├── .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
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11 | The licenses for most software are designed to take away your
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258 | NO WARRANTY
259 |
260 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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269 |
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279 |
280 | END OF TERMS AND CONDITIONS
281 |
282 | How to Apply These Terms to Your New Programs
283 |
284 | If you develop a new program, and you want it to be of the greatest
285 | possible use to the public, the best way to achieve this is to make it
286 | free software which everyone can redistribute and change under these terms.
287 |
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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:
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1 | 
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 | 
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 |
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2 |
3 |
298 |
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2 |
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/megablink:
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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 |
--------------------------------------------------------------------------------