1 minute reading time (160 words)

Yosemite Auto-Converts to Core Storage

A big thank you to Kevin White on clearly explaining this change....

Only Macs with AES-NI (Advanced Encryption Standard New Instructions) will auto convert to Core Storage when you upgrade to Yosemite. 

(Apparently some older MacBooks cannot use hardware encryption, so making it easier for them to enable FileVault would be the wrong thing to do.)

Yosemite uses a volume format known as Core Storage. It is the enabling technology behind Fusion Drive and FileVault.

Core Storage is a reliable, high-performance volume format. It provides increased crash protection, ditto blocks for metadata, copy-on-write B-tree catalogs, in-place transformations for backgrounding the disk encryption used by FileVault, and intelligent block-level data migration used by Fusion Drive.

When you install OS X Yosemite, existing HFS+ volumes are converted to Core Storage. Using Core Storage allows Yosemite to improve storage reliability, and makes it easy to enable FileVault without requiring a reboot.

This command will tell you if your CPU supports AES-NI.

sysctl -a machdep.cpu | grep AES

3
How to remove persistent dock apps in OS X Yosemit...
Server changeip Command is still around
 
Locations
New York
ConnecticutFloridaLouisianaChicago 

Tel: (866) 518-9672

Corporate Headquarters
New York

3900 Veteran's Memorial Hwy. Suite 110
Bohemia, NY 11716
Tel: (866) 518-9672
hcs-ny@hcsonline.com

Connecticut

65 High Ridge Road #510
Stamford, CT 06905
Tel: (866) 518-9672
hcs-ct@hcsonline.com

Florida

3321 SW 194th Terrace
Miramar, FL 33029
Tel: (866) 518-9672
hcs-fl@hcsonline.com

Louisiana

218 Barksdale Drive
Broussard LA 70518
hcs-la@hcsonline.com

Chicago

4 Knollwood Place
Joliet, IL 60433
hcs-il@hcsonline.com

London

10 Grosvenor Court
Rayners Road
London SW15 2AX UK

Apple Consultants Network