.TH SG_TURS "8" "June 2006" "sg3_utils-1.21" SG3_UTILS .SH NAME sg_turs \- executes a user specified number of TEST UNIT READY commands on the given device .SH SYNOPSIS .B sg_turs [\fI-n=\fR] [\fI-p\fR] [\fI-t\fR] [\fI-v\fR] [\fI-V\fR] <\fIscsi_device\fR> .SH DESCRIPTION .\" Add any additional description here .PP sg_turs sends a number of TEST UNIT READY commands to a given SCSI device. Useful for timing the per command overhead. Note that TEST UNIT READY has no associated data, just a 6 byte command and a returned SCSI status value. .TP -n= performs TEST UNIT READY "" times. If not given defaults to 1. These suffix multipliers are permitted: c C *1; w W *2; b B *512; k K KiB *1,024; KB *1,000; m M MiB *1,048,576; MB *1,000,000; g G GiB *1,073,741,824; and GB *1,000,000,000 . Also a suffix of the form "x" multiplies the leading number by . Alternatively a hex number may be given, prefixed by either '0x' or '0X' (or has a trailing 'h' or 'H'). .TP -p show progress indication (a percentage) if available. If greater than one waits 30 seconds before subsequent checks. Exits when is reached or there is no more progress indication. Ignores '-t' option. .TP -t after completing the requested number of TEST UNIT READY commands, outputs the total duration and the average number of commands executed per second. .TP -v increase level of verbosity: print out SCSI commands in hex prior to sending them to the device. '-vv' and '-vvv' are also accepted yielding greater verbosity. .TP -V print out version string then exit. .SH EXIT STATUS The exit status of sg_verify is 0 when it is successful. Otherwise see the sg3_utils(8) man page. .SH AUTHORS Written by D. Gilbert .SH COPYRIGHT Copyright \(co 2000-2005 Douglas Gilbert .br This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.