So far my main use for backups have been recovering files accidentally deleted and serving as a source for migrations when I get a new computer. It found some discrepancies with some parity checks in snapshots and fixed them. I definitely run it before doing major system upgrades.įor example, last week, before upgrading my desktop to Catalina, I ran the repair utility. I don’t run independent programs, but I do run the Disk Repair section of Disk Utility from the Recovery partition every so often. Micromat would be foolhardy to claim their software can address certain issues with APFS devices if it was unable to It seems to me that TechTool Pro can deal with some issues on APFS devices and again, for me, one main issue I was concerned about - rebuilding a borked directory. So, I am most interested in what more knowledgeable people than me have to say about this. I can’t make any claim for anyone else that TechToolPro will help with any issues but I have no complaint except for the missing options that I don’t really feel are necessary on an SSD APFS volume anyway. I have had zero problems with it but at the same time this would be a ymmv comment. I have also run some of the other options in TechToolPro 11 just because I wanted to see how it acted. It should be noted that I have a 3rd party SSD in my aging MacBook, which certainly breathed new life into it, but the SSD was also automatically reformatted as APFS. It goes through all the motions but has always given my machine a clean bill of health. I was very interested to see how TechToolPro 11 handled a “Volume Rebuild” which is listed as “Rebuild and repair a volume’s directory.” Because I have a bunch of backups plus a machine I was willing to use to test it out I have run TechToolPro 11’s Volume Rebuild option a number of times. That was always where Disk Warrior’s excelled but due to Apple not providing sufficient information Disk Warrior has been unable to provide a new version that supports APFS.īecause Micromat states that its “Volume Rebuild” option works on APFS I decided to have another look. However, one issue that I have encountered with more than a few machines is a scrambled directory. 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.” Solid state drives do not benefit from defragmentation, which only serves to wear out those drives sooner. **Note: Defragmenting (Optimizing) is not suppoted for APFS volumes, and is not advised for any drive with a Solid State component. In most cases, data recovery is not possible on Solid State Drives (SSDs). For best results, enable TechTool Protection before data loss. "†Note: Data Recovery may not recover data in all circumstances. On Micromat’s main page it states at the bottom: That said, similar issues arose on another ListServ I belong to and I made the following (lightly edited) comment there: My experience is only as a computer user who has used various tools, including TTPro, Disk Warrior and Drive Genus, over the years to manage issues with rotational hard drives. This is definitely a ymmv comment regarding this and I am arguably a neophyte when it comes to the underpinnings of disk corruption and repair.
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