StorageTek 6 manual SET Host ID, newhost, oldhost, SET HSC Level, host-id

Set

SET Host ID

HOSTID

specifies that the old host ID is being changed to a new name.

(newhost)

specifies a 1- to 4-character host ID which also serves and the SMF system ID. This host ID must also be specified by the LIBSUBSYS parameter in the ACS SYSPROF file. newhost cannot already be defined in the CDS.

FORHOST

specifies the old host ID.

(oldhost)

specifies a 1-to 8-character host ID. This host must not be marked active in the CDS. An HSC can be down but still marked active. SET HOSTID would fail to run. To be marked inactive, the HSC, in the host that is down, must be brought up and then shut down. Also, another host could perform cross-host recovery on the HSC that is down, but marked active. Either of these change the status in the CDS of the down HSC from active to inactive. See “SET HSC Level” on page 309 for information about resetting operating flags.

Note: You must delimit the HOSTID (newhost or oldhost) with quotes when this ID is in lower case (such as Cray station users).

SET HSC Level

HSCLEVEL

specifies that the HSC active and release level indicators are to be cleared for the designated host.

Notes: If used, HSCLEVEL should be performed only when the host designated in host-id is inactive.

These indicators remain set after an abrupt termination of the HSC has occurred (e.g., a cancellation of the HSC or a crash of the operating system).

(OFF)

specifies that the HSC active and HSC release level indicators for the designated host are to be cleared.

FORHOST

specifies that the active indicators are to be cleared for the designated host.

(host-id)

specifies the 1- to 8-character host ID of the host to which the operation is restricted.

Note: StorageTek recommends the following alternatives to executing SET HSCLEVEL because they reset the HSC indicators and recover resources owned by the failing host:

Chapter 4. Utility Functions 309

1st ed., 6/30/04 - 312579601