All Posts by Date or last 15, 30, 90 or 180 days.
also by Lloyd: diglloyd.com photography and WindInMyFace.com
Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Up to 1527MB/s sustained performance

Performance of 'Fusion' Drive (OWC Accelsior 480GB PCIe SSD + 2TB HDD)

After setting up the Fusion drive (480GB OWC Accelsior PCIe SSD + 2TB hard drive), I tested it by writing 256GB of files to it.

The OWC Accelsior PCIe SSD looks like an IDEAL choice for making a Fusion drive. It can be used in a Mac Pro PCIe slot, or with any Mac having Thunderbolt by installing it into a OWC Helios external case.

UPDATE: careful testing shows ZERO benefit either with the Accelsior PCIe SSD or with a SATA SSD (these are both non-Apple configs, no comment here on Apple’s official setup). All that is seen with non-Apple SSD+HDD fused drives so far is simple, dumb JBOD behavior: SSD fills up, overflows to hard drive, thereafter speeds are hard drive speeds, no migration of files occurs.

Testing was on a Mac Pro. Could it be that the feature has certain requirements?

  • Perhaps it has to be the latest chipset from Intel?
  • Perhaps the SSD has to be on a SATA III port (Mac Pro is only SATA II).
  • Is the version of 'diskutil' used different than that shipped with Fusion-enabled Macs? (the version from 10.8.2 was used for testing).

Researching— a 2012 MacMini will arrive tomorrow.

Read more.

Write speed with a PCIe SSD + hard drive fusion volume
Fusion volume speed — 256GB on 480GB SSD + 2TB hard drive
Apple 15-inch MacBook Pro
Only $4199 $2299

16GB / 2TB SSD / 2.9GHz / 4GB GPU

Apple Refurbished, Factory Sealed
Apple 1 Year Limited Warranty

OWC Thunderblade Thunderbolt 3 SSD
Gen 2!

Blazing fast, 1TB, 2TB, 4TB, 8TB.

Lloyd’s all-time favorite SSD!

√ No more slow and noisy hard drives!

Deals Updated Daily at B&H Photo
View all handpicked deals...

Apple 15.4" MacBook Pro with Touch Bar (Mid 2018, Space Gray)
$6299.0 $4199
SAVE $2100

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__