SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

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PROBE Command
The PROBE SAC command tests the Fibre Channel connection to a SAC on an FCSA
NOTE: The PROBE SAC command is available on H06.04 and subsequent H-series RVUs.
PROBE is a sensitive command.
PROBE SAC Command
The PROBE SAC command sends and receives a data packet to test the Fibre Channel connection
to a SAC on an FCSA. The connection can be either an arbitrated loop or a link to a Fibre Channel
switch.
To issue the PROBE SAC on an arbitrated loop, the disk paths must be in a stopped state.
The PROBE SAC command displays no output unless an error occurs.
The syntax is:
PROBE [ / OUT file-spec / ] SAC $ZZSTO.#sac-name
[ , COUNT n [ , CONTINUE ] ]
[ , DATA pattern ]
[ , PORTNAME wwn ]
Wild-card characters are supported for the PROBE SAC command.
OUT file-spec
directs all SCF output to the specified file.
#sac-name
is the name of the SAC in the form #FCSA.SAC-sac.GRP-group.MOD-module.SLOT-slot.
For example:
#FCSA.SAC-2.GRP-110.MOD-2.SLOT-5
CONTINUE
specifies that the data packet continue being sent until the count is complete, even if an error
occurs.
COUNT n
specifies the number of times to send the data packet. Valid values are in the range 1 to 255.
DATA pattern
specifies a data pattern (up to 64 bytes) that can be used for diagnostic purposes. The data
pattern must be entered as a hexadecimal number without a leading %H.
PORTNAME wwn
specifies the worldwide name of a port in the Fibre Channel link connected to the SAC.
wwn must be entered as a 16-character hexadecimal number without a leading %H.
Specify a PORTNAME to test the connection to a Fibre Channel switch.
Do not specify a PORTNAME to test the connection to an arbitrated loop.
PROBE SAC Examples
• To test the arbitrated loop connected to SAC 1 on the FCSA in slot 3, module 3 of group 111:
-> PROBE SAC $ZZSTO.#FCSA.SAC-1.GRP-111.MOD-3.SLOT-3
• To test the connection between SAC 2 on an FCSA and port 50060E8004289461:
-> PROBE SAC $ZZSTO.#FCSA.SAC-2.GRP-112.MOD-2.SLOT-4, &
-> PORTNAME 50060E8004289461
268 Storage Subsystem Commands