├── .gitignore ├── .perlcriticrc ├── .perltidyrc ├── LICENSE ├── README.md ├── art ├── megamap-final-logo-100.png ├── megamap-final-logo-1000-white.png ├── megamap-final-logo-1000.png ├── megamap-final-logo-500-white.png ├── megamap-final-logo-500.png ├── megamap-final-logo.svg ├── server-array-final-1000-white.png ├── server-array-final-1000.png ├── server-array-final-500-white.png ├── server-array-final-500.png └── server-array-final.svg ├── megablink ├── megamap ├── megatrouble └── megaunblink /.gitignore: -------------------------------------------------------------------------------- 1 | blib/ 2 | .build/ 3 | _build/ 4 | cover_db/ 5 | inc/ 6 | Build 7 | !Build/ 8 | Build.bat 9 | .last_cover_stats 10 | Makefile 11 | Makefile.old 12 | MANIFEST.bak 13 | META.yml 14 | MYMETA.yml 15 | nytprof.out 16 | pm_to_blib 17 | 18 | # vim swap files 19 | *.sw[p-z] 20 | 21 | # perltidy temporary files 22 | *.tdy 23 | -------------------------------------------------------------------------------- /.perlcriticrc: -------------------------------------------------------------------------------- 1 | severity = 3 2 | color = 1 3 | color-severity-high = bold magenta 4 | color-severity-medium = bold magenta 5 | color-severity-low = blue 6 | color-severity-lowest = green 7 | 8 | [CodeLayout::RequireTidyCode] 9 | perltidyrc = .perltidyrc 10 | severity = 3 11 | 12 | [RegularExpressions::RequireExtendedFormatting] 13 | minimum_regex_length_to_complain_about = 5 14 | 15 | [Variables::ProhibitPunctuationVars] 16 | severity = 3 17 | -------------------------------------------------------------------------------- /.perltidyrc: -------------------------------------------------------------------------------- 1 | -ce 2 | -t 3 | -nola 4 | -l=110 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | {description} 294 | Copyright (C) {year} {fullname} 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ![logo](art/megamap-final-logo-100.png) 2 | # megamap 3 | 4 | MegaRAID™ Linux drive mapper 5 | 6 | ## Usage 7 | 8 | Run the `megamap` script and it will produce a map of MegaRAID drive ID to Linux drive `sd*` and also displays the WWN from Linux. 9 | 10 | ## Requirements 11 | 12 | * you need the [`megacli`](http://askubuntu.com/questions/488612/how-do-i-install-the-lsi-megacli-in-ubuntu) tool which needs to be run as `root` 13 | * [Readonly](https://metacpan.org/pod/Readonly) Perl module (debian package `libreadonly-perl`) 14 | 15 | ## Usage 16 | 17 | `megamap` takes no arguments and outputs a table of drive mappings such as: 18 | 19 | $ sudo megamap 20 | 0 sdc 0x5000cca02ab9e1a0 21 | 1 sdf 0x5000cca02ab9b548 22 | 2 sde 0x5000cca02ab9bad0 23 | 3 sdd 0x5000cca02ab9b928 24 | 4 sdh 0x5000cca02ab9b5e8 25 | 5 sdg 0x5000cca02ab9b86c 26 | 6 sdj 0x5000cca02ab9b8c0 27 | 7 sdi 0x5000cca02ab9dde8 28 | 8 sdn 0x5000cca02ab9b34c 29 | 9 sdk 0x5000cca02ab9e7d8 30 | 10 sdl 0x5000cca02ab9e0c0 31 | 11 sdm 0x5000cca02ab9b350 32 | 33 | `megablink` takes arguments of linux drives like `/dev/sda` or without the full 34 | path such as `sdb` and starts that drive blinking. Unblinking happens when the 35 | drive is replaced automatically, but there is also a `megaunblink` in case you 36 | accidentally blink the wrong drive. `megablink -u` also unblinks a drive. 37 | 38 | $ sudo ./megablink /dev/sdn 39 | blinking drive 8 (sdn), running megacli -PdLocate -start -physdrv[0:8] -a0 40 | 41 | Adapter: 0: Device at EnclId-0 SlotId-8 -- PD Locate Start Command was successfully sent to Firmware 42 | 43 | Exit Code: 0x00 44 | 45 | 46 | ![array](art/server-array-final-1000-white.png) 47 | 48 | ## Notes 49 | 50 | * :foggy: the Linux WWN is off-by-one or a few from what `megacli` shows. 51 | * :clap: thanks to http://serverfault.com/questions/381177/megacli-get-the-dev-sd-device-name-for-a-logical-drive/ for getting me to look in `/dev/disk/by-id` 52 | * :clap: thanks to http://www.network-administrator.co.uk/?p=575 for providing a handy reference to the `megacli` command structure 53 | * :snake: [lsidrivemap](https://github.com/louwrentius/lsidrivemap) is similar to `megamap`, but written in python and it has a nice table output format that shows the layout of the drives on the front of the server. 54 | * :clap: thanks to [Harry Lee](https://github.com/tclh123) for providing my first bug report and testing my eventual fix. It is really :doughnut: great to know one person is using my project. 55 | 56 | ## Support 57 | 58 | Please file a new [issue on github](https://github.com/chicks-net/megamap/issues) with 59 | the output from: 60 | 61 | * `megacli -pdlist -a0 | egrep 'Slot|^SAS'` 62 | * `ls -l /dev/disk/by-id` 63 | * `uname -a` 64 | * `lsb_release -a` 65 | 66 | The included script `megatrouble` will give you all of this in a format ready to post into an issue. 67 | 68 | 69 | ## Debug Mode 70 | 71 | If you set the `MEGAMAP_DEBUG` environment variable it won't run `megacli` or 72 | `ls` directly, but instead it will pull the data out of static files 73 | `/tmp/megacli.out` and `/tmp/ls.out`. If everything is working properly you 74 | should be able to generate those files like so: 75 | 76 | megacli -pdlist -a0 | egrep 'Slot|^SAS' > /tmp/megacli.out 77 | ls -l /dev/disk/by-id | grep -v part > /tmp/ls.out 78 | 79 | ## Ideas 80 | 81 | * docs in POD 82 | * verify that it works on a system with more than 26 attached drives (the author does not currently have access to such a system) 83 | * support multiple adapters through command line arguments or environment variables 84 | -------------------------------------------------------------------------------- /art/megamap-final-logo-100.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chicks-net/megamap/49cd2abb60774e34cc0bfefe8f2c0c1c26240896/art/megamap-final-logo-100.png -------------------------------------------------------------------------------- /art/megamap-final-logo-1000-white.png: 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| 1319 | 1320 | 1321 | 1322 | 1323 | 1324 | 1325 | 1331 | 1360 | 1361 | 1363 | 1364 | 1365 | 1366 | 1385 | 1386 | 1387 | 1388 | 1389 | 1391 | 1392 | 1393 | 1394 | 1407 | 1408 | 1416 | 1417 | 1418 | 1419 | 1420 | 1421 | 1422 | 1423 | 1424 | 1425 | 1426 | 1427 | 1428 | 1429 | 1430 | 1431 | 1432 | 1433 | 1434 | 1435 | 1436 | 1437 | 1438 | 1439 | 1440 | 1441 | 1442 | 1443 | 1444 | 1445 | 1446 | 1447 | 1448 | 1449 | 1452 | 1453 | 1454 | 1455 | 1456 | 1457 | 1458 | 1459 | 1462 | 1465 | 1478 | 1481 | 1484 | 1487 | 1489 | 1491 | 1492 | 1493 | 1495 | 1497 | 1500 | 1501 | 1504 | 1507 | 1510 | 1511 | 1516 | 1524 | 1533 | 1535 | 1537 | 1546 | 1549 | 1551 | 1553 | 1554 | 1555 | 1556 | 1557 | 1558 | 1559 | 1560 | 1561 | 1563 | 1583 | 1585 | 1604 | 1605 | 1606 | 1607 | 1608 | 1609 | 1610 | 1611 | 1612 | 1613 | 1614 | 1615 | 1616 | 1617 | 1618 | 1619 | 1620 | 1621 | 1622 | 1623 | 1624 | 1627 | 1628 | 1629 | 1630 | 1631 | 1632 | 1633 | 1634 | 1637 | 1640 | 1653 | 1654 | 1655 | 1656 | 1657 | 1658 | 1659 | 1660 | 1661 | 1664 | 1667 | 1670 | 1672 | 1674 | 1675 | 1676 | 1678 | 1679 | 1680 | 1682 | 1683 | 1684 | 1687 | 1688 | 1691 | 1694 | 1695 | 1698 | 1701 | 1702 | 1705 | 1706 | 1707 | 1708 | 1709 | 1710 | 1711 | 1712 | 1713 | 1714 | 1715 | 1716 | 1717 | 1718 | 1719 | 1720 | 1721 | 1722 | 1727 | 1735 | 1744 | 1745 | 1746 | 1747 | 1748 | 1749 | 1750 | 1751 | 1752 | 1753 | 1754 | 1755 | 1756 | 1757 | 1758 | 1759 | 1760 | 1762 | 1764 | 1767 | 1769 | 1771 | 1773 | 1774 | 1775 | 1776 | 1777 | 1778 | 1779 | 1780 | 1781 | 1783 | 1803 | 1805 | 1824 | 1825 | 1826 | 1827 | 1828 | -------------------------------------------------------------------------------- /megablink: -------------------------------------------------------------------------------- 1 | #!/usr/bin/perl 2 | 3 | use strict; 4 | use warnings; 5 | use Data::Dumper; 6 | use Carp; 7 | use English qw( -no_match_vars ); 8 | use Getopt::Long; 9 | 10 | our $VERSION = 0.3; 11 | 12 | # root or die 13 | my $username = ( getpwuid $EUID ); 14 | croak "megacli requires root" if $username ne 'root'; 15 | 16 | # CLI arguments 17 | my $unblink = 0; 18 | 19 | GetOptions( 20 | 'u|unblink' => \$unblink, 21 | ) or croak "error in command line args"; 22 | 23 | croak "no arguments... please specify which drives to blink" unless scalar @ARGV; 24 | my @drives = @ARGV; 25 | 26 | # pull in megamap 27 | my $megamap = `megamap`; 28 | my @maplines = split /\n/, $megamap; 29 | 30 | if ( scalar(@maplines) == 0 ) { 31 | warn "No output from megamap\n"; 32 | exit 2; 33 | } 34 | 35 | my %map; 36 | 37 | foreach my $line (@maplines) { 38 | chomp($line); 39 | my ( $megaraid_id, $linux_drive, $wwn ) = split( /\t/, $line ); 40 | $map{$linux_drive} = $megaraid_id; 41 | } 42 | 43 | # blink all the drives! 44 | foreach my $drive (@drives) { 45 | $drive =~ s{^/dev/}{}x; 46 | unless ( $drive =~ /^sd[a-z][a-z]?$/x or $drive =~ /^\d+$/ ) { 47 | croak "invalid drive spec '$drive', try sdc or 13"; 48 | } 49 | my $megaraid_id; 50 | if ( $drive =~ /^\d+$/ ) { 51 | $megaraid_id = $drive; 52 | } else { 53 | $megaraid_id = $map{$drive} 54 | } 55 | croak "no mapping for $drive" unless defined $megaraid_id; 56 | print "blinking drive $megaraid_id ($drive), "; 57 | my $gonogo = $unblink ? "stop" : "-start"; 58 | my $cmd = "megacli -PdLocate $gonogo -physdrv[0:$megaraid_id] -a0"; 59 | print "running $cmd\n"; 60 | system($cmd); 61 | } 62 | -------------------------------------------------------------------------------- /megamap: -------------------------------------------------------------------------------- 1 | #!/usr/bin/perl 2 | 3 | use strict; 4 | use warnings; 5 | use Data::Dumper; 6 | use Readonly; 7 | use Carp; 8 | use English qw( -no_match_vars ); 9 | 10 | our $VERSION = 0.9; 11 | Readonly my $END_WINDOW => 7; 12 | 13 | my $debug = $ENV{MEGAMAP_DEBUG} || 0; 14 | 15 | my $username = ( getpwuid $EUID ); 16 | croak "megacli requires root" if $username ne 'root'; 17 | 18 | my $megacli; 19 | 20 | unless ($debug) { 21 | $megacli = `megacli -pdlist -a0 | egrep 'Slot|^SAS'`; 22 | } else { 23 | print "# MEGAMAP_DEBUG=$debug\n"; 24 | $megacli = `cat /tmp/megacli.out`; 25 | } 26 | 27 | my @megalines = split /\n/, $megacli; 28 | 29 | if ( scalar(@megalines) == 0 ) { 30 | warn "No output from megacli\n"; 31 | exit 2; 32 | } 33 | 34 | my $slot; 35 | my %slot_map; 36 | foreach my $line (@megalines) { 37 | if ( $line =~ /^Slot[ ]Number/x ) { 38 | $line =~ s/.* //; 39 | $slot = $line; 40 | } 41 | if ( $line =~ /^SAS[ ]Address\(0\)/x ) { 42 | $line =~ s/.* //; 43 | $slot_map{$slot} = { megacli_sas => $line }; 44 | my $linux = $line; 45 | my $linux2 = $line; 46 | my $end = hex substr( $linux, 0 - $END_WINDOW ); 47 | $end--; 48 | $end = sprintf "%07x", $end; 49 | substr( $linux, 0 - $END_WINDOW ) = $end; 50 | substr( $linux2, -1 ) = '.'; 51 | $linux .= '|' . $linux2; 52 | 53 | my $ls_out; 54 | unless ($debug) { 55 | $ls_out = `ls -l /dev/disk/by-id | egrep '($linux)' | grep -v part`; 56 | } else { 57 | $ls_out = `egrep '($linux)' /tmp/ls.out`; 58 | } 59 | chomp($ls_out); 60 | ## print "$linux -> $ls_out\n"; 61 | 62 | if ( !length $ls_out ) { 63 | $slot_map{$slot}->{dev} = q{?}; 64 | next; 65 | } 66 | 67 | my $linux_wwn = 'unk'; 68 | if ( $ls_out =~ /wwn-(0x[\da-f]+)[ ]/x ) { 69 | $linux_wwn = $1 || 'bug'; 70 | } 71 | $slot_map{$slot}->{linux} = $linux_wwn; 72 | 73 | $ls_out =~ s/.* //; 74 | $ls_out =~ s{[./]}{}g; 75 | $slot_map{$slot}->{dev} = $ls_out; 76 | } 77 | } 78 | 79 | ## print Dumper(\%slot_map); 80 | 81 | foreach my $slot ( sort { $a <=> $b } keys %slot_map ) { 82 | my $dev = $slot_map{$slot}->{dev}; 83 | my $linux_drive = $slot_map{$slot}->{linux} || '???'; 84 | print "$slot\t$dev\t$linux_drive\n"; 85 | } 86 | 87 | -------------------------------------------------------------------------------- /megatrouble: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | echo '```' 4 | 5 | echo "### megacli:" 6 | megacli -pdlist -a0 | egrep 'Slot|^SAS' 7 | 8 | echo "" 9 | echo "### /dev/disk/by-id:" 10 | ls -l /dev/disk/by-id 11 | 12 | echo "" 13 | echo "### uname:" 14 | uname -a 15 | 16 | echo "" 17 | echo "### lsb_release:" 18 | lsb_release -a 19 | 20 | echo '```' 21 | -------------------------------------------------------------------------------- /megaunblink: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | megablink -u $* 4 | --------------------------------------------------------------------------------