Setup: SSD tweaks script.

setup/ssd.sh

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+#!/bin/bash
+
+# Some tweaks for SSD drives
+# Details: http://blog.alutam.com/2012/04/01/optimizing-macos-x-lion-for-ssd/
+ 
+# Ask for the administrator password upfront
+sudo -v
+
+# Turn off local Time Machine snapshots [laptops only]
+sudo tmutil disablelocal
+
+# Turn off hibernation [laptops only]
+sudo pmset -a hibernatemode 0
+sudo command rm /var/vm/sleepimage
+
+# Turn off sudden motion sensor [no HDD only]
+sudo pmset -a sms 0
+
+# Disable records last access time for every file
+echo '<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+	<dict>
+		<key>Label</key>
+		<string>com.nullvision.noatime</string>
+		<key>ProgramArguments</key>
+		<array>
+			<string>mount</string>
+			<string>-vuwo</string>
+			<string>noatime</string>
+			<string>/</string>
+		</array>
+		<key>RunAtLoad</key>
+		<true/>
+	</dict>
+</plist>' | sudo tee /Library/LaunchDaemons/com.nullvision.noatime.plist
+sudo chown root:wheel /Library/LaunchDaemons/com.nullvision.noatime.plist
+
+# Delay (180 minutes) hard drive sleep [no HDD only]
+sudo pmset -b disksleep 180  # Battery
+sudo pmset -c disksleep 180  # Power adapter
+
+
+echo
+echo "You need to restart your computer for the changes to take effect."