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Fusion Drive For Mac Mini 2012

7/23/2021
  1. Mac Fusion Drive Vs Ssd
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SNAPSHOT: Apple's Fusion Drive's speed
versus the alternatives

Originally posted Wednesday, November 7th, 2012, by rob-ART morgan, mad scientist

The Apple Fusion drive is now a CTO option on the (late 2012) Mac mini and (late 2012) iMac. We have some preliminary speed test data to share with you. We compare it to five alternative storage options.

Intech's QuickBench - The Custom Sequential Test (1024MB) to get a quick snapshot of the large block transfer speed of various drives compared to the Apple Fusion drive. (HIGHEST number means the FASTEST in megabytes per second.)

GRAPH LEGEND
MP Fusion = 'home grown' Fusion volume on the 2010 Mac Pro 6-core created using an OWC Mercury Extreme Pro 120GB SSD mounted the Apricorn Velocity x2 PCIe card and a Hitachi 7K3000 2TB HDD connected to the HighPoint RocketCache x8 PCIe card
OWC SSD = OWC Mercury Extreme Pro 240GB SSD (upgrade to 2012 mini sold by OWC)
factory SSD = 2012 Mac mini with the Apple 256GB SSD CTO option
factory Fusion = 2012 Mac mini with the Apple Fusion 1TB drive CTO option
7K HDD = Hitachi 7K3000 7200rpm 2TB HDD connected to a 6Gb/s host adapter (to represent a typical fast 7K Hard Disk Drive)
factory HDD = Apple's factory 'stock' 5400 rpm 1TB HDD for the 2012 Mac mini Core i7

ANALYSIS
We plan to expand on this topic as well as alternatives to the Fusion but suffice to say that the performance of the Apple Fusion drive is impressive and promises the best of both storage worlds: speed and space.

It's also nice to know that you can 'roll your own' Fusion volume on the Mac Pro like we did. But is that something you really should do? Is there any downside? Lloyd Chambers argues that, 'The 'Fusion' option isn’t just a poor value— it actively reduces the robustness, reliability and versatility of the Mac Mini.'

SPECIAL THANKS to Other World Computing test lab for helping provide test results for this article. Check out their memory and storage upgrades for all models of Mac mini.

MUST READ
For expanded discussions of the Fusion drive, how it works, and how you can create your own, click these links:

Anandtech's 'Understanding Apple's Fusion Drive'

Where is my wpa2 password. JollyJinx's 'Fusion drive on older Macs? YES!

ArsTechnica 'Fusion Drive: How it works and how to roll your own.'

MacPerformanceGuide's 'Dual Drives Are Better than Fusion'

Apple's FAQ on the Fusion drive for (late 2012 Mac mini and (late 2012) iMac

ArsTechnica tears apart the Fusion drive

Feedback or comments? Contact me , mad scientist.
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'BARE facts on Macintosh speed FEATS'
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Fusion Drive is Apple Inc's implementation of a hybrid drive. Apple's implementation combines a hard disk drive with a NAND flash storage (solid-state drive of 24 GB or more)[1] and presents it as a single Core Storage managed logical volume with the space of both drives combined.[2]

Make Offer - Apple Mac Mini 2014/8Gb/2.8Ghz/Intel i5/1TB Fusion hard drive/keyboard/trackpad. MAC MINI [email protected] 8GB DDR3 1600 RAM 60GB/500GB FUSION DRIVE + POWER CORD $550.00.

The operating system automatically manages the contents of the drive so the most frequently accessed files are stored on the faster flash storage, while infrequently used items move to or stay on the hard drive.[3] For example, if spreadsheet software is used often, the software will be moved to the flash storage for faster user access. In software, this logical volume speeds up performance of the computer by performing both caching for faster writes and auto tiering for faster reads.

  1. Apple Mac mini, 2.8GHz Intel Core i5 Dual Core, 8GB RAM, 1TB Fusion Drive, Mac OS, Silver, MGEQ2LL/A (Newest Version) (Renewed) 4.0 out of 5 stars 20 $709.87 $ 709.
  2. When Apple first launched the Fusion Drive back in 2012 the SSD component was 128GB. Rather disappointingly, back in 2015 Apple reduced the flash component in.

Availability[edit]

The Fusion Drive was announced as part of an Apple event held on October 23, 2012, with the first supporting products being two desktops: the iMac and Mac Mini with OS X Mountain Lion released in late 2012.[3] Fusion Drive remains available in subsequent models of these computers, but was not expanded to other Apple devices: the latest MacBook and Mac Pro models use exclusively flash storage, and while this was an optional upgrade for the mid-2012 non-Retina MacBook Pro discontinued by Apple, it will replace the standard hard disk drive instead of complementing it in the fashion of Fusion Drive. Supported products have the following configurations:

Release dateHDD storageFlash storage
Mac MiniLate 20121 TB128 GB
Late 2014
iMac
(all models)
Late 2012
Late 2013
2014
iMac
(27-inch non-Retina)
Late 20123 TB
Late 2013
iMac
(27-inch Retina)
Late 2014
Mid-2015
iMacLate 20151 TB24 GB
2 TB128 GB
Mid 20171 TB32 GB
2 TB128 GB
3 TB
Early 20191 TB32 GB
2 TB128 GB
3 TB
iMac
(21.5-inch)
Late 20201 TB32 GB

Design[edit]

Apple's Fusion Drive design incorporates proprietary features with limited documentation. It has been reported that the design of Fusion Drive has been influenced by a research project called Hystor.[4] According to the paper,[5] this hybrid storage system unifies a high-speed SSD and a large-capacity hard drive with several design considerations of which one has been used in the Fusion Drive.

  1. The SSD and the hard drive are logically merged into a single block device managed by the operating system, which is independent of file systems and requires no changes to applications.
  2. A portion of SSD space is used as a write-back buffer to absorb incoming write traffic, which hides perceivable latencies and boosts write performance.
  3. More frequently accessed data is stored on the SSD and the larger, less frequently accessed data stored on the HDD.
  4. Data movement is based on access patterns: if data has been on the HDD and suddenly becomes frequently accessed, it will usually get moved to the SSD by the program controlling the Fusion Drive. During idle periods, data is adaptively migrated to the most suitable device to provide sustained data processing performance for users.

Several experimental studies[3][6][7][8][9][10] have been conducted to speculate about the internal mechanism of Fusion Drive. A number of speculations are available but not completely confirmed.

  1. Fusion Drive is a block-level solution based on Apple's Core Storage, a logical volume manager managing multiple physical devices.[6][7] The capacity of a Fusion Drive is confirmed to be the sum of two devices.[6][7] Fusion Drive is file system agnostic and effective for both HFS Plus and ZFS.[8]
  2. Part of the SSD space is used as a write buffer for incoming writes.[6][7] In the stable state, a minimum 4 GB space is reserved for buffering writes.[3][6][7] A small spare area is set aside on the SSD for performance consistency.[7]
  3. Data is promoted to the SSD based on its access frequency.[6][7] The frequency is detected at the block level [9] and below file system memory cache.[10] Data migration happens in 128 KB chunks during idle or light I/O periods.[6][7]
  4. Operating system and other critical documents are always cached on the SSD.[6] Applications are likely to be handled similarly.[7] A regular file can reside on both devices.[9]

See also[edit]

Mac fusion drive vs ssd
  • bcache, dm-cache, and Flashcache on Linux
  • Smart Response Technology — a similar technology from Intel (for desktops)
  • ExpressCache — used on a number of Wintel laptops
  • ZFS - A file system using similar technology

Mac Fusion Drive Vs Ssd

References[edit]

Replace Fusion Drive Mac Mini 2012

  1. ^Dominguez, Alberto (3 January 2019). 'The best desktop computers of 2018'. Pandora FMS. Archived from the original(html) on 3 January 2019. Retrieved 3 January 2019.
  2. ^Hutchinson, Lee (October 23, 2012). 'Apple Fusion Drive—wait, what? How does this work?'. Ars Technica. Condé Nast. Retrieved October 25, 2012.
  3. ^ abcdShimpi, Anand Lal (October 24, 2012). 'Understanding Apple's Fusion Drive'. AnandTech. Retrieved October 25, 2012.
  4. ^'Computer Science Research at Ohio State Makes Impact in Apple's Hybrid Storage Product'. www.cse.ohio-state.edu. 2013-04-08.
  5. ^'Hystor Proceedings of the international conference on Supercomputing'. doi:10.1145/1995896.1995902. S2CID207188516.Cite journal requires journal= (help)
  6. ^ abcdefgh'Achieving fusion—with a service training doc, Ars tears open Apple's Fusion Drive'. www.arstechnica.com. 2012-11-05.
  7. ^ abcdefghi'A Month with Apple's Fusion Drive'. www.anandtech.com. 2013-01-18.
  8. ^ ab'Fusion Drive - loose ends'. jolly.jinx.de/. 2012-10-31.[unreliable source?]
  9. ^ abc'More on BYO Fusion drive'. jolly.jinx.de/. 2012-10-31.[unreliable source?]
  10. ^ ab'Fusion Drive last words'. jolly.jinx.de/. 2012-11-04.[unreliable source?]

External links[edit]

DriveFusion Drive For Mac Mini 2012
  • Fusion Drive – Apple's description
  • Fusion Drive – Apple Knowledge Base article

Fusion Drive For Mac Mini 2012 Upgrade

Apple fusion drive

Fusion Drive For Mac Mini 2012 2

Retrieved from 'https://en.wikipedia.org/w/index.php?title=Fusion_Drive&oldid=978075993'