mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-23 21:35:29 +03:00
186 lines
4.6 KiB
Bash
Executable File
186 lines
4.6 KiB
Bash
Executable File
#!/bin/bash
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# we use some bash-isms (getopts?)
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# lvm_dump: This script is used to collect pertinent information for
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# the debugging of lvm issues.
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# following external commands are used throughout the script
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# which, echo and test are internal in bash at least
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MKDIR=mkdir # need -p
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TAR=tar # need czf
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RM=rm # need -rf
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CP=cp
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TAIL=tail # we need -n
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LS=ls # need -la
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PS=ps # need alx
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SED=sed
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DD=dd
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CUT=cut
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DATE=date
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BASENAME=basename
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# user may override lvm and dmsetup location by setting LVM_BINARY
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# and DMSETUP_BINARY respectively
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LVM=${LVM_BINARY-lvm}
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DMSETUP=${DMSETUP_BINARY-dmsetup}
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die() {
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code=$1; shift
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echo "$@" 1>&2
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exit $code
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}
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# which should error out if the binary is not executable, although i
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# am not sure we can rely on this
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which $LVM >& /dev/null || die 2 "Fatal: could not find lvm binary '$LVM'"
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test -x `which $LVM` || die 2 "Fatal: lvm binary '$LVM' not executable"
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which $DMSETUP >& /dev/null || die 2 "Fatal: could not find dmsetup binary '$DMSETUP'"
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test -x `which $DMSETUP` || die 2 "Fatal: dmsetup binary '$DMSETUP' not executable"
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function usage {
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echo "$0 [options]"
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echo " -h print this message"
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echo " -a advanced collection - warning: if lvm is already hung,"
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echo " then this script may hang as well if -a is used"
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echo " -m gather LVM metadata from the PVs"
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echo " -d <directory> dump into a directory instead of tarball"
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echo " -c if running clvmd, gather cluster data as well"
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echo ""
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exit 1
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}
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advanced=0
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clustered=0
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metadata=0
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while getopts :acd:hm opt; do
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case $opt in
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s) sysreport=1 ;;
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a) advanced=1 ;;
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c) clustered=1 ;;
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d) userdir=$OPTARG ;;
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h) usage ;;
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m) metadata=1 ;;
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:) echo "$0: $OPTARG requires a value:"; usage ;;
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\?) echo "$0: unknown option $OPTARG"; usage ;;
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*) usage ;;
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esac
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done
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NOW=`$DATE -u +%G%m%d%k%M%S | /usr/bin/tr -d ' '`
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if test -n "$userdir"; then
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dir="$userdir"
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else
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dirbase="lvmdump-$HOSTNAME-$NOW"
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dir="$HOME/$dirbase"
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fi
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test -e $dir && die 3 "Fatal: $dir already exists"
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$MKDIR -p $dir || die 4 "Fatal: could not create $dir"
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log="$dir/lvmdump.log"
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myecho() {
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echo "$@"
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echo "$@" >> $log
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}
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log() {
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echo "$@" >> $log
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eval "$@"
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}
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echo " "
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myecho "Creating dump directory: $dir"
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echo " "
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if (( $advanced )); then
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myecho "Gathering LVM volume info..."
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myecho " vgscan..."
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log "$LVM vgscan -vvvv > $dir/vgscan 2>&1"
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myecho " pvscan..."
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log "$LVM pvscan -v >> $dir/pvscan 2>> $log"
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myecho " lvs..."
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log "$LVM lvs -a -o +devices >> $dir/lvs 2>> $log"
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myecho " pvs..."
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log "$LVM pvs -a -v > $dir/pvs 2>> $log"
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echo " vgs..."
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log "$LVM vgs -v > $dir/vgs 2>> $log"
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fi
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if (( $clustered )); then
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myecho "Gathering cluster info..."
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echo "STATUS: " > $dir/cluster_info
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echo "----------------------------------" >> $dir/cluster_info
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log "cman_tool status >> $dir/cluster_info 2>> $log"
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echo " " >> $dir/lvm_info
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echo "SERVICES: " >> $dir/cluster_info
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echo "----------------------------------" >> $dir/cluster_info
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log "cman_tool services >> $dir/cluster_info 2>> $log"
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echo " " >> $dir/lvm_info
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fi
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myecho "Gathering LVM & device-mapper version info..."
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echo "LVM VERSION:" > $dir/versions
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$LVM lvs --version >> $dir/versions 2>> $log
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echo "DEVICE MAPPER VERSION:" >> $dir/versions
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$DMSETUP --version >> $dir/versions 2>> $log
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myecho "Gathering dmsetup info..."
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log "$DMSETUP info -c > $dir/dmsetup_info 2>> $log"
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log "$DMSETUP table > $dir/dmsetup_table 2>> $log"
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log "$DMSETUP status > $dir/dmsetup_status 2>> $log"
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myecho "Gathering process info..."
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log "$PS alx > $dir/ps_info 2>> $log"
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myecho "Gathering console messages..."
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log "$TAIL -n 75 /var/log/messages > $dir/messages 2>> $log"
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myecho "Gathering /etc/lvm info..."
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log "$CP -a /etc/lvm $dir/lvm 2>> $log"
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myecho "Gathering /dev listing..."
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log "$LS -la /dev > $dir/dev_listing 2>> $log"
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if (( $metadata )); then
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myecho "Gathering LVM metadata from Physical Volumes..."
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log "$MKDIR -p $dir/metadata"
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pvs="$($LVM pvs --separator , --noheadings --units s --nosuffix -o \
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name,pe_start 2>> $log | $SED -e 's/^ *//')"
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for line in "$pvs"
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do
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test -z "$line" && continue
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pv="$(echo $line | $CUT -d, -f1)"
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pe_start="$(echo $line | $CUT -d, -f2)"
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name="$($BASENAME $pv)"
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myecho " $pv"
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log "$DD if=$pv of=$dir/metadata/$name bs=512 count=$pe_start 2>> $log"
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done
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fi
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if test -z "$userdir"; then
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lvm_dump="$dirbase.tgz"
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myecho "Creating report tarball in $HOME/$lvm_dump..."
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cd $HOME
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$TAR czf $lvm_dump $dirbase 2>/dev/null
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$RM -rf $dir
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fi
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if test "$UID" != "0" && test "$EUID" != "0"; then
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myecho
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myecho "WARNING! Running as non-privileged user, dump is likely incomplete!"
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myecho
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fi
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exit 0
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