted home volume set. If it cannot find such a device, RESTORE tries
to restore the file to a device with the device class specified in the
file's label and the home volume set. If it cannot find a device with
the appropriate device class, RESTORE tries to restore the file to any
member of the home volume set; if it cannot, it does not restore the
file.
Rather than letting MPE/iX determine the location of the restored files,
you can determine where the files are copied. This can include
specifying:
* the volume set for the restored files
* the device for the restored files
* the group, account and creator for the restored files
The following sections teach you how to specify the destination of the
files you are restoring.
To restore files to a specific volume set
Use the VOL, VOLCLASS, and VOLSET parameters of the RESTORE command to
restore files to a particular volume, volume class, or volume set. When
using these parameters, note the following exceptions:
* You cannot use VOL, VOLCLASS, or VOLSET together with the DEV
parameter.
* If a file's group and account do not exist on the volume specified
with VOLSET, the file is restored to the volume set where its
group and account do exist.
* The VOL, VOLCLASS, and VOLSET parameters are not valid for
restoring files from transport tapes.
Use the VOLSET parameter to reference a particular volume set. For
example, to restore all the files on the STORE tape to PRIVATE_VOL_A,
enter:
FILE T;DEV=TAPE
RESTORE *T;/;VOLSET=PRIVATE_VOL_A
Use VOLCLASS to reference a particular volume class. If there is no room
in the volume class you indicate, RESTORE restores the files to a volume
within the volume set. If there is no room in the volume set, RESTORE
does not restore the files. For example, to restore files to the volume
class CLASS_B within the PRIVATE_VOL_A volume set, enter:
FILE T;DEV=TAPE
RESTORE *T;/;VOLSET=PRIVATE_VOL_A;VOLCLASS=CLASS_B
Use VOL to reference a particular volume. If you do not indicate a
volume class or volume set, the volume you indicate must be part of the
system volume set. If there is no room on the volume you name, RESTORE
restores the file to another volume within the volume class. If there is
no room within the volume class, RESTORE restores the file to a volume
within the volume set. As an example, to restore files to the volume
named VOL_C within the PRIVATE_VOL_A volume set, enter:
FILE T;DEV=TAPE
RESTORE *T;/;VOLSET=PRIVATE_VOL_A;VOL=VOL_C
Refer to Volume Management Reference Manual (32650-90045) for more
information on using volumes, volume classes, and volume sets.
To restore files to a specific device
Use the DEV parameter of the RESTORE command to specify the device to
which you want to restore files. You can reference a device either by
its LDEV number or its device class. Keep in mind, however, that
specifying the logical device number is more specific since more than one
disk can belong to the same device class. Note that you cannot use the
DEV parameter with VOLSET, VOLCLASS, or VOL parameters.
For example, to restore FILE1 in the group OPERATOR of the SYS account to
LDEV 2, you enter:
FILE T;DEV=TAPE
RESTORE *T;FILE1.OPERATOR.SYS;DEV=2
Or, to restore all of the files in the accounting directory and any files
and directories below it to LDEV 2, enter:
FILE T;DEV=TAPE
RESTORE *T;/accounting/;DEV=2
If you name a device class, RESTORE allocates the files to any of the
home volume set's volumes within that class. If you name a specific
logical device, RESTORE restores the file to that device only if the
device is a system disk.
You cannot use the DEV parameter of the RESTORE command with VOLSET,
VOLCLASS, or VOL parameters.
To restore files to their original group, account, and creator
Files on STORE tapes belong to the same group, account, and creator that
they belonged to on disk. You restore files to their original group,
account, or creator, or if you have the correct capabilities, you can use
RESTORE command options to copy a file to your own group and account or
to copy a file to a different group, account, or creator. If a file's
account, group, or creator have been deleted from your system after
storing the file to tape, you can recreate it as you restore the file
from tape with the CREATE parameter. You must have system manager (SM)
or system supervisor (OP) capability to create a new account, and system
manager (SM), system supervisor (OP), or account manager (AM) capability
to create a new group.
NOTE The RESTORE command sets account, group, and user capabilities to
their default values when it creates them, which may not be the
same capabilities they had on the source system.
For example, suppose you stored all files in the account FEBRECS to tape
on the first of March and then purged the account, its users, and its
groups from t he system. Several months later, a user asks you to
restore the files in the FEBRECS account. Using the CREATE parameter,
you can recreate the account , groups, and creators as you restore the
files. For example:
FILE T;DEV=TAPE
RESTORE *T;@.@.FEBRECS;CREATE=GROUP,ACCOUNT,CREATOR
Or alternatively, you could enter:
RESTORE;;CREATE
The default restores all files and creates all missing structures.
To restore files to your group and account
Regardless of the group, account, or creator from which files were
stored, you can restore files into your own group and account if you have
read access to the files on the tape or if you have system manager (SM),
system supervisor (OP), or account manager (AM) capability. ("Read
access" above implies that if the files were restored to the groups and
accounts from which they came, and those groups and accounts had default
access capabilities, you would be able to read the files on disk, such as
with FCOPY.)
To use the LOCAL parameter to restore all the files on the STORE tape to
your own group and account, enter:
FILE T;DEV=TAPE
RESTORE *T;/;LOCAL
The files will be restored to your logon group and account with your
logon user name as the creator.
To restore a file to a different group, account, or creator
You can use the GROUP, ACCOUNT and CREATOR parameters to change a file's
group, account, or creator as you restore it from tape. You can use any
of the parameters alone or in combination, but you cannot use them with
the LOCAL parameter. You must have system manager (SM) or system
supervisor (OP) capability to change a file's account. You must have
system manager (SM), system supervisor (OP), or account manager (AM)
capability to change a file's group.
A user with fewer capabilities than described above can restore a file to
a different account, group or creator if the following conditions are
met:
* The group, account, and file-level access is available to the
user.
* The file has no lockword, or if it does, the user knows the
lockword.
* The file is not privileged.
For example, to restore the files that belong to the PUB group of the
SMITH account on tape to the PUB group of the JONES account on disk,
enter:
FILE T;DEV=TAPE
RESTORE *T;@.PUB.SMITH;GROUP=PUB;ACCOUNT=JONES
Or, for example, to restore the files in the PUB group of the SMITH
account on tape to the PUB group of the JONES account on the system disk,
changing the creator to MARTY:
FILE T;DEV=TAPE
RESTORE *T;@.PUB.SMITH;GROUP=PUB;ACCOUNT=JONES;CREATOR=MARTY
You must name a user that exists in the account as the new creator, or
specify CREATE to have MPE/iX create the user in the directory. If
RESTORE does not find the user name, it does not restore the file. If
you use the CREATOR parameter without specifying an existing user name,
RESTORE restores the file only if the tape file's creator exists in the
file system directory.
To restore the hierarchical directory structure
You use the DIRECTORY parameter to place the directory structure on tape
when you intend to use the tape to reload the system. MPE/iX regenerates
the entire hierarchical directory structure before it restores any files.
It also restores the system accounting directories for any volume sets
saved on the tape. If the STORE tape is missing a directory needed to
restore a file, one of two things can happen:
* If you use the CREATE option with the RESTORE command, all
directories matching the specified file set are restored. If the
STORE tape is missing a directory that is required to restore a
file, MPE/iX creates it with default security provisions.
* If you omit the CREATE option, MPE/iX prints an error message for
every file that it cannot restore due to a missing directory
component. As a result, it restores only those files within the
directory structure stored to tape, which prevents previously
deleted users, groups, directories or accounts from reappearing on
the system.
If you reload your system directory, and you want all of the files
outside your system domain to have their corresponding groups, accounts,
and creators created, enter the RESTORE command as follows:
RESTORE *T;/;DIRECTORY;CREATE=GROUP,ACCOUNT,CREATOR
Overwriting and Retaining Disk Files
By default, RESTORE will replace any disk files that have the same fully
qualified file name as the file you are restoring from tape. If you are
restoring a large number of files, be sure that you do not overwrite an
important file or files. Use the KEEP parameter of the RESTORE command.
To retain disk files.
Your STORE tape might contain several files, some of which have names
that are the same as files on disk. To restore only those tape files
with names that do not duplicate disk file names, use the following
commands:
FILE T;DEV=TAPE
RESTORE *T;/;KEEP
Using KEEP in the command above tells the system not to replace the files
already on disk with those with the identical names on tape. You will
successfully restore to disk all files on the tape that do not have the
same names as files already on disk.
To overwrite disk files.
To explicitly require RESTORE to overwrite disk files that have the same
fully qualified file names, use the NOKEEP parameter in your RESTORE
command. For example:
FILE T;DEV=TAPE
RESTORE *T;/;NOKEEP
Specifying Modification and Last Access Date
When you restore a file or files, you can choose either to retain the
modification date and last access date stored with the file on tape or to
change the file's modification date and last access date to the date you
restored the file.
To retain the dates.
To retain the modification and last access date in the file label on
tape, use the OLDDATE parameter of RESTORE. Enter:
FILE T;DEV=TAPE
RESTORE *T;/;OLDDATE
To change the dates.
To change the modification and last access date to the date you restored
the files, use the NEWDATE parameter. For example:
FILE T;DEV=TAPE
RESTORE *T;/;NEWDATE
It is a good idea to use NEWDATE when you restore archived files, so that
you do not archive them again in the near future. NEWDATE is the
default.
Listing Restored Files
Whenever you RESTORE a set of files, the system displays the total number
of files restored at your terminal. If there was an error, it also
displays the names of files not restored, the reason each was not
restored, and the total number of files not restored. Use the SHOW
parameter to display the names and additional information about the files
restored and to list them on your system printer as well as at your
terminal.
The output listings appear in the same format as they do for the STORE
command. Refer to Chapter 6 for information on the SHOW options, as well
as the format and fields in the listings.