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smp_rep_general - Man Page

invoke REPORT GENERAL SMP function


smp_rep_general [--brief] [--changecount] [--help] [--hex] [--interface=PARAMS] [--raw] [--sa=SAS_ADDR] [--verbose] [--version] [--zero] SMP_DEVICE[,N]


Sends a SAS Serial Management Protocol (SMP) REPORT GENERAL function request to an SMP target. The SMP target is identified by the SMP_DEVICE and the SAS_ADDR. Depending on the interface, the SAS_ADDR may be deduced from the SMP_DEVICE. The mpt interface uses SMP_DEVICE to identify a HBA (an SMP initiator) and needs the additional ,N to differentiate between HBAs if there are multiple present.


Mandatory arguments to long options are mandatory for short options as well.

-b,  --brief

reports (prints to stdout) only a few important fields from the response.

-c,  --changecount

reports (prints to stdout) the value of the expander change count field from the response. The value is printed in decimal and is in the range 0 to 65535. Only expanders compliant with SAS-1.1 (and earlier) should yield 0. [Expanders compliant with SAS-2 (and later) should set the "long response" bit in the REPORT GENERAL response to 1.]

-h,  --help

output the usage message then exit.

-H,  --hex

output the response (less the CRC field) in hexadecimal.

-I,  --interface=PARAMS

interface specific parameters. In this case "interface" refers to the path through the operating system to the SMP initiator. See the smp_utils man page for more information.

-r,  --raw

send the response (less the CRC field) to stdout in binary. All error messages are sent to stderr.

-s,  --sa=SAS_ADDR

specifies the SAS address of the SMP target device. Typically this is an expander. This option may not be needed if the SMP_DEVICE has the target's SAS address within it. The SAS_ADDR is in decimal but most SAS addresses are shown in hexadecimal. To give a number in hexadecimal either prefix it with '0x' or put a trailing 'h' on it.

-v,  --verbose

increase the verbosity of the output. Can be used multiple times

-V,  --version

print the version string and then exit.

-z,  --zero

zero the Allocated Response Length field in the request. This is required for strict SAS-1.1 compliance. However this option should not be given in SAS-2 and later; if it is given an abridged response may result.


See "Examples" section in http://sg.danny.cz/sg/smp_utils.html

Conforming to

The SMP REPORT GENERAL function was introduced in SAS-1, with small additions in SAS-1.1 . There have been a large number of additions in SAS-2 .


Written by Douglas Gilbert.

Reporting Bugs

Report bugs to <dgilbert at interlog dot com>.

See Also

smp_utils, smp_discover(smp_utils)


May 2011 smp_utils-0.96