Find the rootvg Disk AIX Server

The script will do:

• Collects all disks with sizes
• Collects rootvg disks with sizes
• Finds the target disk from rootvg list
• Gets its size
• Finds all disks with the same size
• Outputs those disks
• Finally, lists those disks info with lspv

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#!/bin/ksh

# Temp files

disk_size1=/tmp/disk_size1

disk_size2=/tmp/disk_size2

# Clear temp files if they exist

> "$disk_size1"

> "$disk_size2"

# Collect all disks sizes

for pv1 in $(lspv | awk '{print $1}')

do

  echo "Disk Size: $pv1 $(bootinfo -s $pv1)" >> "$disk_size1"

done

# Collect rootvg disks sizes

for pv2 in $(lspv | grep rootvg | awk '{print $1}')

do

  echo "Disk Size: $pv2 $(bootinfo -s $pv2)" >> "$disk_size2"

done

# Get the target disk from /tmp/disk_size2

target_disk=$(awk '{print $3; exit}' "$disk_size2")

if [ -z "$target_disk" ]; then

  echo "No target disk found in $disk_size2"

  exit 1

fi

# Get the size of the target disk from /tmp/disk_size1

target_size=$(awk -v disk="$target_disk" '$3 == disk {print $4}' "$disk_size1")

if [ -z "$target_size" ]; then

  echo "Disk $target_disk not found in $disk_size1"

  exit 1

fi

echo "Target disk: $target_disk"

echo "Target disk size: $target_size"

echo "-------------------------------------------------------------------------------------------------------------"

# Find all disks with the same size and save to /tmp/disk_size2 (overwrite)

awk -v size="$target_size" '$4 == size {print "Disk Size: " $3 " " $4}' "$disk_size1" > "$disk_size2"

echo "Root VG DISK are................................................................................................................."

cat "$disk_size2"

echo "-------------------------------------------------------------------------------------------------------------"

echo "Detailed lspv info for matching disks:"

for i in $(awk '{print $3}' "$disk_size2")

do

  lspv | grep "$i"

done

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1. Add the above script contents
# vi remove_dead_luns.ksh
2. Make it executable
# chmod +x remove_dead_luns.ksh
3. Run script
# ./remove_dead_luns.ksh
or
# sh remove_dead_luns.ksh

Script Output:

Target disk: hdisk2

Target disk size: 46080

Root VG DISK are.......................................

Disk Size: hdisk1 46080

Disk Size: hdisk2 46080

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Detailed lspv info for matching disks:

hdisk1         00c2d8d8c55583fa                    None

hdisk2         00c2d8d823db38fb                    rootvg          active