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#!/bin/sh

# Script to create device nodes for SMART array controllers

# Usage:

#       mkdev.ida [num controllers] [num log volumes] [num partitions]

#

# With no arguments, the script assumes 1 controller, 16 logical volumes,

# and 16 partitions/volume, which is adequate for most configurations.

#

# If you had 5 controllers and were planning on no more than 4 logical volumes

# each, using a maximum of 8 partitions per volume, you could say:

#

# mkdev.ida 5 4 8

#

# Of course, this has no real benefit over "mkdev.ida 5" except that it

# doesn't create so many device nodes in /dev/ida.

NR_CTLR=${1-1}

NR_VOL=${2-16}

NR_PART=${3-16}

if [ ! -d /dev/ida ]; then

        mkdir -p /dev/ida

fi

C=0; while [ $C -lt $NR_CTLR ]; do

        MAJ=`expr $C + 72`

        D=0; while [ $D -lt $NR_VOL ]; do

                P=0; while [ $P -lt $NR_PART ]; do

                        MIN=`expr $D \* 16 + $P`

                        if [ $P -eq 0 ]; then

                                mknod /dev/ida/c${C}d${D} b $MAJ $MIN

                        else

                                mknod /dev/ida/c${C}d${D}p${P} b $MAJ $MIN

                        fi

                        P=`expr $P + 1`

                done

                D=`expr $D + 1`

        done

        C=`expr $C + 1`

done