Mac Pro Software Raid 0 Performance Rating: 7,3/10 3417 reviews
If you hear the term “RAID” and immediately think of World of Warcraft, then leave now and go back to your guild. In short, a RAID is a set of physical volumes configured via hardware or software to appear as one volume of data. In some cases, RAID arrays are used to increase the reliability of data storage by configuring multiple disks to mirror the same volume of data, so that if one drive fails, the others will be intact and accessible. When it comes to performance, however, something called a striped RAID is used, and this where things get fun, and a little bit risky. For a quick education on RAID you read this wiki article and learn more about their uses in data storage.
How To: Apple MacBook Pro RAID 0 Array with 2 Intel X25-M SSDs. In late 2008 I wrote about my experience using the first generation 80GB Intel X25-M SSD — my first SSD. I had to pay the early adopter tax for that SSD, so it cost me around 700. The speed boost alone justified the price to me. Fast-forward about a year and that SSD stopped working.
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Currently, my mid-2012 MacBook Pro is configured with a striped RAID using two 512GB SSDs, and the performance gains have been substantial:
BEFORE: Single Solid State Drive
After: Dual Solid State Drives in a Striped RAID
Mac Pro Software Raid 0 Performance Parts
- Dec 19, 2019 Supercharges Macs and PCs – ideal for Mac Pro 2019, Mac Pro 2012 or 2010, and PC towers Work faster – over 6,000MB/s real-world speed in RAID 0 OWC Aura P12 powered solutions – advanced PCIe.
- The OWC Mercury Elite Pro Dual houses two user-supplied drives that can be easily configured in RAID 0, RAID 1., span, or JBOD/independent modes via the easy-to-use RAID selector switch on the back, while USB 3.0 and Thunderbolt interfaces provide blazing fast access to your data.
App to convert speech to text in mac. To put these speed tests in more simple terms, going from a single SSD to the striped RAID configuration using two Solid State Drives gave me a 2.2x performance gain on Read speeds and a 4.3x performance gain on Write speeds. This is a massive performance gain that can be felt immediately; it only takes about 15 seconds to boot Yosemite on my mid-2012 MacBook Pro.
However, there is an element of risk to consider here before proceeding.
Using a striped RAID configuration means that you are twice as likely to have a drive failure, simply because you are relying on two disks to store your data and if one drive in a striped array fails, all of your data is lost. I've worked with nearly 100 SSDs at this point, and not one has failed or even been dead on arrival; however, knowing my chances of a drive failure are now doubled, I back-up my machine everyday, without fail.
Raid 0 Performance Gains
So, if you're still up for moving to a striped RAID, here's what you need to do…
- Back-up all of your data to an external drive using Time Machine or Super Duper.
- Make sure you have two SSDs successfully installed. If you haven't installed your second drive yet, read this.
- Boot up your Yosemite Installer. If you don't have a Yosemite Installer, read this.
- Run Disk Utility and follow this guide to making a Striped RAID.
- Install Yosemite to your RAID, and move your data back into place.
- Keep your RAID healthy and running blazing fast by enabling TRIM support.
I'm hopeful this article has helped to get you more up to speed on how to use RAID to improve your laptop's performance bring you to new levels.
Read more Tips and How To's like this one on TechCo.
This article was originally published on Random Nerds and authored by Joe Corbett. If you enjoyed it, visit Random Nerds for more great pieces.