]> git.openstreetmap.org Git - chef.git/blobdiff - cookbooks/hardware/templates/default/ohai.rb.erb
Gather information on NVME disks
[chef.git] / cookbooks / hardware / templates / default / ohai.rb.erb
index 941a028f5d0d08539be580611c949291d143f03a..5854de82dac04c0cc6b50d4692e30baf0d161588 100644 (file)
@@ -1,3 +1,5 @@
+require "pathname"
+
 Ohai.plugin(:Hardware) do
   provides "hardware"
 
@@ -11,6 +13,53 @@ Ohai.plugin(:Hardware) do
   rescue Errno::ENOENT, Errno::EINVAL
   end
 
+  def parse_memory_size(size)
+    if size =~ /^(\d+(?:\.\d+)?)\s*TB/i
+      Regexp.last_match(1).to_f * 2**30
+    elsif size =~ /^(\d+(?:\.\d+)?)\s*GB/i
+      Regexp.last_match(1).to_f * 2**20
+    elsif size =~ /^(\d+(?:\.\d+)?)\s*MB/i
+      Regexp.last_match(1).to_f * 2**10
+    end
+  end
+
+  def format_disk_size(kb)
+    if kb == 0
+      ""
+    else
+      kblog10 = Math.log10(kb).floor
+
+      kb = kb.to_f * 2 / 10**kblog10
+      kb = kb.round.to_f / 2
+
+      if kblog10 >= 9
+        format "%gTB", kb * 10**(kblog10 - 9)
+      elsif kblog10 >= 6
+        format "%dGB", kb * 10**(kblog10 - 6)
+      else
+        format "%dMB", kb * 10**(kblog10 - 3)
+      end
+    end
+  end
+
+  def memory_to_disk_size(size)
+    format_disk_size(parse_memory_size(size))
+  end
+
+  def find_sas_device(address)
+    file = Dir.glob("/sys/class/scsi_generic/sg*/device/sas_address").find do |file|
+      read_sysctl_file(file) == "0x#{address}"
+    end
+
+    if file
+      dir = File.dirname(file)
+      device = Dir.glob("#{dir}/block/*").first ||
+               Dir.glob("#{dir}/scsi_generic/*").first
+
+      "/dev/#{File.basename(device)}"
+    end
+  end
+
   def pci_devices
     device = nil
 
@@ -70,11 +119,631 @@ Ohai.plugin(:Hardware) do
     end
   end
 
+  def disk_devices
+    disk = Mash.new
+
+    disk[:controllers] = []
+    disk[:arrays] = []
+    disk[:disks] = []
+
+    find_direct_disks(disk)
+    find_nvme_disks(disk)
+
+    find_hp_disks(disk) if File.exist?("/usr/sbin/hpssacli")
+    find_megaraid_disks(disk) if File.exist?("/usr/sbin/megacli")
+    find_mpt_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
+  end
+
+  def find_direct_disks(devices)
+    Dir.glob("/sys/class/scsi_host/host*") do |host|
+      driver = read_sysctl_file("#{host}/proc_name")
+
+      if driver == "ahci" || driver == "mptsas"
+        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+(.*)$/
+            vendor = Regexp.last_match(1)
+            model = Regexp.last_match(2)
+          end
+
+          devices[:disks] << {
+            :id => devices[:disks].count,
+            :device => "/dev/#{File.basename(block)}",
+            :vendor => vendor,
+            :model => model,
+            :firmware_version => read_sysctl_file("#{device}/rev"),
+            :size => format_disk_size(size),
+            :arrays => []
+          }
+        end
+      end
+    end
+  end
+
+  def find_nvme_disks(devices)
+    Dir.glob("/sys/class/misc/nvme*") do |device|
+      controller = {
+        :id => devices[:controllers].count,
+        :pci_slot => File.basename(Pathname.new("#{device}/device").realpath),
+        :arrays => [],
+        :disks => []
+      }
+
+      devices[:controllers] << controller
+
+      IO.popen(["lspci", "-Dkvmm", "-s", controller[:pci_slot]]).each do |line|
+        if line =~ /^SVendor:\s+(\S.*\S)\s*$/
+          controller[:vendor] = Regexp.last_match(1)
+        elsif line =~ /^SDevice:\s+(\S.*\S)\s*$/
+          controller[:model] = Regexp.last_match(1)
+        end
+      end
+
+      Dir.glob("#{device}/device/block/*").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+)((?: (?:sd[a-z]|nvme\d+n\d+)\d*\[\d+\](?:\([A-Z]\))*)+)$/
+        array = {
+          :id => devices[:arrays].count,
+          :device => "/dev/#{Regexp.last_match(1)}",
+          :raid_level => Regexp.last_match(2),
+          :disks => []
+        }
+
+        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]
+          end
+        end
+
+        devices[:arrays] << array
+      elsif array && line =~ /^\s+(\d+) blocks/
+        array[:size] = format_disk_size(Regexp.last_match(1).to_i)
+      end
+    end
+  end
+
+  def find_hp_disks(devices)
+    controllers = []
+    disks = []
+
+    controller = nil
+    array = nil
+    disk = nil
+
+    IO.popen(%w(hpssacli controller all show config detail)).each do |line|
+      if line =~ /^Smart Array (\S+) /
+        controller = {
+          :id => devices[:controllers].count,
+          :model => Regexp.last_match(1),
+          :arrays => [],
+          :disks => []
+        }
+
+        devices[:controllers] << controller
+
+        controllers << controller
+
+        array = nil
+        disk = nil
+      elsif controller && line =~ /^   (\S.*):\s+(.*)$/
+        case Regexp.last_match(1)
+        when "Serial Number" then controller[:serial_number] = Regexp.last_match(2)
+        when "Hardware Revision" then controller[:hardware_version] = Regexp.last_match(2)
+        when "Firmware Version" then controller[:firmware_version] = Regexp.last_match(2)
+        when "PCI Address (Domain:Bus:Device.Function)" then controller[:pci_slot] = Regexp.last_match(2)
+        end
+      elsif controller && line =~ /^      Logical Drive: (\d+)$/
+        array = {
+          :id => devices[:arrays].count,
+          :controller => controller[:id],
+          :number => Regexp.last_match(1),
+          :disks => []
+        }
+
+        devices[:arrays] << array
+        controller[:arrays] << array[:id]
+
+        disk = nil
+      elsif controller && line =~ /^      physicaldrive (\S+) /
+        disks << Regexp.last_match(1)
+      elsif array && line =~ /^      physicaldrive (\S+)$/
+        disk = {
+          :id => devices[:disks].count,
+          :controller => controller[:id],
+          :arrays => [array[:id]],
+          :location => Regexp.last_match(1),
+          :smart_device => "cciss,#{disks.find_index(Regexp.last_match(1))}"
+        }
+
+        devices[:disks] << disk
+        controller[:disks] << disk[:id]
+        array[:disks] << disk[:id]
+      elsif disk && line =~ /^         (\S[^:]+):\s+(.*)$/
+        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
+        end
+      elsif array && line =~ /^         (\S[^:]+):\s+(.*)$/
+        case Regexp.last_match(1)
+        when "Size" then array[:size] = Regexp.last_match(2)
+        when "Fault Tolerance" then array[:raid_level] = Regexp.last_match(2)
+        when "Disk Name" then array[:device] = Regexp.last_match(2).strip
+        when "Mount Points" then array[:mount_point] = Regexp.last_match(2).split.first
+        when "Unique Identifier" then array[:wwn] = Regexp.last_match(2)
+        end
+      end
+    end
+
+    controllers.each do |controller|
+      if device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/cciss*").first
+        controller[:device] = File.basename(device).sub(/^cciss(\d+)$/, "/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
+        controller[:device] = "/dev/#{File.basename(device)}"
+      end
+    end
+  end
+
+  def find_megaraid_disks(devices)
+    controllers = []
+    arrays = []
+
+    controller = nil
+    array = nil
+    disk = nil
+
+    IO.popen(%w(megacli -AdpGetPciInfo -aAll -NoLog)).each do |line|
+      if line =~ /^PCI information for Controller (\d+)$/
+        controller = {
+          :id => devices[:controllers].count,
+          :arrays => [],
+          :disks => []
+        }
+
+        devices[:controllers] << controller
+
+        controllers << controller
+      elsif line =~ /^Bus Number\s+:\s+(\d+)$/
+        controller[:pci_slot] = format "0000:%02x", Integer("0x#{Regexp.last_match(1)}")
+      elsif line =~ /^Device Number\s+:\s+(\d+)$/
+        controller[:pci_slot] = format "%s:%02x", controller[:pci_slot], Integer("0x#{Regexp.last_match(1)}")
+      elsif line =~ /^Function Number\s+:\s+(\d+)$/
+        controller[:pci_slot] = format "%s.%01x", controller[:pci_slot], Integer("0x#{Regexp.last_match(1)}")
+      end
+    end
+
+    IO.popen(%w(megacli -AdpAllInfo -aAll -NoLog)).each do |line|
+      if line =~ /^Adapter #(\d+)$/
+        controller = controllers[Regexp.last_match(1).to_i]
+      elsif line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
+        case Regexp.last_match(1)
+        when "Product Name" then controller[:model] = Regexp.last_match(2)
+        when "Serial No" then controller[:serial_number] = Regexp.last_match(2)
+        when "FW Package Build" then controller[:firmware_version] = Regexp.last_match(2)
+        end
+      end
+    end
+
+    IO.popen(%w(megacli -LdPdInfo -aAll -NoLog)).each do |line|
+      if line =~ /^Adapter #(\d+)$/
+        controller = controllers[Regexp.last_match(1).to_i]
+      elsif controller && line =~ /^Virtual Drive: (\d+) \(Target Id: (\d+)\)$/
+        pci_slot = controller[:pci_slot]
+        target = Regexp.last_match(2)
+        device = Dir.glob("/sys/bus/pci/devices/#{pci_slot}/host*/target*:2:#{target}/*:2:#{target}:0/block/*").first
+
+        array = {
+          :id => devices[:arrays].count,
+          :controller => controller[:id],
+          :number => Regexp.last_match(1),
+          :device => "/dev/#{File.basename(device)}",
+          :disks => []
+        }
+
+        devices[:arrays] << array
+        controller[:arrays] << array[:id]
+
+        arrays << array
+
+        disk = nil
+      elsif array && line =~ /^PD: (\d+) Information$/
+        disk = {
+          :id => devices[:disks].count,
+          :controller => controller[:id],
+          :arrays => [array[:id]]
+        }
+
+        devices[:disks] << disk
+        controller[:disks] << disk[:id]
+        array[:disks] << disk[:id]
+      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 "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*\[.*\]$/, ""))
+        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial] = Regexp.last_match(2).split
+        end
+      elsif array && line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
+        case Regexp.last_match(1)
+        when "RAID Level" then array[:raid_level] = Regexp.last_match(2).scan(/Primary-(\d+)/).first.first
+        when "Size" then array[:size] = Regexp.last_match(2)
+        end
+      end
+    end
+
+    IO.popen(%w(megacli -PDList -aAll -NoLog)).each do |line|
+      if line =~ /^Adapter #(\d+)$/
+        controller = controllers[Regexp.last_match(1).to_i]
+      elsif controller && line =~ /^Enclosure Device ID: \d+$/
+        disk = {
+          :controller => controller[:id]
+        }
+      elsif disk && line =~ /^WWN:\s+(\S+)$/
+        unless devices[:disks].find { |d| d[:wwn] == Regexp.last_match(1) }
+          disk[:id] = devices[:disks].count
+          disk[:wwn] = Regexp.last_match(1)
+
+          devices[:disks] << disk
+        end
+      elsif disk && line =~ /^(\S.*\S)\s*:\s+(\S.*)$/
+        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 "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*\[.*\]$/, ""))
+        when "Inquiry Data" then disk[:vendor], disk[:model], disk[:serial] = Regexp.last_match(2).split
+        end
+      end
+    end
+
+    controllers.each do |controller|
+      if device = Dir.glob("/sys/bus/pci/devices/#{controller[:pci_slot]}/host*/target*:2:0/*/scsi_generic/sg*").first
+        controller[:device] = "/dev/#{File.basename(device)}"
+      end
+    end
+  end
+
+  def find_mpt_disks(devices)
+    controllers = []
+
+    IO.popen(%w(sas2ircu list)).each do |line|
+      next unless line =~ /^\s+(\d+)\s+(\S+)\s+\h+h\s+\h+h\s+(\S+)\s+\h+h\s+\h+h\s*$/
+      controllers[Regexp.last_match(1).to_i] = {
+        :id => devices[:controllers].count,
+        :model => Regexp.last_match(2),
+        :pci_slot => Regexp.last_match(3).sub(/^(\h{2})h:(\h{2})h:(\h{2})h:0(\h)h$/, "00\\1:\\2:\\3.\\4"),
+        :arrays => [],
+        :disks => []
+      }
+
+      devices[:controllers] << controllers[Regexp.last_match(1).to_i]
+    end
+
+    controllers.each_with_index do |controller, index|
+      arrays = []
+      disks = []
+
+      array = nil
+      disk = nil
+
+      IO.popen(["sas2ircu", index.to_s, "display"]).each do |line|
+        if line =~ /^IR volume (\d+)$/
+          array = {
+            :id => devices[:arrays].count,
+            :controller => controller[:id],
+            :number => Regexp.last_match(1),
+            :disks => []
+          }
+
+          devices[:arrays] << array
+          controller[:arrays] << array[:id]
+
+          arrays << array
+        elsif line =~ /^Device is a Hard disk$/
+          disk = {
+            :id => devices[:disks].count,
+            :controller => controller[:id],
+            :arrays => []
+          }
+
+          devices[:disks] << disk
+          controller[:disks] << disk[:id]
+
+          disks << disk
+        elsif disk && line =~ /^  (\S.*\S)\s+:\s+(.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Enclosure #" then disk[:location] = Regexp.last_match(2)
+          when "Slot #" then disk[:location] = "#{disk[:location]}:#{Regexp.last_match(2)}"
+          when "SAS Address" then disk[:device] = find_sas_device(Regexp.last_match(2).tr("-", ""))
+          when "Size (in MB)/(in sectors)" then disk[:size] = memory_to_disk_size("#{Regexp.last_match(2).split('/').first} MB")
+          when "Manufacturer" then disk[:vendor] = Regexp.last_match(2)
+          when "Model Number" then disk[:model] = 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 "Protocol" then disk[:interface] = Regexp.last_match(2)
+          end
+        elsif array && line =~ /^  PHY\[\d+\] Enclosure#\/Slot#\s+:\s+(\d+:\d+)\s*$/
+          array[:disks] << Regexp.last_match(1)
+        elsif array && line =~ /^  (\S.*\S)\s+:\s+(.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Volume wwid" then array[:device] = find_sas_device(Regexp.last_match(2))
+          when "RAID level" then array[:raid_level] = Regexp.last_match(2).sub(/^RAID/, "")
+          when "Size (in MB)" then array[:size] = "#{Regexp.last_match(2)} MB"
+          end
+        elsif line =~ /^  (\S.*\S)\s+:\s+(.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "BIOS version" then controller[:bios_version] = Regexp.last_match(2)
+          when "Firmware version" then controller[:firmware_version] = Regexp.last_match(2)
+          end
+        end
+      end
+
+      arrays.each do |array|
+        array[:disks].map! do |location|
+          disk = disks.find { |disk| disk[:location] == location }
+
+          disk[:arrays] << array[:id]
+          disk[:id]
+        end
+      end
+    end
+  end
+
+  def find_adaptec_disks(devices)
+    controller_count = IO.popen(%w(arcconf getconfig 0)).first.scan(/^Controllers found: (\d+)$/).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+)$/
+          array = {
+            :id => devices[:arrays].count,
+            :controller => controller[:id],
+            :number => Regexp.last_match(1).to_i,
+            :disks => []
+          }
+
+          devices[:arrays] << array
+          controller[:arrays] << array[:id]
+
+          arrays << array
+        elsif line =~ /^      Device #(\d+)$/
+          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*$/
+          disk[:channel_number] = Regexp.last_match(1)
+          disk[:device_number] = Regexp.last_match(1)
+        elsif disk && line =~ /^         (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          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" then disk[:serial_number] = 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 \(Controller:\d+,((?:Connector|Enclosure):\d+,(?:Device|Slot):\d+)\) /
+          array[:disks] << Regexp.last_match(1).tr(":", " ").gsub(",", ", ")
+        elsif array && line =~ /^   (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "RAID level" then array[:raid_level] = Regexp.last_match(2)
+          when "Size" then array[:size] = memory_to_disk_size(Regexp.last_match(2))
+          end
+        elsif line =~ /^   (\S.*\S)\s*:\s+(\S.*\S)\s*$/
+          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
+        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 }
+
+          device_number = disk[:device_number]
+          device = Dir.glob("#{host}/device/target*:1:#{device_number}/*:1:#{device_number}:0/scsi_generic/*").first
+
+          disk[:device] = "/dev/#{File.basename(device)}"
+
+          disk[:arrays] << array[:id]
+          disk[:id]
+        end
+      end
+    end
+  end
+
+  def find_areca_disks(devices)
+    controller = {
+      :id => devices[:controllers].count,
+      :arrays => [],
+      :disks => []
+    }
+
+    devices[:controllers] << controller
+
+    IO.popen(%w(/opt/areca/x86_64/cli64 sys info)).each do |line|
+      next unless line =~ /^(\S.*\S)\s+:\s+(.*\S)\s*$/
+
+      case Regexp.last_match(1)
+      when "Firmware Version" then controller[:firmware_version] = Regexp.last_match(2)
+      when "BOOT ROM Version" then controller[:bios_version] = Regexp.last_match(2)
+      when "Serial Number" then controller[:serial_number] = Regexp.last_match(2)
+      when "Controller Name" then controller[:model] = Regexp.last_match(2)
+      end
+    end
+
+    path = Dir.glob("/sys/bus/pci/devices/*/host*/scsi_host/host*/host_fw_model").find do |file|
+      read_sysctl_file(file) == controller[:model]
+    end
+
+    controller[:pci_slot] = File.basename(File.expand_path("#{path}/../../../.."))
+    controller[:device] = File.basename(Dir.glob(File.expand_path("#{path}/../../../target0:0:16/0:0:16:0/scsi_generic/*")).first)
+
+    arrays = []
+
+    IO.popen(%w(/opt/areca/x86_64/cli64 vsf info)).each do |line|
+      next unless line =~ /^\s+(\d+)\s+/
+      array = {
+        :id => devices[:arrays].count,
+        :number => Regexp.last_match(1),
+        :controller => controller[:id],
+        :disks => []
+      }
+
+      devices[:arrays] << array
+      controller[:arrays] << array[:id]
+
+      arrays << array
+    end
+
+    arrays.each do |array|
+      IO.popen(["/opt/areca/x86_64/cli64", "vsf", "info", "vol=#{array[:number]}"]).each do |line|
+        if line =~ /^SCSI Ch\/Id\/Lun\s+:\s+(\d+)\/(\d+)\/(\d+)\s*$/
+          pci_slot = controller[:pci_slot]
+          channel = Regexp.last_match(1).to_i
+          id = Regexp.last_match(2).to_i
+          lun = Regexp.last_match(3).to_i
+
+          device = Dir.glob("/sys/bus/pci/devices/#{pci_slot}/host*/target*:0:0/0:#{channel}:#{id}:#{lun}/block/*").first
+
+          array[:device] = "/dev/#{File.basename(device)}"
+        elsif line =~ /^(\S.*\S)\s+:\s+(.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Volume Set Name" then array[:volume_set] = Regexp.last_match(2)
+          when "Raid Set Name" then array[:raid_set] = Regexp.last_match(2)
+          when "Volume Capacity" then array[:size] = format_disk_size(Regexp.last_match(2).to_f * 1000 * 1000)
+          when "Raid Level" then array[:raid_level] = Regexp.last_match(2).sub(/^Raid/, "")
+          end
+        end
+      end
+    end
+
+    disks = []
+
+    IO.popen(%w(/opt/areca/x86_64/cli64 disk info)).each do |line|
+      next unless line =~ /^\s+(\d+)\s+.*\s+\d+\.\d+GB\s+(\S.*\S)\s*$/
+      next if Regexp.last_match(2) == "N.A."
+
+      disk = {
+        :id => devices[:disks].count,
+        :number => Regexp.last_match(1),
+        :controller => controller[:id],
+        :arrays => []
+      }
+
+      devices[:disks] << disk
+      controller[:disks] << disk[:id]
+
+      if array = arrays.find { |array| array[:raid_set] == Regexp.last_match(2) }
+        disk[:arrays] << array[:id]
+        array[:disks] << disk[:id]
+      end
+
+      disks << disk
+    end
+
+    disks.each do |disk|
+      IO.popen(["/opt/areca/x86_64/cli64", "disk", "info", "drv=#{disk[:number]}"]).each do |line|
+        if line =~ /^IDE Channel\s+:\s+(\d+)\s*$/i
+          disk[:smart_device] = "areca,#{Regexp.last_match(1)}"
+        elsif line =~ /^Device Location\s+:\s+Enclosure#(\d+) Slot#?\s*0*(\d+)\s*$/i
+          disk[:smart_device] = "areca,#{Regexp.last_match(2)}/#{Regexp.last_match(1)}"
+        elsif line =~ /^(\S.*\S)\s+:\s+(.*\S)\s*$/
+          case Regexp.last_match(1)
+          when "Model Name" then disk[:vendor], disk[:model] = Regexp.last_match(2).split
+          when "Serial Number" then disk[:serial_number] = Regexp.last_match(2)
+          when "Disk Capacity" then disk[:size] = format_disk_size(Regexp.last_match(2).to_f * 1000 * 1000)
+          end
+        end
+      end
+    end
+  end
+
   collect_data(:default) do
     hardware Mash.new
 
     hardware[:pci] = pci_devices
     hardware[:network] = network_devices
     hardware[:memory] = memory_devices
+    hardware[:disk] = disk_devices
   end
 end