X-Git-Url: https://git.openstreetmap.org./chef.git/blobdiff_plain/2b69a518ed7853fa5b52c95b09bcf47d09144193..1bc290ecce828f4a28d096c383815d2aa9199253:/cookbooks/hardware/templates/default/ohai.rb.erb?ds=sidebyside

diff --git a/cookbooks/hardware/templates/default/ohai.rb.erb b/cookbooks/hardware/templates/default/ohai.rb.erb
index 6a09804ab..c3308eb8c 100644
--- a/cookbooks/hardware/templates/default/ohai.rb.erb
+++ b/cookbooks/hardware/templates/default/ohai.rb.erb
@@ -1,14 +1,16 @@
+require "pathname"
+
 Ohai.plugin(:Hardware) do
   provides "hardware"
 
   def read_sysctl_link(file)
     File.basename(File.readlink(file))
-  rescue Errno::ENOENT
+  rescue Errno::ENOENT, Errno::ENOTDIR
   end
 
   def read_sysctl_file(file)
     IO.read(file).strip
-  rescue Errno::ENOENT, Errno::EINVAL
+  rescue Errno::ENOENT, Errno::ENOTDIR, Errno::EINVAL
   end
 
   def parse_memory_size(size)
@@ -59,9 +61,10 @@ Ohai.plugin(:Hardware) do
   end
 
   def pci_devices
+    devices = {}
     device = nil
 
-    IO.popen(["lspci", "-Dkvmm"]).each_with_object(Mash.new) do |line, devices|
+    IO.popen(["lspci", "-Dkvmm"]).each do |line|
       if line =~ /^Slot:\s+((\h{4}):(\h{2}):(\h{2}).(\h))\s*$/
         device = {
           :slot => Regexp.last_match(1),
@@ -88,6 +91,24 @@ Ohai.plugin(:Hardware) do
         device = nil
       end
     end
+
+    IO.popen(["lspci", "-Dkvmmn"]).each do |line|
+      if line =~ /^Slot:\s+((\h{4}):(\h{2}):(\h{2}).(\h))\s*$/
+        device = devices[Regexp.last_match(1)]
+      elsif device && line =~ /^([A-Z]+):\s+(.*)\s*$/i
+        case Regexp.last_match(1)
+        when "Class" then device[:class_id] = Regexp.last_match(2)
+        when "Vendor" then device[:vendor_id] = Regexp.last_match(2)
+        when "Device" then device[:device_id] = Regexp.last_match(2)
+        when "SVendor" then device[:subsystem_vendor_id] = Regexp.last_match(2)
+        when "SDevice" then device[:subsystem_device_id] = Regexp.last_match(2)
+        end
+      elsif device && line =~ /^\s*$/
+        device = nil
+      end
+    end
+
+    devices
   end
 
   def network_devices
@@ -125,15 +146,44 @@ Ohai.plugin(:Hardware) do
     disk[:disks] = []
 
     find_direct_disks(disk)
+    find_nvme_disks(disk)
 
-    find_hp_disks(disk) if File.exist?("/usr/sbin/hpssacli")
+    find_hp_disks(disk) if File.exist?("/usr/sbin/ssacli")
     find_megaraid_disks(disk) if File.exist?("/usr/sbin/megacli")
-    find_mpt_disks(disk) if File.exist?("/usr/sbin/sas2ircu")
-    # aacraid
+    find_mpt1_disks(disk) if File.exist?("/usr/sbin/lsiutil")
+    find_mpt2_disks(disk) if File.exist?("/usr/sbin/sas2ircu")
+    find_adaptec_disks(disk) if File.exist?("/usr/sbin/arcconf")
     find_areca_disks(disk) if File.exist?("/opt/areca/x86_64/cli64")
 
     find_md_arrays(disk)
 
+    disk[:disks].each do |disk|
+      if disk[:vendor] =~ /^(BTWA|CVPR|PHDV)/ && disk[:model] == "INTEL"
+        disk[:model] = disk[:serial_number]
+        disk[:serial_number] = disk[:vendor]
+        disk[:vendor] = "INTEL"
+      end
+
+      if disk[:vendor].nil? && disk[:model] =~ /^ATA\s+(.*)$/
+        disk[:vendor] = "ATA"
+        disk[:model] = Regexp.last_match(1)
+      end
+
+      if disk[:vendor].nil? || disk[:vendor] == "ATA"
+        if disk[:model] =~ /^(\S+)\s+(.*)$/
+          disk[:vendor] = Regexp.last_match(1)
+          disk[:model] = Regexp.last_match(2)
+        elsif disk[:model] =~ /^ST/
+          disk[:vendor] = "SEAGATE"
+        elsif disk[:model] =~ /^C300-(.*)$/
+          disk[:vendor] = "CRUCIAL"
+          disk[:model] = Regexp.last_match(1)
+        end
+      end
+
+      disk[:model].sub!(/-.*$/, "") if disk[:model]
+    end
+
     disk
   end
 
@@ -141,27 +191,20 @@ Ohai.plugin(:Hardware) do
     Dir.glob("/sys/class/scsi_host/host*") do |host|
       driver = read_sysctl_file("#{host}/proc_name")
 
-      if driver == "ahci" || driver == "mptsas"
+      if %w(ahci mptsas sata_mv sata_nv).include?(driver)
         bus = host.sub("/sys/class/scsi_host/host", "")
 
         Dir.glob("/sys/bus/scsi/devices/#{bus}:0:*").each do |device|
           next unless File.exist?("#{device}/scsi_disk")
 
           block = Dir.glob("#{device}/block/*").first
-          vendor = read_sysctl_file("#{device}/vendor")
-          model = read_sysctl_file("#{device}/model")
           size = read_sysctl_file("#{block}/size").to_f / 2
 
-          if vendor == "ATA" && model =~ /^(\S+)\s+(.*)$/
-            vendor = Regexp.last_match(1)
-            model = Regexp.last_match(2)
-          end
-
           devices[:disks] << {
             :id => devices[:disks].count,
             :device => "/dev/#{File.basename(block)}",
-            :vendor => vendor,
-            :model => model,
+            :vendor => read_sysctl_file("#{device}/vendor"),
+            :model => read_sysctl_file("#{device}/model"),
             :firmware_version => read_sysctl_file("#{device}/rev"),
             :size => format_disk_size(size),
             :arrays => []
@@ -171,11 +214,49 @@ Ohai.plugin(:Hardware) do
     end
   end
 
+  def find_nvme_disks(devices)
+    Dir.glob("/sys/class/nvme/nvme*") do |device|
+      controller = {
+        :id => devices[:controllers].count,
+        :pci_slot => File.basename(Pathname.new("#{device}/device").realpath),
+        :arrays => [],
+        :disks => []
+      }
+
+      devices[:controllers] << controller
+
+      IO.popen(["lspci", "-Dkvmm", "-s", controller[:pci_slot]]).each do |line|
+        if line =~ /^SVendor:\s+(\S.*\S)\s*$/
+          controller[:vendor] = Regexp.last_match(1)
+        elsif line =~ /^SDevice:\s+(\S.*\S)\s*$/
+          controller[:model] = Regexp.last_match(1)
+        end
+      end
+
+      Dir.glob("#{device}/nvme*").each do |block|
+        size = read_sysctl_file("#{block}/size").to_f / 2
+
+        disk = {
+          :id => devices[:disks].count,
+          :controller => controller[:id],
+          :device => "/dev/#{File.basename(block)}",
+          :vendor => controller[:vendor],
+          :model => controller[:model],
+          :size => format_disk_size(size),
+          :arrays => []
+        }
+
+        devices[:disks] << disk
+        controller[:disks] << disk[:id]
+      end
+    end
+  end
+
   def find_md_arrays(devices)
     array = nil
 
     File.new("/proc/mdstat", "r").each do |line|
-      if line =~ /^(md\d+) : active raid(\d+)((?: [a-z]+\d+\[\d+\](?:\([A-Z]\))*)+)$/
+      if line =~ /^(md\d+) : active raid(\d+)((?: (?:sd[a-z]|nvme\d+n\d+)\d*\[\d+\](?:\([A-Z]\))*)+)$/
         array = {
           :id => devices[:arrays].count,
           :device => "/dev/#{Regexp.last_match(1)}",
@@ -183,7 +264,7 @@ Ohai.plugin(:Hardware) do
           :disks => []
         }
 
-        Regexp.last_match(3).scan(/ ([a-z]+)\d+\[\d+\](?:\([A-Z]\))*/).flatten.each do |device|
+        Regexp.last_match(3).scan(/ (sd[a-z]+|nvme\d+n\d+)\d*\[\d+\](?:\([A-Z]\))*/).flatten.each do |device|
           if disk = devices[:disks].find { |d| d[:device] == "/dev/#{device}" }
             disk[:arrays] << array[:id]
             array[:disks] << disk[:id]
@@ -191,7 +272,7 @@ Ohai.plugin(:Hardware) do
         end
 
         devices[:arrays] << array
-      elsif line =~ /^\s+(\d+) blocks/
+      elsif array && line =~ /^\s+(\d+) blocks/
         array[:size] = format_disk_size(Regexp.last_match(1).to_i)
       end
     end
@@ -205,8 +286,8 @@ Ohai.plugin(:Hardware) do
     array = nil
     disk = nil
 
-    IO.popen(%w(hpssacli controller all show config detail)).each do |line|
-      if line =~ /^Smart Array (\S+) /
+    IO.popen(%w(ssacli controller all show config detail)).each do |line|
+      if line =~ /^Smart (?:Array|HBA) (\S+) /
         controller = {
           :id => devices[:controllers].count,
           :model => Regexp.last_match(1),
@@ -222,6 +303,7 @@ Ohai.plugin(:Hardware) do
         disk = nil
       elsif controller && line =~ /^   (\S.*):\s+(.*)$/
         case Regexp.last_match(1)
+        when "Slot" then controller[:slot] = Regexp.last_match(2)
         when "Serial Number" then controller[:serial_number] = Regexp.last_match(2)
         when "Hardware Revision" then controller[:hardware_version] = Regexp.last_match(2)
         when "Firmware Version" then controller[:firmware_version] = Regexp.last_match(2)
@@ -239,30 +321,27 @@ Ohai.plugin(:Hardware) do
         controller[:arrays] << array[:id]
 
         disk = nil
-      elsif controller && line =~ /^      physicaldrive (\S+) /
-        disks << Regexp.last_match(1)
       elsif array && line =~ /^      physicaldrive (\S+)$/
         disk = {
           :id => devices[:disks].count,
           :controller => controller[:id],
           :arrays => [array[:id]],
-          :location => Regexp.last_match(1),
-          :smart_device => "cciss,#{disks.find_index(Regexp.last_match(1))}"
+          :location => Regexp.last_match(1)
         }
 
         devices[:disks] << disk
         controller[:disks] << disk[:id]
         array[:disks] << disk[:id]
-      elsif disk && line =~ /^         (\S[^:]+):\s+(.*)$/
+      elsif disk && line =~ /^         (\S[^:]+):\s+(.*\S)\s*$/
         case Regexp.last_match(1)
         when "Interface Type" then disk[:interface] = Regexp.last_match(2)
         when "Size" then disk[:size] = Regexp.last_match(2)
         when "Rotational Speed" then disk[:rpm] = Regexp.last_match(2)
         when "Firmware Revision" then disk[:firmware_version] = Regexp.last_match(2)
         when "Serial Number" then disk[:serial_number] = Regexp.last_match(2)
-        when "Model" then disk[:vendor], disk[:model] = Regexp.last_match(2).squeeze(" ").strip.sub(/^ATA /, "").split
+        when "Model" then disk[:model] = Regexp.last_match(2)
         end
-      elsif array && line =~ /^         (\S[^:]+):\s+(.*)$/
+      elsif array && line =~ /^         (\S[^:]+):\s+(.*\S)\s*$/
         case Regexp.last_match(1)
         when "Size" then array[:size] = Regexp.last_match(2)
         when "Fault Tolerance" then array[:raid_level] = Regexp.last_match(2)
@@ -274,12 +353,26 @@ Ohai.plugin(:Hardware) do
     end
 
     controllers.each do |controller|
+      slot = controller[:slot]
+
+      IO.popen(%W(ssacli controller slot=#{slot} pd all show status)).each do |line|
+        if line =~ /^   physicaldrive (\S+) /
+          disks << Regexp.last_match(1)
+        end
+      end
+
       if device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/cciss*").first
         controller[:device] = File.basename(device).sub(/^cciss(\d+)$/, "/dev/cciss/c\\1d0")
-      elsif device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/host*/target0:0:0/0:0:0:0/scsi_generic/sg*").first
+      elsif device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/host*/target*:3:0/*:3:0:0/scsi_generic/sg*").first
+        controller[:device] = "/dev/#{File.basename(device)}"
+      elsif device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/host*/target*:1:0/*:1:0:*/scsi_generic/sg*").first
         controller[:device] = "/dev/#{File.basename(device)}"
       end
     end
+
+    devices[:disks].each do |disk|
+     disk[:smart_device] = "cciss,#{disks.find_index(disk[:location])}"
+    end
   end
 
   def find_megaraid_disks(devices)
@@ -354,13 +447,24 @@ Ohai.plugin(:Hardware) do
         devices[:disks] << disk
         controller[:disks] << disk[:id]
         array[:disks] << disk[:id]
+      elsif disk && line =~ /^Firmware state:\s+(.*\S)\s*$/
+        Regexp.last_match(1).split(/,\s*/).each do |state|
+          case state
+          when "Unconfigured(bad)" then disk[:status] = "unconfigured"
+          when "Online" then disk[:status] = "online"
+          when "Hotspare" then disk[:status] = "hotspare"
+          when "Failed" then disk[:status] = "failed"
+          when "Spun Up" then disk[:state] = "spun_up"
+          when "Spun down" then disk[:state] = "spun_down"
+          end
+        end
       elsif disk && line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
         case Regexp.last_match(1)
-        when "Device Id" then disk[:smart_devlce] = "megaraid,#{Regexp.last_match(2)}"
+        when "Device Id" then disk[:smart_device] = "megaraid,#{Regexp.last_match(2)}"
         when "WWN" then disk[:wwn] = Regexp.last_match(2)
         when "PD Type" then disk[:interface] = Regexp.last_match(2)
         when "Raw Size" then disk[:size] = memory_to_disk_size(Regexp.last_match(2).sub(/\s*\[.*\]$/, ""))
-        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial] = Regexp.last_match(2).split
+        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial_number] = Regexp.last_match(2).split
         end
       elsif array && line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
         case Regexp.last_match(1)
@@ -384,13 +488,23 @@ Ohai.plugin(:Hardware) do
 
           devices[:disks] << disk
         end
+      elsif disk && line =~ /^Firmware state:\s+(.*\S)\s*$/
+        Regexp.last_match(1).split(/,\s*/).each do |state|
+          case state
+          when "Unconfigured(bad)" then disk[:status] = "unconfigured"
+          when "Online" then disk[:status] = "online"
+          when "Hotspare" then disk[:status] = "hotspare"
+          when "Failed" then disk[:status] = "failed"
+          when "Spun Up" then disk[:state] = "spun_up"
+          when "Spun down" then disk[:state] = "spun_down"
+          end
+        end
       elsif disk && line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
         case Regexp.last_match(1)
-        when "Device Id" then disk[:smart_devlce] = "megaraid,#{Regexp.last_match(2)}"
-        when "WWN" then disk[:wwn] = Regexp.last_match(2)
+        when "Device Id" then disk[:smart_device] = "megaraid,#{Regexp.last_match(2)}"
         when "PD Type" then disk[:interface] = Regexp.last_match(2)
         when "Raw Size" then disk[:size] = memory_to_disk_size(Regexp.last_match(2).sub(/\s*\[.*\]$/, ""))
-        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial] = Regexp.last_match(2).split
+        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial_number] = Regexp.last_match(2).split
         end
       end
     end
@@ -402,7 +516,86 @@ Ohai.plugin(:Hardware) do
     end
   end
 
-  def find_mpt_disks(devices)
+  def find_mpt1_disks(devices)
+    controllers = []
+    disks = []
+
+    controller = nil
+
+    IO.popen(%w(lsiutil -s)).each do |line|
+      if line =~ /^\/proc\/mpt\/ioc(\d+)\s+LSI Logic\s+(\S+)\s+/
+        controller = {
+          :id => devices[:controllers].count,
+          :model => Regexp.last_match(1),
+          :arrays => [],
+          :disks => []
+        }
+
+        controllers << controller
+        devices[:controllers] << controller
+      elsif line =~ /^\s+(\d+)\s+(\d+)\s+PhysDisk (\d+)\s+(\S+)\s+(\S+)\s+\d+\s+(\S+)\s+/
+        disks[Regexp.last_match(3).to_i] = {
+          :id => devices[:disks].count,
+          :controller => controller[:id],
+          :vendor => Regexp.last_match(4),
+          :model => Regexp.last_match(5),
+          :sas_address => Regexp.last_match(6),
+          :arrays => []
+        }
+
+        controller[:disks] << devices[:disks].count
+        devices[:disks] << disks[Regexp.last_match(3).to_i]
+      end
+    end
+
+    controllers.each_with_index do |controller, index|
+      port = index + 1
+      array = nil
+
+      IO.popen(["lsiutil", "-p", port.to_s, "-a", "69,0"]).each do |line|
+        if line =~ /^ (\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+RAID/
+          seg = Regexp.last_match(1).to_i
+          bus = Regexp.last_match(2).to_i
+          dev = Regexp.last_match(3).to_i
+          fun = Regexp.last_match(4).to_i
+
+          controller[:pci_slot] = sprintf("%04x:%02x:%02x.%01x", seg, bus, dev, fun)
+        end
+      end
+
+      IO.popen(["lsiutil", "-p", port.to_s, "-a", "21,1,0,0"]).each do |line|
+        if line =~ /^Volume (\d+) is/
+          array = {
+            :id => devices[:arrays].count,
+            :controller => controller[:id],
+            :number => Regexp.last_match(1),
+            :disks => []
+          }
+
+          devices[:arrays] << array
+          controller[:arrays] << array[:id]
+        elsif line =~ /^  Member \d+ is PhysDisk (\d+) /
+          array[:disks] << disks[Regexp.last_match(1).to_i][:id]
+          disks[Regexp.last_match(1).to_i][:arrays] << array[:id]
+        end
+      end
+    end
+
+    disks.each do |disk|
+      slot = controllers[disk[:controller]][:pci_slot]
+      sas_address = "0x#{disk[:sas_address]}"
+
+      Dir.glob("/sys/bus/pci/devices/#{slot}/host*/port-*:*/end_device-*:*/sas_device/end_device-*:*").each do |sas_device|
+        if read_sysctl_file("#{sas_device}/sas_address") == sas_address
+          if device = Dir.glob("#{sas_device}/device/target*:0:*/*:0:*:0/scsi_generic/sg*").first
+            disk[:device] = "/dev/#{File.basename(device)}"            
+          end
+        end
+      end
+    end
+  end
+
+  def find_mpt2_disks(devices)
     controllers = []
 
     IO.popen(%w(sas2ircu list)).each do |line|
@@ -488,6 +681,114 @@ Ohai.plugin(:Hardware) do
     end
   end
 
+  def find_adaptec_disks(devices)
+    controller_count = IO.popen(%w(arcconf getconfig 0)).first.scan(/^Controllers Found: (\d+)$/i).first.first.to_i
+
+    1.upto(controller_count).each do |controller_number|
+      controller = {
+        :id => devices[:controllers].count,
+        :number => controller_number,
+        :arrays => [],
+        :disks => []
+      }
+
+      devices[:controllers] << controller
+
+      arrays = []
+      disks = []
+
+      array = nil
+      disk = nil
+
+      IO.popen(["arcconf", "getconfig", controller_number.to_s]).each do |line|
+        if line =~ /^Logical Device Number (\d+)$/i
+          array = {
+            :id => devices[:arrays].count,
+            :controller => controller[:id],
+            :number => Regexp.last_match(1).to_i,
+            :disks => []
+          }
+
+          devices[:arrays] << array
+          controller[:arrays] << array[:id]
+
+          arrays << array
+        elsif line =~ /^      Device #(\d+)$/
+          disk = nil
+        elsif line =~ /^         Device is a Hard drive$/
+          disk = {
+            :id => devices[:disks].count,
+            :controller => controller[:id],
+            :arrays => []
+          }
+
+          devices[:disks] << disk
+          controller[:disks] << disk[:id]
+
+          disks << disk
+        elsif disk && line =~ /^         Reported Channel,Device\(T:L\)\s*:\s+(\d+),(\d+)\(\d+:0\)\s*$/
+          disk[:channel_number] = Regexp.last_match(1)
+          disk[:device_number] = Regexp.last_match(2)
+        elsif disk && line =~ /^         (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Reported Location" then disk[:location] = Regexp.last_match(2)
+          when "Vendor" then disk[:vendor] = Regexp.last_match(2)
+          when "Model" then disk[:model] = Regexp.last_match(2)
+          when "Firmware" then disk[:firmware_version] = Regexp.last_match(2)
+          when "Serial number" then disk[:serial_number] = Regexp.last_match(2)
+          when "Serial Number" then disk[:serial_number] = Regexp.last_match(2)
+          when "World-wide name" then disk[:wwn] = Regexp.last_match(2)
+          when "World-wide Name" then disk[:wwn] = Regexp.last_match(2)
+          when "Total Size" then disk[:size] = memory_to_disk_size(Regexp.last_match(2))
+          when "Size" then disk[:size] = memory_to_disk_size(Regexp.last_match(2))
+          end
+        elsif array && line =~ / Present \(.*((?:Connector|Enclosure):\d+,\s*(?:Device|Slot):\d+)\) /
+          array[:disks] << Regexp.last_match(1).tr(":", " ").gsub(/,\s*/, ", ")
+        elsif array && line =~ /^   (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "RAID level" then array[:raid_level] = Regexp.last_match(2)
+          when "RAID Level" then array[:raid_level] = Regexp.last_match(2)
+          when "Size" then array[:size] = memory_to_disk_size(Regexp.last_match(2))
+          end
+        elsif line =~ /^   (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Controller Model" then controller[:model] = Regexp.last_match(2)
+          when "Controller Serial Number" then controller[:serial_number] = Regexp.last_match(2)
+          when "Controller World Wide Name" then controller[:wwn] = Regexp.last_match(2)
+          when "BIOS" then controller[:bios_version] = Regexp.last_match(2)
+          when "Firmware" then controller[:firmware_version] = Regexp.last_match(2)
+          end
+        elsif line =~ /^         Serial Number\s*:\s+(\S.*\S)\s*$/
+          controller[:serial_number] = Regexp.last_match(1)
+        end
+      end
+
+      host = Dir.glob("/sys/class/scsi_host/host*").find do |host|
+        read_sysctl_file("#{host}/serial_number") == controller[:serial_number]
+      end
+
+      arrays.each do |array|
+        array_number = array[:number]
+        device = Dir.glob("#{host}/device/target*:0:#{array_number}/*:0:#{array_number}:0/block/*").first
+
+        array[:device] = "/dev/#{File.basename(device)}"
+
+        array[:disks].map! do |location|
+          disk = disks.find { |disk| disk[:location] == location }
+
+          controller_number = controller[:number] - 1
+          device_number = disk[:device_number]
+
+          disk[:device] = "/dev/#{File.basename(device)}"
+          disk[:smart_device] = "aacraid,#{controller_number},0,#{device_number}"
+
+          disk[:arrays] << array[:id]
+          disk[:id]
+        end
+      end
+    end
+  end
+
   def find_areca_disks(devices)
     controller = {
       :id => devices[:controllers].count,
@@ -595,6 +896,108 @@ Ohai.plugin(:Hardware) do
     end
   end
 
+  def lvm_devices
+    {
+      :pvs => find_lvm_pvs,
+      :vgs => find_lvm_vgs,
+      :lvs => find_lvm_lvs
+    }
+  end
+
+  def find_lvm_pvs
+    IO.popen(["pvdisplay", "-c"]).each_with_object({}) do |line, pvs|
+      fields = line.strip.split(":")
+
+      pvs[fields[0]] = {
+        :vg => fields[1],
+        :pv_size => fields[2],
+        :pv_status => fields[4],
+        :pe_size => fields[7],
+        :pe_total => fields[8],
+        :pe_free => fields[9],
+        :pe_allocated => fields[10],
+        :pv_uuid => fields[11]
+      }
+    end
+  end
+
+  def find_lvm_vgs
+    IO.popen(["vgdisplay", "-c"]).each_with_object({}) do |line, vgs|
+      fields = line.strip.split(":")
+
+      vgs[fields[0]] = {
+        :vg_access => fields[1],
+        :vg_status => fields[2],
+        :lv_maximum => fields[4],
+        :lv_count => fields[5],
+        :lv_open => fields[6],
+        :pv_maximum => fields[8],
+        :pv_current => fields[9],
+        :pv_actual => fields[10],
+        :vg_size => fields[11],
+        :pe_size => fields[12],
+        :pe_total => fields[13],
+        :pe_allocated => fields[14],
+        :pe_free => fields[15],
+        :vg_uuid => fields[16]
+      }
+    end
+  end
+
+  def find_lvm_lvs
+    IO.popen(["lvdisplay", "-c"]).each_with_object({}) do |line, lvs|
+      fields = line.strip.split(":")
+
+      lvs[fields[0]] = {
+        :vg => fields[1],
+        :lv_access => fields[2],
+        :lv_status => fields[3],
+        :lv_open => fields[5],
+        :lv_size => fields[6],
+        :le_count => fields[7],
+        :lv_minor => fields[11],
+        :lv_major => fields[12]
+      }
+    end
+  end
+
+  def psu_devices
+    device = nil
+
+    IO.popen(["dmidecode", "-t", "39"]).each_with_object([]) do |line, devices|
+      if line =~ /^System Power Supply\s*$/
+        device = {}
+      elsif device && line =~ /^\s+([A-Z ]+):\s+(.*)\s*$/i
+        device[Regexp.last_match(1).tr(" ", "_").downcase.to_sym] = Regexp.last_match(2).strip
+      elsif device && line =~ /^\s*$/
+        devices << device
+        device = nil
+      end
+    end
+  end
+
+  def mc_device
+    device = {}
+
+    IO.popen(["ipmitool", "mc", "info"]).each_with_object([]) do |line, devices|
+      if line =~ /(Manufacturer [A-Z ]+[A-Z])\s*:\s+(.*\S)\s+\(.*\)\s*$/i
+        device[Regexp.last_match(1).tr(" ", "_").downcase.to_sym] = Regexp.last_match(2)
+      elsif line =~ /(Product [A-Z ]+[A-Z])\s*:\s+(.*\S)\s+\(.*\)\s*$/i
+        device[Regexp.last_match(1).tr(" ", "_").downcase.to_sym] = Regexp.last_match(2)
+      elsif line =~ /([A-Z ]+[A-Z])\s*:\s+(.*\S)\s*$/i
+        device[Regexp.last_match(1).tr(" ", "_").downcase.to_sym] = Regexp.last_match(2)
+      end
+    end
+
+    IO.popen(["ipmitool", "mc", "guid"]).each_with_object([]) do |line, devices|
+      if line =~ /^System GUID\s*:\s+(\S+)\s*$/
+        device[:system_guid] = Regexp.last_match(1)
+      end
+    end
+
+    device
+  end
+
   collect_data(:default) do
     hardware Mash.new
 
@@ -602,5 +1005,8 @@ Ohai.plugin(:Hardware) do
     hardware[:network] = network_devices
     hardware[:memory] = memory_devices
     hardware[:disk] = disk_devices
+    hardware[:lvm] = lvm_devices
+    hardware[:psu] = psu_devices
+    hardware[:mc] = mc_device
   end
 end