NAME¶
smp_rep_phy_event - invoke REPORT PHY EVENT SMP function
SYNOPSIS¶
smp_rep_phy_event [
--desc] [
--enumerate] [
--help]
[
--hex] [
--interface=PARAMS] [
--long] [
--phy=ID]
[
--raw] [
--sa=SAS_ADDR] [
--verbose] [
--version]
[
--zero]
SMP_DEVICE[,N]
DESCRIPTION¶
Sends a SAS Serial Management Protocol (SMP) REPORT PHY EVENT 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.
Reports zero or more phy event descriptors. Each descriptor contains a phy event
source, a phy event (i.e. a count) and a peak value detector theshold. At
least one phy event should be maintained for each phy.
OPTIONS¶
Mandatory arguments to long options are mandatory for short options as well.
- -d, --desc
- precede each phy event descriptor with a line announcing its descriptor
index number. Index numbers start at 1.
- -e, --enumerate
- enumerate all of the known Phy Event Source names, one per line preceded
by its value in hex. Ignores SMP_DEVICE if it is given; most other
options are also ignored. Exits after displaying the names.
- -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.
- -l, --long
- prefix each phy event source string with its numeric identifier in hex.
For example: "[0x1]: Invalid word count: 23"
- -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.
NOTES¶
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 EVENT function was introduced in SAS-2 .
AUTHORS¶
Written by Douglas Gilbert.
REPORTING BUGS¶
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT¶
Copyright © 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.
SEE ALSO¶
smp_utils, smp_phy_control, smp_rep_phy_event_list(smp_utils) sg_logs,
sg_sat_phy_event(sg3_utils)