Selecting the startup type and catalog reconfiguration

In a DIALOG startup, the operator is prompted to select the type of startup by responding to the message:

NSI6005 SYSTEM PARAMETER STUPTYPE = (&00). SHALL VALUE BE CHANGED? 
        REPLY ( U(NCHANGED), W(ARM), C(OLD), S(ELECTIVE), Z(IP), 
        T(SN FILE RESET ONLY), J(OIN AND TSN FILE RESET), EOT=UNCHANGED)

In FAST and AUTOMATIC modes, this decision can only be made using the system parameter STUPTYPE.

In DIALOG startup, the following types can be specified:

• U=Unchanged

  The startup is the type defined by systems support with the system parameter STUPTYPE.

• W=Warm start

  This is the default setting for the STUPTYPE system parameter.

  All jobs that were in the JMS job queue (listed according to user ID and task sequence number for type 1 and type 2) and which were not processed during the previous session are now scheduled for processing by job control.

• C=Cold start

  This type of startup ignores any jobs in the job queue. They are deleted without being processed. If, for example, a disk error in the job queue files has caused a system breakdown, the next session must always commence with a cold start. Because after a disk error, the queue must be completely recreated. A cold start should be avoided whenever possible, since it causes loss of one-off and repeat jobs. In the case of one-off and repeat jobs, the JMP utility routine can be used to reconstruct the necessary ENTER-JOB commands prior to the cold start (see section "JMP: reconstruction of batch jobs").

• T=First start with resetting of the TSN file

  This type of startup must be used the first time a pubset is used.

  The resetting of the TSN file ($TSOS.TSOSJOIN.TSNN) causes the JMS job queue and the TSN file to be reset. This means that existing jobs are deleted, the session number is reset to 1 and the next job number (tsn) the system assigns is 0001 or 0AAA, depending on the TSN mode.

• J=First start with resetting of the user catalog

  The user catalog, JMS job queue and TSN file are all reset.

  The resetting of the user catalog causes an existing user catalog to be deleted and a new one to be generated. This new user catalog contains entries for the system user IDs only (SERVICE, SYSAUDIT, SYSDUMP, SYSGEN, SYSHSMS, SYSMAREN, SYSNAC, SYSPRIV, SYSSNAP, SYSSNS, SYSSOPT, SYSSPOOL, SYSUSER, SYSROOT, SYSOPR, SYSWSA and TSOS).

  CAUTION!
  All files except for those under the TSOS ID are deleted. This means that access (via the catalog) to all user files except the system files is no longer possible. The storage space previously occupied by these deleted user files is also released.

  The user IDs of the system (with the exception of TSOS and SERVICE) are assigned the account number SYSACC and are locked. Systems support can release these user IDs by means of the UNLOCK-USER command. If that is the case, they should be assigned system access control attributes.

  The resetting of the TSN file ($TSOS.TSOSJOIN.TSNN) causes the JMS job queue and the TSN file to be reset. This means that existing jobs are deleted, the session number is reset to 1 and the next job number (tsn) the system assigns is 0001 or 0AAA, depending on the TSN mode.

• S=Selective start

  Selective startup enables the operator to specify that certain queues are to be retained; the remainder are handled by the system as for a a cold start.

  After entering S in response to message NSI6005 and responding to the message NSI6010, the following message appears:

  ? JOBP... JMS0510 SPECIFY QUEUE(S) OF BATCH JOBS TO BE SAVED WITH
            SELECTIVE START. REPLY: (1: AWAITING PROCESSING; 2: BEING
            PROCESSED)

  By responding to the JMS0510 message the operator can specify the JMS jobs (queues Q1 and Q2) which are to be retained.

  Responses have the following format: JOBP.n

  where
  n=1 is the job queue for batch jobs to be processed and
  n=2 indicates the batch jobs that were being processed.

  If JOBP. is specified, no queues are selected.

  Example

  JMS0510 SPECIFY QUEUE(S) OF BATCH JOBS TO BE SAVED WITH SELECTIVE 
          START. REPLY: (1: AWAITING PROCESSING; 2: BEING PROCESSED) 
  JOBP.1

  The old queue files (JOBPOOL file for the JMS jobs in queues Q1 and Q2) are then checked to see whether they contain any jobs which should be retained. If this is the case, all entries made for jobs to be processed are transferred to the new queue file and the associated counters set accordingly. Once the files have been read they are closed and deleted from the catalog. The new files will be processed in the new session.

• Z=Zip start

  This startup type is used when there is not enough disk space available for a normal start. When “Z” is entered in response to message NSI6005, no attempt is made to allocate disk space for queue files. This mode is only intended for buffering or deleting files after system initialization in order to obtain free storage space on the disks. No other functions should be performed in this session.

By replying the following message in DIALOG startup, the operator can similarly determine whether and how the user catalog is to be reconstructed:
(see the description of the system parameter RECONUC)

NSI6010 SYSTEM PARAMETER RECONUC = (&00). SHALL VALUE BE CHANGED? 
        REPLY ( U(NCHANGED), N(O), B(ACKUP), T(SOSCAT), A(LL), R(ESET), 
        EOT=UNCHANGED )