-.TH IOSTAT 1 "NOVEMBER 2014" Linux "Linux User's Manual" -*- nroff -*-
+.TH IOSTAT 1 "JULY 2015" Linux "Linux User's Manual" -*- nroff -*-
.SH NAME
iostat \- Report Central Processing Unit (CPU) statistics and input/output
statistics for devices and partitions.
.ie 'yes'@WITH_DEBUG@' \{
.B iostat [ -c ] [ -d ] [ -h ] [ -k | -m ] [ -N ] [ -t ] [ -V ] [ -x ] [ -y ] [ -z ]
.B [ -j { ID | LABEL | PATH | UUID | ... } ]
-.B [ [ -T ] -g
+.B [ [ -H ] -g
.I group_name
.B ] [ -p [
.I device
.el \{
.B iostat [ -c ] [ -d ] [ -h ] [ -k | -m ] [ -N ] [ -t ] [ -V ] [ -x ] [ -y ] [ -z ]
.B [ -j { ID | LABEL | PATH | UUID | ... } ]
-.B [ [ -T ] -g
+.B [ [ -H ] -g
.I group_name
.B ] [ -p [
.I device
.IR /dev/disk .
Optionally, multiple devices can be specified in the chosen persistent name type.
Because persistent device names are usually long, option
+.IP -H
+This option must be used with option -g and indicates that only global
+statistics for the group are to be displayed, and not statistics for
+individual devices in the group.
.B -h
is enabled implicitly with this option.
.IP -k
.B -j
is defined before this option, devices entered on the command line can be
specified with the chosen persistent name type.
-.IP -T
-This option must be used with option -g and indicates that only global
-statistics for the group are to be displayed, and not statistics for
-individual devices in the group.
.IP -t
Print the time for each report displayed. The timestamp format may depend
on the value of the S_TIME_FORMAT environment variable (see below).