etc/Mac/com.Galaxy.KeepDisk1Spinning.plist

   1 <?xml version="1.0" encoding="UTF-8"?>
   2 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   3 <plist version="1.0">
   4 <dict>
   5         <key>Label</key>
   6         <string>com.Galaxy.KeepDisk1Spinning</string>
   7         <key>ProgramArguments</key>
   8         <array>
   9                 <string>bash</string>
  10                 <string>-c</string>
  11                 <string>while (sleep 7);do hexdump -n4095 -C /dev/disk1 &gt;/dev/null;done</string>
  12         </array>
  13 <!--
  14 while (sleep 0.5);do /usr/local/sbin/smartctl --attributes disk1|egrep 'Cycle|Temperature_Celsius|Start_Stop_Count';date;done
  15 while (sleep 7);do sudo hexdump -n4095 -C /dev/disk1|head;date;done
  16 # No need to sudo as we are already root.
  17 while (sleep 7);do hexdump -n4095 -C /dev/disk1 &gt;/var/log/KeepDisk1Spinning.log;date &gt;&gt;/var/log/KeepDisk1Spinning.log;done
  18
  19         <key>StandardOutPath</key>
  20         <string>/var/log/KeepDiskSpinning.log</string>
  21
  22 ### Put me in /Library/LaunchDaemons/ as it is "System-wide daemons provided by the administrator". Remember to "sudo chown root:wheel".
  23 ### sudo launchctl load /Library/LaunchDaemons/com.Galaxy.KeepDisk1Spinning.plist
  24 ### ll /var/log/KeepDisk* && tail -3 /var/log/KeepDisk1Spinning.log
  25
  26 # Even set to 5s, the real interval is 10s.
  27         <key>StartInterval</key>
  28         <integer>7</integer>
  29 -->
  30         <key>KeepAlive</key>
  31         <true/>
  32 </dict>
  33 </plist>
  34