Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Upgrade the memory of your 2018 Mac mini up to 64GB
GET THE BEST DEALS
Top deals pages updated daily for Sony, Nikon, Canon, Apple, many more!
Instant rebates, Black Friday deals, etc
OWC Thunderbolt 3 Dock
Must-have expansion for iMac/MacBook Pro/Mac mini
Thunderbolt 3 • USB 3 • USB-C • Gigabit Ethernet • Dual Thunderbolt 3 Ports
4K Support • Mini Display Port • Analog sound in/out • Optical sound out
Works on any Mac with Thunderbolt 3


Are Two Drives 'Fused' as Reliable?

Last updated 2012-12-16 - Send Feedback
Related: storage

More complexity, especially with data storage, implicitly carries a negative implication in terms of reliability (excluding RAID redundancy), and possible bugs at all levels.

Apple quality standards are high, and one can expect the Fusion technology to be quite reliable; Apple surely has no wish to support technology that is not highly reliable.

It is also fair to say that a Mac with a Fusion drive has its own reliability characteristics which cannot be as high as a single drive, but might nonetheless prove to more than reliable enough so that the difference is of no real significance. Most users who want it to just work without regard to the underlying technology will find this proposition quite acceptable.

What two fused drives

With the Fusion drive, if either drive fails, then the Fusion volume dies.

How much less reliable is this approach? With good engineering, perhaps still far beyond the concern of most users. Over time, the relative reliability of a two drive Fusion volume will emerge.

Up to 1527MB/s sustained performance

Complexity

A Fusion drive does not come without some downsides.

As pointed out in the Apple tech note:

  • “ Earlier versions of Disk Utility can't be used with a Fusion Drive.”
  • Limit of one partition, and the Fusion drive functionality is not available for the 2nd partition.
  • Unclear whether one can swap in a larger or faster drive to replace the Apple OEM hard drive.
  • “Third party disk utilities may or may not work with a Fusion Drive”.
  • “ the system attempting to mount the Fusion Drive in Target Disk Mode must have OS X Mountain Lion version 10.8.2 or later”.

Casual users won’t care about any of this; when the thing breaks it will be careted over to the Apple Store. And if appropriate backups are kept, one has it fixed, then resumes.

Cycling
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 92 min unless noted. Certain deals may last longer.
$797 SAVE $350 = 30.0% $59 FREE ITEMS Nikon D5600 DSLR with 18-55mm and 70-300mm Lenses in Cameras: DSLR
$1099 SAVE $300 = 21.0% $249 FREE ITEMS Sigma 70-200mm f/2.8 EX DG APO OS HSM in Lenses: DSLR
$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2008-2017 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__