storcli-vd2dev

#!/bin/sh

set -e

export PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
export LC_ALL='C'

SCRIPT_NAME="${0##*/}"
VD="$1"

if ! printf '%s\n' "$VD" | grep -qE '^/c[0-9]+/v[0-9]+$'
then
    printf 'Sorry, an argument is required and it must have this form:\n' >&2
    printf '\n'                                                           >&2
    printf '    %s /c<x>/v<y>\n' "$SCRIPT_NAME"                           >&2
    printf '\n'                                                           >&2
    printf 'where <x> and <y> are integers.\n'                            >&2
    exit 1
fi

scsi_id=$(storcli "$VD" show all | gawk '/^SCSI NAA Id =/ {print $5}')

if ! printf '%s\n' "$scsi_id" | grep -qE '^[a-f0-9]+$'
then
    printf 'Sorry, SCSI ID not found for the virtual drive %s.\n' "$VD" >&2
    exit 1
fi

symlink="/dev/disk/by-id/wwn-0x${scsi_id}"

if [ -L "$symlink" ]
then
    readlink -f "/dev/disk/by-id/wwn-0x${scsi_id}"
else
    printf 'Sorry, no device which matches with the virtual drive %s.\n' "$VD" >&2
    exit 1
fi