4/26/2023 0 Comments Hard dsk maintenance for mac![]() ![]() This is a tool to use when you have problems it doesn’t do anything but repair corrupted disks. One of the most popular and powerful disk repair tools is DiskWarrior, by Alsoft (With a unique approach, DiskWarrior rebuilds a damaged directory. A similar tool, called TechTool Pro, is available on its own, without an AppleCare contract, from Micromat (who also makes another hard disk maintenance program, Drive 10. If you do have hardware problems, it should find most of them. TechTool Deluxe goes further than many other maintenance programs by checking internal hardware, such as your processor, RAM, and USB system. You can turn it on by using Disk Utility, which I talk about in the “Work with Apple’s Disk Utility” section later in this chapter. ![]() Journaling is on by default when you format a new volume or partition, but if you upgraded from a previous Mac OS X or Mac OS 9 system, journaling won’t be on. When this occurs, it may take your Mac longer to start up, but journaling allows your hard disk to recover its directory, as much as possible, and can prevent serious disk problems. Journaling keeps a record of changes made to the directory, protecting against some types of corruption if you have a system crash or if you lose power. Since Mac OS X 10.3, Apple uses journaling by default when formatting hard disks. TechTool Deluxe, shown in Figure 21-5, performs a variety of maintenance tasks, from checking your hardware for problems to checking your hard disk for irregularities and correcting them if possible.įigure 21-5: TechTool Deluxe checking a hard disk for problems One such program is TechTool Deluxe, which is included in Apple’s AppleCare package, an extended guarantee program that covers your Mac for three years. Several companies make such software for the Mac, and it comes either as programs designed only to repair disk problems or as part of larger packages that include other maintenance and security software. But sometimes disk corruption is more serious.įortunately, you can use disk maintenance software to check your disk, find out if there is corruption, and, in many cases, repair it. If any errors are found, and the built-in disk maintenance software can correct them, it does so. In other cases, you might not be able to open certain files, and your applications may say that files are corrupted.Įach time you start up your Mac, the system runs a check on your hard disk. In the most serious cases, your Mac will not be able to restart because it cannot read the system files it needs. If a program incorrectly writes data to the disk, crashes when doing so, or if you have a power interruption, corruption can occur. Unfortunately, only in a perfect world would hard disk corruption not exist. The main problem that can occur with hard disks is that the directory gets corrupted, or damaged, making it impossible to find some or all of your files.Ĭorruption can be minor, affecting just one or several files, or it can be more serious, affecting the integrity of the entire disk. As data is written, the disk’s driver-the software that controls the read-write process-updates a directory, or catalog, which keeps records of where each piece of data is stored. The heads read and write to the platters, storing data in blocks, which are predetermined sectors on the hard disk. While hard disks are very reliable, and don’t break down often, the way data is written to the disk can lead to problems.Ī hard disk contains several magnetic platters and heads. The weakest hardware link in any computer is the hard disk, because this is where you data is written, stored, and read. While you can do little to check or repair your hardware, there is one item you need to keep an eye on: your hard disk. But proper maintenance goes beyond just ensuring that you have the latest versions of your software. I told you earlier how to keep your Mac up-to-date by regularly checking for system and application updates that’s one of the most important parts of maintaining your Mac.
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