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How To: Install Mac OS High Sierra 10.13 – RAID 0 Configuration

How To: Install Mac OS High Sierra 10.13 – RAID 0 Configuration

RAID 0 is a popular disk setup solution to achieve the fastest possible read and write disk speeds by splitting data between two or more hard drives. The latest version of Mac OS X High Sierra (10.13) does not allow you to simply install to any kind of RAID configuration. This has frustrated a lot of the Mac community.

 

In order to install the latest version of Mac OS X onto a RAID 0 slice, you must clone a copy of your Mac OS X installation straight to the RAID 0 drives (not a restore, such as Time Machine, which will not work). To accomplish this, you need an external hard drive and a copy of SuperDuper software in addition to your RAID 0 drives.

 

We will use the same Mac machine (that will use RAID 0) to perform all the steps below. This method uses hardware RAID and is not a software RAID. In addition, you will be able to install updates from the App Store normally using this method.

 

Note: We strongly recommend taking a full backup (Time Machine) to another drive just in case when performing these steps! Save yourself from an accident!

 

  1. Use SuperDuper to clone your existing copy of Mac OS to the external drive. If you want to a fresh copy of Mac OS High Sierra instead, clone a copy of a fresh install of High Sierra to the external drive using SuperDuper.
 

Note: Be sure to complete your SuperDuper clones on the same type of Mac you will install the RAID 0 configuration on. This is important because your Mac OS High Sierra clone will have drivers and system files specific to that machines hardware.

 

Superduper raid 0 copy high sierra mac

 

  1. Next, boot from the cloned external drive we created. Plug in the drive and hold down the option key and choose the external drive install media.
 
Mac os sierra boot option disk selection
 
  1. Now that we booted up from our external hard drive, we can manage our Mac’s internal hard drives and create our RAID 0 array. Remember to only create a RAID 0 array with the same model and capacity size drives.
 

Open Disk Utility in Applications -> Utilities and create your RAID 0 array shown below.





Go to File -> RAID Assistant

 

Mac disk utility raid assistant

 

Select Striped (RAID 0)

 

Mac disk utility raid 0 striped

 

 

Select your 2 internal hard drives to create the RAID array from

 

Mac disk utility add raid 0 disks

 

Name your single RAID drive. For Chunk size, choose a lower size if you will be using the RAID for regular needs (email/browsing/word processing.) For video editing, choose a higher chunk size.

 

Mac disk utility raid chunk size

 

Success screen appears

 

Mac disk utility raid created successfully

 

 

  1. Open SuperDuper and copy the external drive to your new RAID 0 drive.
 

The copy will complete successfully. Finally, go to System Preferences -> Startup Disk and select your new drive and restart. The first restart may take a little time as your boot files load for the first time.

 

You can confirm your successful RAID 0 in Disk Utility.

 

Mac os high sierra raid 0 disk utility

 


* Please use the comment form below to let us know if you experience issues, have questions, or can provide solution. We want and encourage feedback. *



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Comments

Ramon on Monday, 30 April 2018 03:25

So we can not use APFS to get Raid0 working on High sierra, right?

So we can not use APFS to get Raid0 working on High sierra, right?
Become The Solution on Monday, 30 April 2018 06:18

We built our RAID 0 with - Mac OS Extended (Journaled)

We built our RAID 0 with - Mac OS Extended (Journaled)
Ramon on Tuesday, 01 May 2018 04:29

Ok, thanks, I will try this weekend, with HFS of course.

Ok, thanks, I will try this weekend, with HFS of course.
Don on Thursday, 17 May 2018 06:03

THIS WILL NOT WORK. SIMPLY PUT RAID DOESN'T WORK YET ON HIGH SIERRA. I TRIED SEVERAL TIMES OVER SEVERAL HOURS. WHOEVER WROTE THIS ARTICLE DOESN'T KNOW WHAT THEY'RE SAYING OR DOING. DON'T WASTE YOUR TIME.

THIS WILL NOT WORK. SIMPLY PUT RAID DOESN'T WORK YET ON HIGH SIERRA. I TRIED SEVERAL TIMES OVER SEVERAL HOURS. WHOEVER WROTE THIS ARTICLE DOESN'T KNOW WHAT THEY'RE SAYING OR DOING. DON'T WASTE YOUR TIME.
Become The Solution on Thursday, 17 May 2018 07:47

Yes, it does work. You have to use the super duper method we outlined.

Yes, it does work. You have to use the super duper method we outlined.
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Sunday, 20 May 2018
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