I've used Stellar Data Recovery in the past and had really good luck with the product. * Repairing drive issues (disk first-aid). Example #1 creates a standalone root folder sure enough, but different from what Apple says, you cant mount over it, simply because unlike /tmp the permissions arent right for unprivileged users though granted, Apple does say its for enterprise NFS mounts and the like. (On my system, Finder actually managed to refresh a window in such a unique synthetically firmlinked path, but a developer whom I notified wasnt as lucky; tests with another file manager werent successful either.)

After First Aid, which ran for a few minutes before quitting and telling me it failed, and recommending I backup the drive, it no longer mounts, and its name even has disappeared. BTW did you know that Catalina has a backdoor as wide as Opra's fat tush just begging for a justification to get your device bricked remotely, some times for as little reasons as some random p0rn advert appearing on a webpage while your browsing netflix. And there are typos again that I only notice after posting. Thats why we are fighting hard for the Right to Repair. Thanks for the link and information, but to Alsoft I would say so what? Id also be fascinated to know the rate at which such errors occur in modern SSDs, which is something that Ive looked for, but simply cant find. Currently, that consists of a total of 11 TB across 7 SSDs, of which around 5 TB contains files.

I assume you have to manually compare and decide which version to keep (source or destination). Someone has some insider information? Thanks. Alsoft should not do it!!! APFS is proving to be a fine filesystem, but it (rather infamously) only checksums metadata, not file contents. When I checked It, I noticed several folders were missing. For Big Sur, Apple advises users to check from the bottom up, starting with APFS volumes, then containers, and finally disks.

Alsoft posted a new page regarding DiskWarrior and Big Sur compatibility. My brand new MacBook Pro M1 corrupted an APFS drive thats still fairly new and never gave me problems on my intel Mac. Second, I have also been looking for a replacement for Disk Warrior and happened to check the Stellar website. Repair APFS partition with damaged / zeroed-out header ; and ii) if the answer is that DiskWarrior 6 will be released for sure with 100% confidence (which would mean that Alsoft has all the required documentation to do it), should we expect it this year, next year, or in which timeframe (even if widely or wildly approximate; for instance, in five years, or whatever)? Accessibility. Thank you. The onus is on those who feel such maintenance utilities are necessary to provide objective evidence of any shortcomings in APFS which they feel such maintenance might address. Thanks for the interesting article.

IF I understand what Steve Gibson says about the new Spinrite 6.1 and the coming 7, it will detect degraded write (read?) I dont send those emails: WordPress does. What is needed is documentation at least as detailed as the one for the HFS+ filesystem. I do not know the answer to both questions, but searching Internet for, DiskWarrior APFS As those errors dont appear to occur in APFS, because it has been designed to prevent them, what purpose could routine use of DiskWarrior for APFS serve which cant already be catered for by Disk Utility and the tool which it uses, fsck_apfs? It would detect if source and destination dont match. Note that Tech Tool Pro works fine with the APFS format. No output is generated for matching checksums. Theyve had three and a half years to get into gear. This doesnt help hard disks, though. I appreciate the info and your expertise. All you've seen is the dialog and proposed laws, nothing has been made the law of the land.

Carbon Copy Cloner (CCC) and also the command line version of TimeMachine (tmutil) have checksumming / comparison features. Checking and repairing a volume doesnt detect such data errors, neither can it fix them. This problem has plagued Disk Utility since the release of High Sierra, but has now become a minor irritant rather than the major obstacle it once was. I've tested the drive itself in DRIVEDX and it has 100% health. Thanks. Wow! Thus, they are completely different applications. Howard. There is a lot of misinformation and confusion on this topic. There is no utility that can rebuild the directory of APFS disks yet.

At first the unmounting problem is worrying, but all you have to do is repeat the command. : ), Feb 18, 2020 by THEN AND ONLY THEN THE REPAIR UTILITIES WILL BE RELEASED TO REBUILD THE DIRECTORY OF APFS DISKS: https://www.apple.com/feedback/macos.htm First off, thank you for the information provided in the post above. However, this only verifies a backup against the original. So in short, you dont believe a word of this article? Howard. Thank you. https://www.stellarinfo.com/blog/how-to- Is "rebuilding" with Disk Warrior and "repairing" with Disk Utility the same? Apple should not do that!!! Rebuild utilities are not supported on APFS. Search the Internet for horror stories about it. This article considers where APFS is today in Big Sur, which has now reached version 1677.81.1. If you can tell me what those emails contain which is causing the problem, Ill be more than happy to raise it with support. Takes only a second and then eureka, the check proceeds.

underpaid? One thing Ive often wondered about SSD-based filesystems is that although seeking as a result of fragmentation no longer happens, the number of extents (or whatever the filesystem calls them) will continue to increase. The spinners are pretty much holding mainly read-only storage such as Music and Video libraries (quite large,) Virtual Machine archives (active ones are on SSD,) repo backups, and an installer archive. I havent needed to fix a APFS formatted HDD or SSHD drive so Im not sure if it will work. Id love to know what you think that might do with APFS on SSDs. It will still only support HFS+. Hence are not as efficient and safe as if the filesystem contained them natively and runs checksumming all time. @Tim I too would love if APFS would feature checksumming on file content not only metadata.

The HFS+ partition seems fine. Indeed, experience teaches that some of them may identify/repair issues not detected/repaired by other utility, including Disk Utilitys First Aid. Jan 29, 2020 by Given the three existing types of link/alias, I have quite enough to choose from (and mess up!). You are of course not referring there to scientific facts but what are known in the trade as unconfirmed anecdotal reports of file system errors. Once you get the drive fixed make a backup and then either run the defragment tool or reformat the drive and install a fresh OS onto it then recover your data from the backup (TimeMachine) being the better one. In a CCC clone task you have Advanced Settings > While Copying files > Find and replace corrupted files (this facilitates rsync checksum I assume). Very helpful. But regardless if any of this is true or really spread miss information to smear america its just shows the lack of trust people have with Apple and all these sketchy data recovery apps that require you to be online to use them.

He is a pro at it, for example, while with Jobs he was the one flying to China visiting child slave factories and arranging shipments of 3,4 quarter batches of devices to contain toxic cheap parts assembled by child slave factories., more cuts more profits and its true, Apple has been fined over and over and they dont mind paying the fines as Mr$ Crook has learned that paying the fines is also more profitable then recalls, paying class action law suites off etc cause Apple makes $350 million an hour from all this itself. Ill carry on in ignorance, happily using SSDs which work perfectly well. Dane Russell Fjelstad, Ali Sadykov Without those cumulative minor errors, theres no evidence that APFS suffers from that problem. But sometimes beginners are luckier. I have also mostly given up on DiskWarrior in favour of Tech Tool Pro although DW is still viable on Time Machine drives which are still HFS+ format. Much as what happens with mutations, which may accumulate, leading to cancer. However, Tech Tool Pro is the. I have absolutely no control over what it does with them. Begin typing your search above and press return to search. Is this a product you would consider purchasing or are you still holding out for Alsoft to update Disk Warrior? https://www.micromat.com/component/kunen Alsoft (DriveWarrior) is completely misleading and wrong: Using DiskWarrior 5.2 while started (booted) from High Sierra or Mojave. Clearly, they do not want to reveal the plain truth, since their living depends on that! firmlink a root directory of /System/Volumes/Data, FSEvents will report non-existing paths, i.e. @Fat Lip - If he still has the original disk then no. Kent, WA; about 25 miles south of Seattle, DiskWarrior 5.2 & Apple File System (APFS) ALSOFT, TouchArcade Game of the Week: Soccer Rally, SwitchArcade Round-Up: Xenoblade Chronicles 3, Digimon Survive, and Todays Other New Releases, News, and Sales, Phantom Blade: Executioners Lets Players Experience Revamped Stages and a New Character in Second Closed Beta Test, Kingdom Rush Vengeance+ Is This Weeks New Apple Arcade Release Alongside Big Updates for Oceanhorn 2, Taiko, Grindstone, and More, Spiderweb Softwares Queens Wish 2: The Tormentor Hits Desktop August 24th, iOS Version to Follow, SwitchArcade Round-Up: Azure Striker Gunvolt 3, Strange Horticulture, Plus Todays Other Releases and Sales, Hindsight from Prune Developer Joel McDonald is Launching on iOS, Switch, and Steam August 4th, Backbone One PlayStation Edition Officially Licensed Controller Now Available for iPhone. I think you should wait a until they come up with a newer version of their App, otherwise you will have to find other alternatives (which may be great, even perfect but not as perfect as DW). /bar instead of /System/Volumes/Data/barthe latter is the actual path, the former is just the firmlink, so when you modify, create or delete files in that *unique* synthetically linked root path, GUI file managers often (if not always) dont receive any correct path, so the contents of the current window or tab arent refreshed. IT IS IMPORTANT TO SEND FEEDBACK TO APPLE SO THAT THEY RELEASE DOCUMENTATION ABOUT HOW TO WRITE TO APFS DISKS AS THEY HAVE DONE ABOUT HOW TO READ THEM. No utility can fully support APFS at the moment, both because APFS is itself a work-in-progress, and Apple has yet to release documentation for it for developers. Our developers are now using that documentation to update DiskWarrior to be able to safely rebuild APFS disks. But if you activate it you can set it to: Every time the task runs | Once a week | Once a month. I still use the app to optimize directories for my HFS+ external drives. BTW i thought the RIGHT TO REPAIR movement already succeeded with new laws that will require manufactures to create innovative products that are mod like repairable (hard drives, cameras, memory upgrades etc) no? Disk Warrior is much better and efficient repairing damaged disks than Disk Utility, because only the former rebuilds from scratch the directory of HFS+ disks. Not a problem for meMailTrackerBlocker just blocks the tracking now. They still haven't updated this app in two years. One thing is how things are expected to work, and other how they actually work. Firmlinking works, of course, but if you follow Apples use case and create a unique root location, i.e. The movement is alive and well but it needs bodies behind it screaming at the local and regional politicians to alter the laws of the land. I use a few of these apps and I don't need be online to use them. Without breaking the NDA that they have with Apple, of course. -. HFS+, which APFS has all but replaced, was the successor to HFS, which in turn replaced the Macs original MFS in 1985. Worst of all, macOS versions above 10.12 Sierra re-format disks as APFS, so users are left in the cold. Sometimes, unexpected issues arise. Then, time will tell if it is useful. Lives nearby and can check if Rusty Little still works at Alsoft? How it resolves the conflict, I do not know. I do like the shared Volume feature, which makes disk management flexible. The work-around for Big Sur seems to be to do a check on the Media. Its not like they have any other product distractions, fiddling about with file systems is their raisin dtre. My guess is that such scenarios will be less common in APFS than in HFS+, since the formar us much, much, much robust than the latter, but that sometimes they will arise. They need to run extra and as oneshot actions. I can used a completely standard install with sealed system volume, SIP enabled, and Watch Unlock and Conintuity are all working. I had the drive plugged in my new MacBook and all of a sudden I got a message saying the drive kept disconnecting, which I thought was strange, since that didnt seem to be the case. Luckily, I saw it. There is a lot of confusion in this topic. Looking forward to DiskWarrior 6 (hopefully, within three to six months, as they said in Twitter), which will rebuild the directory of APFS disks. The files recorded checksum is invalid. As a result, in common with most file systems designed for hard disks, it defaults to overwriting data when changing it, notably in the file system metadata. Its not like they have any other product distractions, fiddling about with file systems is their raison dtre. Please help push it! Not only because competition is good, but also because it is convenient to have different tools in the disk troubleshooting arsenal. SR does not care about file systems at all, so APFS or not would make no difference. But says part of the truth in the small print: **Note:Optimization for APFS rotational drives is not yet possible with the current amount of APFS documentation provided by Apple, which currently provides insufficieant documentation for defragmenting a disk. You said its primarily designed for use with SSDs, for which seek times and fragmentation arent a concern. TIMEMACHINE s command line version diskutil has the verifychecksums verb. Yes, DiskWarrior is a solution to a known shortcoming in HFS+. That includes DiskWarrior (the best in the repair arsenal), TechTool Pro (second choice) and Drive Genius (third choice). Should anything go wrong while changing file system data, such as a crash or even worse a kernel panic, thats likely to leave the file system metadata with a mixture of the old and new, resulting in an error. What you are seeing is the seeds of our efforts sprouting! Catalina, together with the APFS file structure, has been a NIGHTMARE.

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