The device(s) used must meet one of two tests:
SCSI device:
Must appear in the output of 'sg_map'
+ (make sure the kernel module "sg" is loaded)
Raw device:
Must appear in the output of 'raw -qa'
+
+ If you need to create raw devices in order to use this tool, note that
+ raw device 0 can not be used due to a bug in certain versions of the
+ "raw" utility (including that shipped with RHEL4U4.)
+
You may not mix raw and SCSI devices in the test specification.
and where it should keep its working files. Customisation variables are
described clearly at the start of the script.
+e.g.: scsidevs=/dev/sda size=128 crghi=16 thrhi=32 ./sgpdd-survey
+
When the script runs, it creates a number of working files and a pair of
result files. All files start with the prefix given by ${rslt}.
phased by seeks at the given record size.
-The included script, parse.pl will process output files and create .csv files fo spreadsheet import
+The included script "parse.pl" will process output files and create
+.csv files for spreadsheet import
+
+The "plot-sgpdd" script plots the results directly using gnuplot.