mar 18 2011
Obtenir une vision synthétique du stockage sous Linux avec une baie XP (HP).
Un script perl qui combine les sorties de différents outils (xpinfo, multipath, mount) pour produire une vue complète du stockage disque.
Ce script fonctionne sur une machine Linux (RHEL5.5) avec une baie XP (HP).
Note : Ce script fonctionne mais peut probablement être grandement amélioré
#!/usr/bin/perl
# --------------------------------------------------------------------------------
# Script : map.pl
# Revision : 1.1
# Author : Rene Ribaud
# Description :
# --------------------------------------------------------------------------------
use strict;
use warnings;
#use diagnostics; # Only use it for debugging purpose.
# --------------------------------------------------------------------------------
# Global variables
# --------------------------------------------------------------------------------
# Time
my ($sec,$min,$hour,$day,$month,$year,$wday,$yday,$isdst);
my $timestamp;
# Data
# Define a full structure
#my %mpaths =(
# name =>{
# size => undef,
# uuid => undef,
# dm => undef,
# fs => undef,
# disk => {
# diskname => {
# port => undef,
# lunid => undef,
# sfnum => undef,
# ldev => undef,
# type => undef,
# xp => undef,
# },
# },
# },
# );
my %mpaths;
# --------------------------------------------------------------------------------
# Functions
# --------------------------------------------------------------------------------
# --------------------------------------------------------------------------------
# Main
# --------------------------------------------------------------------------------
# Get variable from command line
# Get timestamp
($sec,$min,$hour,$day,$month,$year,$wday,$yday,$isdst)=localtime();
$timestamp=sprintf("%4d%02d%02d-%02d:%02d:%02d",($year+1900),($month+1),$day,$hour,$min,$sec);
# Slurp tools data into arrays in memory
my @xpinfo=`xpinfo -i`;
my @multipath=`multipath -ll`;
my @mounts=`mount`;
for (my $line=0; $line<scalar(@multipath); $line++){
if ($multipath[$line] =~ /^mpath/){ # Check & parse line : mpath23 (360060e8015276a000001276a0000d0fc) dm-8 HP,OPEN-V
(my $mpath, my $uuid, my $dm, my $type) = split ('\s+',$multipath[$line]);
$uuid=~s/\(//g;
$uuid=~s/\)//g;
$mpaths{$mpath}->{"dm"}=$dm;
$mpaths{$mpath}->{"uuid"}=$uuid;
$mpaths{$mpath}->{"type"}=$type;
# Crosscheck into mount to get the fs name
# /dev/mapper/mpath14 on /oradata/crs/voting1 type ocfs2 (rw,_netdev,datavolume,nointr,heartbeat=local)
my $fs;
my @mount = grep(/$mpath\s/,@mounts);
if (scalar(@mount==0)){
$fs="N/A";
}
else
{
(undef,undef,$fs) = split('\s+',$mount[0]);
}
$mpaths{$mpath}->{"fs"}=$fs;
# Next line to parse : [size=36G][features=1 queue_if_no_path][hwhandler=0][rw]
$line++;
if ($multipath[$line] =~ /^\[size=/){
(my $size) = $multipath[$line] =~ /\[size=([0-9]+\w)/;
$mpaths{$mpath}->{"size"}=$size;
# Next line to parse : \_ round-robin 0 [prio=0][active]
$line++;
if ($multipath[$line] =~ /^\\_/){
# Next line to parse : \_ 0:0:4:13 sdad 65:208 [active][ready]
$line++;
if ($multipath[$line] =~ /^ \\_/){
my $no_more_device=0;
do{
(undef,undef,undef,my $disk, my $sf, undef) = split ('\s+',$multipath[$line]);
$mpaths{$mpath}->{"disk"}->{$disk}->{"sfnum"}=$sf;
# Crosscheck into xpinfo
my @device = grep(/$disk\s/,@xpinfo);
# Handle the case where device was not unmapped correctly
# Unmapped from XP and not remoove from multipath.
if (scalar(@device) == 0){
$mpaths{$mpath}->{"disk"}->{$disk}->{"port"} = "Not found";
$mpaths{$mpath}->{"disk"}->{$disk}->{"lunid"}= "N/A";
$mpaths{$mpath}->{"disk"}->{$disk}->{"ldev"}= "N/A";
$mpaths{$mpath}->{"disk"}->{$disk}->{"type"}= "N/A";
$mpaths{$mpath}->{"disk"}->{$disk}->{"xp"}= "N/A";
}
else{
#/dev/sdu 76 04 02 CL2H d0:f1 OPEN-V 00075626
(undef,undef,undef, my $lunid, my $port, my $ldev, my $type, my $xp) = split('\s+',$device[0]);
$mpaths{$mpath}->{"disk"}->{$disk}->{"port"}=$port;
$mpaths{$mpath}->{"disk"}->{$disk}->{"lunid"}=$lunid;
$mpaths{$mpath}->{"disk"}->{$disk}->{"ldev"}=$ldev;
$mpaths{$mpath}->{"disk"}->{$disk}->{"type"}=$type;
$mpaths{$mpath}->{"disk"}->{$disk}->{"xp"}=$xp;
}
if ((defined($multipath[$line+1])) && ($multipath[$line+1] =~ /^ \\_/)){
$line++;
}
else {
$no_more_device=1;
}
} while ($no_more_device==0);
}
}
}
}
}
# Print mapping
printf("%-34s %-9s %-7s %-6s %-6s %-8s %-6s %-6s %s\n","UUID","xp","type","size","dm","mapth","lunid","ldev","fs");
foreach my $mpath (sort(keys(%mpaths))){
my @first_disk=keys(%{$mpaths{$mpath}->{"disk"}});
# Check to report disk not unmapped correctly
printf("%-34s %-9s %-7s %-6s %-6s %-8s %-6s %-6s %s\n" ,$mpaths{$mpath}->{"uuid"}
,$mpaths{$mpath}->{"disk"}->{$first_disk[0]}->{"xp"}
,$mpaths{$mpath}->{"disk"}->{$first_disk[0]}->{"type"}
,$mpaths{$mpath}->{"size"}
,$mpaths{$mpath}->{"dm"}
,$mpath
,$mpaths{$mpath}->{"disk"}->{$first_disk[0]}->{"lunid"}
,$mpaths{$mpath}->{"disk"}->{$first_disk[0]}->{"ldev"}
,$mpaths{$mpath}->{"fs"}
);
my $notfoundcount=0;
foreach my $disk (keys(%{$mpaths{$mpath}->{"disk"}})){
printf("%-6s %-8s %-4s\n",$disk,$mpaths{$mpath}->{"disk"}->{$disk}->{"sfnum"},$mpaths{$mpath}->{"disk"}->{$disk}->{"port"});
if ($mpaths{$mpath}->{"disk"}->{$disk}->{"port"} eq "Not found"){
$notfoundcount++;
}
if ($notfoundcount == scalar(keys(%{$mpaths{$mpath}->{"disk"}}))){
printf("This device was found in multipath but not reported by xpinfo.\n");
printf("Multipath device was probably not flushed after unmapping the device.\n");
printf("Try to run multipath -f %s.\n",$mpath);
}
}
print "\n";
}
Output result :
UUID xp type size dm mapth lunid ldev fs
360060e8015276a000001276a0000d0f1 00075626 OPEN-V 201M dm-13 mpath14 02 d0:f1 /oradata/crs/voting1
sdai 66:32 CL1F
sdc 8:32 CL2F
sday 67:32 CL1H
sds 65:32 CL2H
360060e8015276a000001276a0000d0f2 00075626 OPEN-V 201M dm-14 mpath15 03 d0:f2 /oradata/crs/voting2
sdd 8:48 CL2F
sdaz 67:48 CL1H
sdaj 66:48 CL1F
sdt 65:48 CL2H
360060e8015276a000001276a0000d0f3 00075626 OPEN-V 201M dm-15 mpath16 04 d0:f3 /oradata/crs/voting3
sde 8:64 CL2F
sdu 65:64 CL2H
sdba 67:64 CL1H
sdak 66:64 CL1F
360060e8015276a000001276a0000d0f4 00075626 OPEN-V 201M dm-16 mpath17 05 d0:f4 /oradata/GFSTEUR1/pfile
sdal 66:80 CL1F
sdv 65:80 CL2H
sdbb 67:80 CL1H
sdf 8:80 CL2F
360060e8015276a000001276a0000d0f5 00075626 OPEN-V 36G dm-17 mpath18 06 d0:f5 /oradata/GFSTEUR1/undo
sdg 8:96 CL2F
sdbc 67:96 CL1H
sdw 65:96 CL2H
sdam 66:96 CL1F
360060e8015276a000001276a0000d0f8 00075626 OPEN-V 99G dm-18 mpath19 09 d0:f8 /oradata/RMAN/rman01
sdh 8:112 CL2F
sdan 66:112 CL1F
sdbd 67:112 CL1H
sdx 65:112 CL2H
...
