smp_rep_phy_err_log man page
smp_rep_phy_err_log — invoke REPORT PHY ERROR LOG SMP function
smp_rep_phy_err_log [--help] [--hex] [--interface=PARAMS] [--phy=ID] [--raw] [--sa=SAS_ADDR] [--verbose] [--version] [--zero] SMP_DEVICE[,N]
Sends a SAS Serial Management Protocol (SMP) REPORT PHY ERROR LOG 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.
- -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.
- -p, --phy=ID
phy identifier. ID is a value between 0 and 254. Default is 0.
- -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 option also zeros the Request 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.
Similar information is maintained for SAS SSP target phys (e.g. on a SAS disk). It can be obtained from the Protocol Specific Port log page with the sg_logs utility.
Similar information may be obtained for SAS initiator phys (e.g. on a SAS HBA). As an example in Linux 2.6.28 error information can be found in this directory /sys/class/sas_phy/phy-4:0 (for the phy 0 in SCSI/SAS host 4).
Similar information may be obtained for SATA device phys (e.g. on a SATA disk). If there is a SAT layer between OS and the SATA device then the sg_sat_phy_event utility can fetch the information.
The SMP REPORT PHY ERROR LOG function was introduced in SAS-1 . The "Expander change count" field was added in SAS-2 .
Written by Douglas Gilbert.
Report bugs to <dgilbert at interlog dot com>.
Copyright © 2006-2011 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
smp_utils, smp_phy_control(smp_utils), sg_logs(sg3_utils), sg_sat_phy_event(sg3_utils)