Optimizing MacOS X Lion for SSD

optimizeSSD.sh

#!/bin/bash

# +---------------------------------------------------------------------------+
# |                                                                           |
# |  A shellscript inspired by                                                |
# |  By Martin Matula <http://blog.alutam.com/>                               |
# |  In <http://blog.alutam.com/2012/04/01/optimizing-macos-x-lion-for-ssd/>  |
# |                                                                           |
# |  Mount the root file system / with the option noatime                     |
# |  By Philipp Klaus <http://blog.philippklaus.de>                           |
# |  Tip found on <http://blogs.nullvision.com/?p=275>                        |
# |                                                                           |
# +---------------------------------------------------------------------------+

echo "Turning off local Time Machine snapshots ..."
sudo tmutil disablelocal

echo "Turning off hibernation ..."
sudo pmset -a hibernatemode 0

echo "Setting noatime flag ..."
cat << EOF | sudo tee /Library/LaunchDaemons/noatime.plist > /dev/null
<?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>
EOF
sudo chown root:wheel /Library/LaunchDaemons/noatime.plist

echo "Verifying if noatime works ..."
mount | grep " / " /dev/disk0s2 on / (hfs, local, journaled, noatime)

echo "Setting RAM disk for temporary files [no HDD only] ..."
wget https://raw.github.com/gist/931579/1cc6a21fd594967320935c6c98289cff4cd7caf6/MoveTemporaryFoldersToRamdisk_MacOSX.sh
chmod 755 MoveTemporaryFoldersToRamdisk_MacOSX.sh
./MoveTemporaryFoldersToRamdisk_MacOSX.sh

echo "Turning off sudden motion sensor [no HDD only] ..."
sudo pmset -a sms 0

echo "Turn off hard drive sleep by going to System Preferences->Energy Saver, uncheck “Put the hard disk(s) to sleep when possible”"

echo "Use Trim Enabler: http://groths.org/trimenabler/TrimEnabler.dmg"