Ch 9. TECHNICAL ARTICLES [ COMMUNICATOR 3000 MPE MPE/iX RELEASE 4.0 ] MPE/iX Communicators
COMMUNICATOR 3000 MPE MPE/iX RELEASE 4.0
Chapter 9 TECHNICAL ARTICLES
Combined SLT and STORE Set
by Pat Alvarez
Commercial Systems Division
The following information describes how to create the combined system
load tape (SLT) and STORE Set.
SYSGEN USER INTERFACE
The TAPE command has been modified in the system generator (SYSGEN), in
order to store files after the SLT on a tape:
TAPE [[MODE = ] VERBOSE ]
[ NOCHANGE ]
[ NOCONFIG ]
[ NODIAG ]
[[DEST = ] OFFLINE ]
[[STORE= ] filesetlist string ]
When the STORE option is used, files are stored after the SLT as
specified through the filesetlist string. The filesetlist string
parameter is the same as the filesetlist parameter that is specified when
using the STORE utility (refer to the STORE utility for more details).
The only difference is that it specifies a set of files to be stored
after an SLT as opposed to just a normal store to a tape.
If you want to specify STORE options (that is, SHOW, PROGRESS), they can
be specified through the use of an indirect file. If the STORE results
in an error, the normal STORE utility errors are displayed, and the user
is left in SYSGEN. The state of the SLT or STORE Set will depend on the
error. If the STORE option is used without specifying a filesetlist
(that is, STORE=""), it is the same as invoking the STORE utility without
a filesetlist. The files that are stored will depend on the user
capabilities.
Storing files after the SLT will not work for a remote device. If SYSGEN
detects that the boot tape is being created on a remote device and the
STORE option has been specified, it will display an error message and the
TAPE command will fail.
NOTE The use of the TAPE(TA) command to store files is not backward
compatible. If a version of SYSGEN that allows the STORE option is
used with an older version of STORE, the boot tape creation will
fail.
An example of how to use the STORE option is as follows.
sysgen>TA STORE="@.pub.sys"
or
sysgen>TA STORE=""
Since the parameter to the STORE option is a string, it must be enclosed
within quotes.
If errors other than media write errors are encountered while attempting
to store files after the SLT (that is, can not open tape device, can not
allocate resources, and so on), the TAPE command will fail and the SLT
tape will be marked as bad.
RESTORE INTERFACE
When a combined SLT/STORE Set is used to restore files, the following
will occur:
* Single Reel Combined SLT/STORE Set:
RESTORE will skip past the SLT on the reel, prior to
restoring any files.
* Multireel Combined SLT/STORE Set:
If one of the reels that contain SLT information is
mounted, RESTORE will skip past the SLT beginning with that
tape. What this means is, reel one does not have to be
mounted first, in order for the RESTORE to work. When a
reel switch must occur while RESTORE is skipping past the
SLT, it will request the next reel.
The option RESTORESET is an invalid option when a combined SLT/STORE Set
is being used during a restore.
NOTE A combined SLT/STORE Set cannot be restored on a system running a
version of STORE or TurboSTORE prior to XL Release 3.1.
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