This operation has several
options provided by XRC support. The options are: device address and
session number, SHOW, SHOW2, RESET, and RESET2.
- device address/session number/N
- This option directs a storage control to dump its internal control
queues, called a state save.
- device address
- Tells XRC which storage control to direct the request to. Devices
defined in an alternate subchannel set can be specified by coding
a 5-digit device address, where the leading digit indicates the subchannel
set in which the device is physically defined. If you specify fewer
than 5 digits, the command is issued to the device that is currently
logically in subchannel set 0. If a HyperSwap has occurred, this could
be the device that was physically defined in an alternate subchannel
set.
- session number
- Is the XRC storage control session number. If a number is not
applicable, use zero.
- N
- Requests a non-disruptive state save, that is, a state save without
warmstart. If the storage control microcode doesn't support a non-disruptive
state save, and the SCTRAP setting is ON, a standard state save is
taken.
Example: The following example is the device
address/session number operation:
F ANTAS000,STATESAVE F40 4
- SHOW
- The SHOW option directs XRC to show the timestamp of
the last state save. The state save is taken for the primary storage
controls associated with a logical XRC session.
Example: The
following example is the SHOW operation:
F ANTAS003,STATESAVE SHOW
- SHOW2
- The SHOW2 option directs XRC to show the timestamp of the last
state save. The state save is taken for the secondary storage controls
associated with a logical XRC session.
Example: The following
example is the SHOW2 operation:
F ANTAS003,STATESAVE SHOW2
- RESET
- The RESET option directs XRC to reset to zero for the timestamp
of the last state save. The state save is taken for the primary storage
controls associated with a logical XRC session.
Example: The
following example is the RESET operation:
F ANTAS003,STATESAVE RESET
- RESET2
- The RESET2 option directs XRC to reset to zero for the timestamp
of the last storage control state save. The state save is taken for
secondary storage controls associated with a logical XRC session.
Example:
The following example is the RESET2 operation:
F ANTAS003,STATESAVE RESET2