greenbytes logoEarlier this week, we reported that the ZEVO solution for bringing the ZFS file system to the Mac had been acquired by storage appliance company GreenBytes. With ZEVO having been pulled from sale with the transition, the future of ZFS on the Mac has been in question, although GreenBytes indicated at the time that it was still committed to the project.

GreenBytes has now announced that it will be launching a free "Community Edition" of ZEVO on September 15.

We wanted to take a few days to nail down the specifics, but we are happy to announce that beginning on September 15, 2012, GreenBytes will offer the ZEVO Community Edition as a freely downloadable binary!

As we approach the September 15th launch date, we will reveal more details about the functionality in the ZEVO Community Edition -- and you should expect enhancements from the prior commercial version!

Support for the new Community Edition will be handled through discussion forums, with forum members and GreenBytes staff helping users of the free edition there.

Don Brady, the former Apple engineer who worked on ZFS at the company before leaving to develop the project on his own after Apple canceled it, will be providing more information on GreenBytes' plans for ZEVO in upcoming posts on the company's blog.

Top Rated Comments

Glassed Silver Avatar
175 months ago
Give me native ZFS for Pete's sake!

I feel horrible when I check my disk for errors and it "fixes" something to broken files. (I know it doesn't damage them, bitrot does, but the file size meta data is updated to reflect that painful pity that's not necessary)

What's worse than not having good technology?
Having good technology ready in front of you, but not being given to you.

I think "community support" is just way to edgy for me, give me full support backed by the biggest tech company in the world.
I'm not asking for super high transfer speeds, heck, I even acknowledged that with the prices going for Thunderbolt hardware, it renders my Thunderbolt ports useless.
I can live with that, but I'm not asking for something that should be luxury.
I'm asking for file integrity, should be in the top 10 list of things that go without saying for "the world's most advanced desktop OS". :(

Glassed Silver:mac
Score: 6 Votes (Like | Disagree)
waloshin Avatar
175 months ago
Unless it's bootable it's going to be useless for most people

Linux can boot Zfs there should be no reason why Mac OSX can't.
Score: 3 Votes (Like | Disagree)
Makosuke Avatar
175 months ago
ZFS provides some cool stuff in single-drive configurations that I'm interested in for my home server's data volume (for which I could care less if it's bootable, so long as Spotlight can index it, which was a weakness in past Mac ZFS implementations). I'm most interested in RAID-Z, though--it's essentially a pure-software implementation of a similar RAID system to what Drobo uses in their boxes, or a much more advanced RAID-5/6-like system.

If it works as well as the proponents claim it does, it's nearly ideal for a moderate-sized multi-drive home/small business server, where you could RAID-Z, say, 4-6 external drives together into one big 10TB pool of disks with 1-2 drives of redundancy and auto-versioning backups. You'd still want a secondary backup copy of anything truly important, of course, but it would offer a degree of data protection from hardware failure and software corruption you don't really get (again, in theory) from just a hardware RAID5 implementation.

I've had my eye on the announced-but-never-shipped Ten's Complement RAID-Z tier for a while, so now I'm wondering if this new free version will include that as a feature, or if they're dropping it entirely. I can't say I'm optimistic, but who knows.
Score: 2 Votes (Like | Disagree)
milo Avatar
175 months ago
Do you mean data access or safety from failing? I had a few HDD fail on me. When they failed, the BIOS could not detect them anymore about 1-2 weeks after start of problems. For me, that meant: Backup ASAP. No way a different file system would help that.
Well, I take that back. I had erronious sectors once.
File system isn't going to help with complete drive failures, ZFS helps with corrupted bits. It has some checksumming features that can detect and correct (at least in some cases) bad data. The problem with HFS is if bits go bad you won't know about it until the system tries to read and copy them and fails. In the case of data files, if the corrupted data can be read and copied, it will just back up the bad data, which is useless.

Like others have said, Apple just needs to adopt ZFS (or at least create their own equivalent version of it).

And I disagree that it's useless if it can't be booted, in my case the data I care most about is on secondary drives anyway.
Score: 2 Votes (Like | Disagree)
Riverrun Avatar
175 months ago
Bootable or not, ZFS would be ideal for storage and backup purposes, I think.

Data protection is a major advantage for any Mac user and having a file system that can protect the integrity of data files can only be a benefit. I will certainly be trying it out.
Score: 2 Votes (Like | Disagree)
Rudy69 Avatar
175 months ago
Unless it's bootable it's going to be useless for most people
Score: 2 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected [Updated]

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
macOS Tahoe 26 Thumb

Apple Releases macOS Tahoe 26.2 With Edge Light

Friday December 12, 2025 10:08 am PST by
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1. Mac users can download the macOS Tahoe update by using the Software Update section of System Settings. macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...