Gather storage info from a Linux server

storage_info.sh

#!/bin/bash

# To run with redirect to a file:
# bash ./storage_info.sh &> discover_$(hostname).txt

print_h1(){
  printf '\n# %s\n\n' "$@"
}
print_h2(){
  printf '\n## %s\n\n' "$@"
}
print_h3(){
  printf '\n### %s\n\n' "$@"
}

print_h1 "$(hostname)"

print_h2 "Current mounts (findmnt)"
print_h3 "Common Filesystem Mounts"
findmnt -t ext3,ext4,xfs,oracleasmfs,nfs
print_h3 "All mounts"
findmnt

print_h2 "LVM State"
print_h3 "pvs"; sudo pvs
print_h3 "vgs"; sudo vgs
print_h3 "lvs"; sudo lvs

print_h2 "Block devices"
print_h3 "blkid"; blkid
print_h3 "lsblk"; lsblk

print_h2 "/etc/fstab"
cat /etc/fstab

print_h2 "Grub configuration"
print_h3 "/boot/grub/device.map"
cat /boot/grub/device.map

print_h3 "/boot/grub/grub.conf"
sudo cat /boot/grub/grub.conf

print_h2 "PowerPath devices (powermt)"
if [ -x "$(command -v powermt)" ]; then
  sudo powermt display dev=all
else
  echo "powermt not found"
fi

print_h2 "EMC LUN Partition tables"
if [ -x "$(command -v powermt)" ]; then
  dev_list=$(sudo powermt display dev=all | grep 'Pseudo name' | awk -F '=' '{print $2}')
  for x in $dev_list; do
    sudo parted /dev/$x print
  done
else
  echo "powermt not found"
fi

print_h2 "DM-Multipath devices"
if [ -x "$(command -v multipath)" ]; then
  sudo multipath -l
else
  echo "multipath not found"
fi

print_h2 "Oracle ASM disk mappings"
if [ -x "$(command -v oracleasm)" ]; then
  asmdisks=$(sudo oracleasm listdisks)
  if [[ ! -z $asmdisks ]]; then
    for asmdisk in $asmdisks; do
      major="$(sudo oracleasm querydisk -d $asmdisk | awk -F[ '{ print $2 }'| awk -F] '{ print $1 }' | awk -F, '{ print $1 }')"
      minor="$(sudo oracleasm querydisk -d $asmdisk | awk -F[ '{ print $2 }'| awk -F] '{ print $1 }' | awk -F, '{ print $2 }')"
      disk_name=$(ls -l /dev/* | grep ^b | grep -E "$major,\s+$minor\s" | awk '{ print $10 }')
      printf "ASM disk: %10s = %-20s\n" "$asmdisk" "$disk_name"
    done
  fi
else
  echo "oracleasm not found"
fi

print_h2 "Storage related info from lshw"
if [ -x "$(command -v lshw)" ]; then
  print_h3 "lshw (short)"; sudo lshw -C storage,disk,volume -short
  print_h3 "lshw (json)"; sudo lshw -C storage,disk,volume -json
else
  echo "lshw not found"
fi