reports and Micromat's own Drive Scope does a better job at that (although the current version of Drive Scope crashes on launch on my M1 Mac mini running macOS 11.5 beta and is IMO pricey for a one-trick-pony). Now it has been well over a decade since I have encountered a damaged volume structure, disk and file optimization of SSDs has, if anything, a negative effect on their performance, and the only near-unique feature I find valuable in TTP is the detailed S.M.A.R.T. Back when TTP, Diskwarrior, and Drive Genius were first released having one, or more, of them readily available was essential because damaged volume structures were an all too common occurrence, Disk Utility's repair functions were notoriously weak, and disk and file optimization were essential to HD performance. My thinking is less analytical and more intuitive. When TTP was available on disc only because Apple wouldn't allow a d/l of the boot sequence, paying the upgrade price was almost mandatory, but since it became available as a d/l, there's been no need to pay for new versions before you needed them. In other words, does it still provide the troubleshooting functionality that made it a more or less 'must have,' or has that functionality fallen by the wayside and been replaced by attractive but less useful options? (And the same goes for DiskWarrior and Drive Genius.) Offer detailed, exportable reports on all test functions.

Perform a check of your sound system and speech synthesis functions Ĭreate an eDrive (electronic drive partition that can be used as an emergency startup partition Lion automatically creates an emergency startup partition) Perform a check of your monitor and verification of iSight functions Scan your local networks, and report on all devices found, their IP address, and what services and ports are active (Figure 5) Verify and repair disk permissions (Disk Utility does this, too, but with less detailed results) Securely erase data (Disk Utility can do this, too, with fewer options) Įnable or disable file system journaling (Disk Utility can do this as well) Recover files from a damaged volume, or in certain cases, from the trash

Optimize a volume to consolidate free space Perform a check of volume directory corruption (again, Disk Utility can do this, too, but with less detailed results) ĭefragment a drive (Mac OS X does this automatically, but not with the same manic sense of completeness)

Perform a SMART check of a hard drive, confirming that the on-board electronics are working and properly reporting drive health (Figure 3 Disk Utility can do this, too, but with less information on results) Perform a surface scan of a hard drive, checking every byte for bad blocks Clone a volume (Figure 2 Disk Utility can do this, too, but with fewer options)

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