How to customize the new SSD-drive in OS X Yosemite

How to install OS X Yosemite, optimize the OS to work on the SSD-drive and it does not pile up a lot of mistakes - read about it in our guest post.

The author of this material - a regular reader Layfhakera Karim Musaev.

Recently, Apple finally granted access to the final release OS X Yosemite, and I, along with the OS upgrade has decided to increase the RAM in my Macbook Pro with 4 GB to 8 and replace the conventional hard drive to the SSD-drive, because the "old man" in 2010 would have been too much hindered in the new OSes. Choice stopped on the model of Crucial MX100, which is the ratio of price / performance is one of the best at the moment. OS installation took about 12 minutes and I started to optimize the OS to SSD-drive. And immediately led OS inoperable. To understand the reasons and still achieving the goal after re reinstall the system, I decided to write this short post, so you do not repeat my mistakes and were able to quickly adjust to the Yosemite SSD.

Problem

Long time to describe all the actions that I made a, and that led to a problem does not make sense to say that instructions on how to optimize the previous version of OS X for SSD can be found on dozens of websites that I advantage. And the first and obligatory action - the inclusion of TRIM through the terminal - EQS OSes: after a reboot I was waiting for the gray screen with a crossed circle in the center. Has launched a new installation of the operating system and the next 12 minutes spent in the search for causes of the problem. It turned out, Apple introduced the so-called Yosemite signed driver (kernel extension), and if the system under test reveals in the core unsigned driver, simply block the loading of the operating system. It is bad news.

Decision

And now the good news, even very good. Firstly, the problem is solved, secondly, the problem is not solved by dancing with a tambourine from a command line at the terminal, while using a small utility. So, meet - Chameleon SSD Optimizer. Download the program and run the link. Before starting it is necessary to allow the installation of programs not from App Store: go to the "System Settings» → "Protection and Security", click on the padlock icon at the bottom left and put a tick next to the item "Any source. "

Start the Chameleon and see the main window:

First unlock program access to system functions by clicking on the lock icon and enter your password. Then translate TRIM switch active state. The first time the program will ask to reboot to disable unsigned drivers test function. Restarting again in the Chameleon program includes TRIM mode. After you enable this mode, you must reboot the system again.

Now you need to adjust a few settings of the operating system. Turn Chameleon and go to the Settings section.

1. Turning off the motion sensor Sudden Motion Sensor, since there are no moving discs and heads and need not be secure "parking" in the SSD-drive.
2. Noatime includes functions, to prevent the entry's last access time to the file that, as you know, reduces the disk resource.
3. Sleep Set Sleep Mode is translated in mode A, that every time you close the lid of laptop RAM contents are not recorded on the disc.
4. Include a ban the creation of a core in Sleep Mode Disable Sleep Image.

To enable / disable some items may require a reboot.

And finally, there are still two options.

Go to the "System Settings» → «Energy Saving" and remove the check from the option "Is it possible to translate drives into sleep mode "(you must do this as a tab" Battery "and the tab" Network adapter").

Then go to the "System Settings" → Spotlight, tab "Privacy", and add all partitions SSD-drive as an exception by clicking "+" sign. Of course, this will not instantly search for information on the disk, but the constant indexing of files greatly reduces the life of SSDs.

In this set-up and optimization of OS X Yosemite for SSD-disk is finished.