initial sources

src/Makefile

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+#============================================================================
+# Title       : Makefile
+# Description : Makefile for asmdisks
+# Author      : Bart Sjerps <bart@outrun.nl>
+# License     : GPLv3+
+# ---------------------------------------------------------------------------
+
+prefix     = /usr/local
+bindir     = $(prefix)/bin
+mandir     = $(prefix)/share/man
+docdir     = $(prefix)/share/doc
+
+sysconfdir = /etc
+
+all:
+
+install:
+	install -d 0755 $(bindir)
+	install -d 0755 $(sysconfdir)/bash_completion.d
+	install -d 0755 $(mandir)/man1
+	install -d 0755 $(docdir)
+	install -m 0755 bin/asm bin/asmstat bin/diskheader bin/wipedisk $(bindir)
+	install -m 0644 bin/asm.bash $(sysconfdir)/bash_completion.d
+	install -m 0644 man/* $(mandir)/man1/
+	install -m 0444 doc/* $(docdir)/
+
+.PHONY: install
+

src/bin/asm.bash

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+#============================================================================
+# Title              : asm.bash
+# Description        : bash_completion file for asm script
+# Author             : Bart Sjerps <bart@outrun.nl>
+# License            : GPLv3+
+# ---------------------------------------------------------------------------
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License at <http://www.gnu.org/licenses/> for
+# more details.
+# ---------------------------------------------------------------------------
+# Revision history:
+# 2016-10-20 : Added DSSD support
+# 2015-03-10 : Updated for Powerpath support
+# 2014-11-06 : Updated for new asm options
+# 2014-10-24 : Created
+# ---------------------------------------------------------------------------
+_asm() {
+  local cur prev opts cmd
+  lsvols() { awk '$1!="#" && NF==3 {print $1}' /etc/asmtab 2>/dev/null ; }
+  lsdevs() {
+    find /dev/mapper -type l 2>/dev/null
+    find /dev -maxdepth 1 -type b -name "sd[b-z]" -o -name "sd[a-z][a-z]" -o -name "emcpower*" -o -name "dssd[0-9][0-9][0-9][0-9]"
+  }
+  COMPREPLY=()
+  cur="${COMP_WORDS[COMP_CWORD]}"
+  prev="${COMP_WORDS[COMP_CWORD-1]}"
+  cmd="${COMP_WORDS[1]}"
+  (( $COMP_CWORD > 3)) && return 0
+  if (( $COMP_CWORD == 2 )); then
+    case $cmd in
+      createdisk) ;;
+      deletedisk|renamedisk) COMPREPLY=($(compgen -W "$(lsvols)" -- ${cur})) ; return 0 ;;
+      *) return 0 ;;
+    esac
+  fi
+  if (( $COMP_CWORD == 3 )); then
+    case $cmd in
+      createdisk) COMPREPLY=($(compgen -W "$(lsdevs)" -- ${cur})) ; return 0 ;;
+      *) return 0 ;;
+    esac
+  fi
+  opts="createdisk deletedisk renamedisk rescan scandisks listdisks disks list multi import"
+  case ${prev} in
+    createdisk) return 0 ;;
+    *) ;;
+  esac
+  COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
+  return 0
+}
+complete -F _asm asm

src/bin/asmstat

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+#!/bin/bash
+#============================================================================
+# Title              : asmstat
+# Description        : Wrapper for iostat that maps ASM devices
+# Author             : Bart Sjerps <bart@outrun.nl>
+# License            : GPLv3+
+# ---------------------------------------------------------------------------
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License at <http://www.gnu.org/licenses/> for
+# more details.
+# ---------------------------------------------------------------------------
+# Revision history:
+# 2016-10-20 : Minor update
+# 2015-03-08 : Fixed alignment
+# 2014-10-24 : Updated template
+# 2014-05-02 : Created
+# ---------------------------------------------------------------------------
+# Additional info:
+# Man page:          : Yes
+# Bash completion    : No
+#============================================================================
+# Configuration parameters:
+# ---------------------------------------------------------------------------
+
+#============================================================================
+# Initialization - Logging - Etc.
+# ---------------------------------------------------------------------------
+# Filter device-mapper and non-disk devices
+sedstring="/dm-/d;/scd/d;"
+#============================================================================
+# Usage:
+# ---------------------------------------------------------------------------
+usage() {
+  cat <<- EOF
+	$(basename $0) [ options ]
+	
+	A wrapper for iostat that translates /dev/sdXX devices into their
+	ASM device names. Example: asmstat -xm 2
+	Any options will be directly passed on to iostat.
+	See man asmstat(1) and asm(1) for more info.
+	
+	EOF
+}
+#============================================================================
+# Main
+# ---------------------------------------------------------------------------
+# Normal getopts doesn't work as we need to pass everything to iostat...
+case $1 in
+  -h)	usage ; exit 0 ;;
+  -?)   usage ; exit 0 ;;
+esac
+
+if ! ls /dev/oracleasm/* &>/dev/null ; then
+  iostat $@
+else
+  for asmdev in /dev/oracleasm/*
+  do
+    maj=$(echo "ibase=16; $(stat -Lc '%t' ${asmdev}|tr 'a-z' 'A-Z')"|bc)
+    min=$(echo "ibase=16; $(stat -Lc '%T' ${asmdev}|tr 'a-z' 'A-Z')"|bc)
+    # get location of dev
+    # old method:
+    # dev=$(egrep -l "${maj}:${min}$" /sys/devices/{*,*/*,*/*/*}/host*/{*/*,*/*/*}/block/*/dev 2>/dev/null | head -1)
+    # better method (!?):
+    dev=$(readlink $(find /sys/dev/block -name "${maj}:${min}" | sed -n "1p" )|sed "s/.*\///")
+    [[ "$dev" == "" ]] && continue
+    disk=$(echo $dev | awk -F'/' '{print $(NF-1)}')
+    asmvol=${asmdev##*/}
+    # get size of largest string
+    len=${#disk} ; (( ${#asmvol} > len)) && len=${#asmvol}
+    # align asm volume name to 6 chars
+    # translate /dev/sdX into /dev/oracleasm/<vol>
+    sedstring="${sedstring}$(printf "s/%-${len}s/%-${len}s/;\n" $disk $asmvol)"
+  done
+  # run iostat command with translation
+  iostat $@ | sed -u "$sedstring"
+fi
+

src/bin/diskheader

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+#!/bin/bash
+#============================================================================
+# Title       : diskheader
+# Description : Shows hexdump of the first 1k block of a disk
+# Author      : Bart Sjerps <bart@outrun.nl>
+# License     : GPLv3+
+# ---------------------------------------------------------------------------
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License at <http://www.gnu.org/licenses/> for
+# more details.
+# ---------------------------------------------------------------------------
+# Revision history:
+# 2017-02-01 : First version
+#============================================================================
+# Configuration parameters:
+# ---------------------------------------------------------------------------
+#============================================================================
+# Initialization - Logging - Etc.
+# ---------------------------------------------------------------------------
+die() { echo "$(basename $0): [die] $@" >&2 ; exit 10 ; }
+
+test -x /usr/bin/xxd || die "Requires xxd (vim-common)"
+
+#============================================================================
+# Usage:
+# ---------------------------------------------------------------------------
+usage() {
+  cat <<- EOF
+	$(basename $0) [-c blocks] [-w width] <disk>
+	
+	Shows a hexdump of the header of the given disk.
+	
+	  -c blocks - show <blocks> (default 1 block of 1024 bytes)
+	  -w width - Hexdump with <width> (default 32)
+	
+	EOF
+}
+#============================================================================
+# Functions
+# ---------------------------------------------------------------------------
+
+
+#============================================================================
+# Main section - parsing options etc
+# ---------------------------------------------------------------------------
+while getopts ":hb:c:w:" OPT; do
+  case "$OPT" in
+      b) blksz=${OPTARG} ;;
+      c) count=${OPTARG} ;;
+      w) width=${OPTARG} ;;
+   \?|h) usage ; exit 0 ;;
+  esac
+done
+shift $(expr $OPTIND - 1)
+
+test -z "$1" && usage && exit
+test -b "$1" || die "$1 is not a block device"
+
+dd if="$1" bs=${blksz:-1024} count=${count:-1} status=none | xxd -c ${width:-32}

src/bin/wipedisk

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+#!/bin/bash
+#============================================================================
+# Title              : wipedisk
+# Description        : Wipes first 1MB of a disk and makes backup in /tmp
+# Author             : Bart Sjerps <bart@outrun.nl>
+# License            : GPLv3+
+# ---------------------------------------------------------------------------
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License at <http://www.gnu.org/licenses/> for
+# more details.
+# ---------------------------------------------------------------------------
+# Revision history:
+# 2016-10-20 : Update
+# 2014-10-27 : Bugfix, added nowait
+# 2014-10-22 : Created
+# ---------------------------------------------------------------------------
+# Additional info:
+# Man page:          : Yes
+# Bash completion    : No
+#============================================================================
+# Configuration parameters:
+# ---------------------------------------------------------------------------
+
+#============================================================================
+# Initialization - Logging - Etc.
+# ---------------------------------------------------------------------------
+DATE=$(date +'%Y-%m-%d') # $(date +"%F-%H:%M:%S")
+#============================================================================
+# Usage:
+# ---------------------------------------------------------------------------
+usage() {
+  cat <<- EOF
+	$(basename $0) -f [-n] <device>
+	Zeroes out the first 1 MiB of the give device (to clear all kinds of disk signatures).
+	The "-f" option is required as a safeguard.
+	-n - nowait (skips 5 seconds safety delay)
+	In case of emergency you can restore this first megabyte from backup in /tmp.
+	Run the manpage for mor info (man $(basename $0))
+	EOF
+}
+#============================================================================
+# Functions
+# ---------------------------------------------------------------------------
+#============================================================================
+# Main section - parsing options etc
+# ---------------------------------------------------------------------------
+while getopts ":hfn" OPT; do
+  case "$OPT" in
+    f)  FORCE=Y ;;
+    n)  NOWAIT=Y ;;
+    h)	usage >&2 ; exit 1 ;;
+   \?)	usage >&2 ; exit 1 ;;
+  esac
+done
+shift $(expr $OPTIND - 1)
+test $# -lt 1 && { usage ; exit 10 ; }
+
+if [ "$FORCE" == "Y" ]; then
+  DISK=${1:-nodisk}
+  if [ ! -b $DISK ]; then
+    echo "$DISK not found"
+    exit 1
+  fi
+  BKUP=$(echo $DISK | tr '/' '_')
+  echo "Backing up 1st MB of $DISK in /tmp/$BKUP, restore with dd if=/tmp/$BKUP of=/dev/$DISK bs=1M count=1"
+  dd if=$1 of=/tmp/backup_$BKUP bs=1M count=1
+  echo "Wiping 1st mb of disk $DISK"
+  [[ -z $NOWAIT ]] && for i in {5..1}; do echo $i ; sleep 1 ; done
+  dd if=/dev/zero of=$DISK bs=1M count=1
+fi