• 消費電力の計測にはF1205-20-4PというACアダプタを使用

IntelliPark

• ​WD WD20EARSの正しい扱い方 - (rubikitch loves (Emacs Ruby CUI Books))
• ​intellipark 対応をしてみる

  そこで、「intellipark」回避用のシェルを作成してみました。

  #!/bin/bash
  
  trap '' SIGHUP
  trap '' SIGINT
  
  
  function loopAction() {
          while true;do
                  date > /tmp/disable-intellipark;
                  sleep 5;
          done
  }
  
  loopAction &
  

• ​wdidle3 | GALACTIC FUNK

  • ​What should I do if my Western Digit... - FAQ - Synology Inc. Network Attached Storage - NEW NAS Experience
  • ​The S.M.A.R.T Attribute 193 Load/Unload counter continue to increase for the WD RE2-GP SATA II hard drives

3.5

• Hitachi HDP725050GLA360

  /dev/sda:
   Timing cached reads:   2056 MB in  2.00 seconds = 1028.11 MB/sec
   Timing buffered disk reads: 266 MB in  3.01 seconds =  88.24 MB/sec
  

  • 13VA/7W
• WDC WD5000AACS-00ZUB0

  /dev/sdc:
   Timing cached reads:   2044 MB in  2.00 seconds = 1022.36 MB/sec
   Timing buffered disk reads: 236 MB in  3.00 seconds =  78.58 MB/sec
  

  • 10VA/7W,5W
• ST3500320AS

  /dev/sdd:
   Timing cached reads:   1996 MB in  2.00 seconds = 997.74 MB/sec
   Timing buffered disk reads: 306 MB in  3.02 seconds = 101.45 MB/sec
  

  • 15VA/8W
• HDT725050VLA360
  • 16VA/10W
• WDC WD3000JD-22KLB0

  /dev/sda:
   Timing cached reads:   1978 MB in  2.00 seconds = 989.19 MB/sec
   Timing buffered disk reads: 188 MB in  3.01 seconds =  62.52 MB/sec
  

  • 15VA/9W
• WD30EZRX-00MMMB0
  • 9VA/5W

2.5

• HITACHI IC25N020ATMR04-0
  • IDE 4200rpm 20GB
• FUJITSU MHV2100AH
  • IDE 5400rpm 100GB

      5 Reallocated_Sector_Ct   0x0033   100   100   024    Pre-fail  Always       -       1 (1999, 1)
    

  • no badblocks
  • hdparm -tT

    /dev/sda:
     Timing cached reads:   908 MB in  2.00 seconds = 453.88 MB/sec
     Timing buffered disk reads: 114 MB in  3.03 seconds =  37.59 MB/sec
    

• Hitachi HTS541612J9AT00 120GB
  • SMART

    # 1  Extended offline    Completed: read failure       90%       407         24474713
    

  • hdparm -tT

    /dev/sdb:
     Timing cached reads:   946 MB in  2.00 seconds = 472.53 MB/sec
     Timing buffered disk reads: 100 MB in  3.03 seconds =  32.96 MB/sec