StorageTek Host Software Component 6.0, System Programmer'S Manual

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300 VM/HSC 6.0 System Programmer’s Guide
1st ed., 6/30/04 - 312579601
If a host has abended, the active flag is left on. If the host cannot be restarted and ended
normally, use the SET HSCLEVEL utility to reset the active flag.
How the SET Utility Functions
One of the facilities provided by the SET utility is to change the RESERVE QNAME that
was defined during LIBGEN and stored in the CDS. The RESERVE QNAME is used by
the HSC and utilities running on each host to ensure that access to the CDS is serialized.
The SET utility and HSC use an additional StorageTek-defined RESERVE QNAME to
maintain serialization while the customer-defined RESERVE QNAME is being changed.
The SET utility issues two RESERVEs against the CDS prior to an update, consisting of:
• A RESERVE with the StorageTek-defined QNAME ‘‘STKENQNM’’
• A RESERVE using the existing customer-defined QNAME (or the default value of
‘‘STKALSQN’’).
Table 14. HSC State to Run SET Options
SET Option Affected HSCs All Other HSCs
ACSDRV Down Active
CLNPRFX Down Down
COMPRFX Active Active
DELDISP Active Active
EJCTPAS Active Active
FREEZE Active Active
HOSTID Down Active
HSCLEVEL Down Active
MAJNAME Down Down
NEWHOST Active Active
NNLBDRV Down Active
SCRLABL Active Active
SLIDRIVS
Down
*
*
In some cases, the SLIDRIVS parameter can be run effectively with the HSC ac-
tive. Refer to “Running SET SLIDRIVS With the HSC Active” on page 313 for
more details.
Down
*
SLISTATN Down Active
SMF Active Active
TCHNIQE Down Down
Set