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Bart Sjerps
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‎SOURCES/testfile‎

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‎src/Makefile‎

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

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‎src/bin/asm.bash‎

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

‎src/bin/asmstat‎

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

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

‎src/bin/wipedisk‎

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

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