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#!/bin/bash
###################################################################
#
# Fetch READ CAPACITY information for the given SCSI device(s).
#
# This script assumes the sg3_utils package is installed.
#
##################################################################
verbose=""
brief=""
long_opt=""
usage()
{
echo "Usage: scsi_readcap [-b] [-h] [-l] [-v] <device>+"
echo " where:"
echo " -b, --brief output brief capacity data"
echo " -h, --help print usage message"
echo " -l, --long send longer SCSI READ CAPACITY (16) cdb"
echo " -v, --verbose more verbose output"
echo ""
echo "Use SCSI READ CAPACITY command to fetch the size of each <device>"
}
opt="$1"
while test ! -z "$opt" -a -z "${opt##-*}"; do
opt=${opt#-}
case "$opt" in
b|-brief) brief="-b" ;;
h|-help) usage ; exit 0 ;;
l|-long) long_opt="--16" ;;
v|-verbose) verbose="-v" ;;
vv) verbose="-vv" ;;
vvv) verbose="-vvv" ;;
*) echo "Unknown option: -$opt " ; exit 1 ;;
esac
shift
opt="$1"
done
if [ $# -lt 1 ]
then
usage
exit 1
fi
for i
do
if [ $brief ] ; then
sg_readcap $brief $long_opt $verbose $i 2> /dev/null
else
echo "sg_readcap $brief $long_opt $verbose $i"
sg_readcap $brief $long_opt $verbose $i
fi
done