If they do, then this indicates the drive may be failing. Finally, use a third-party utility like Drive Genius or Disk Tools Pro to check the drive's media with a surface scan.
This will check for bad blocks and replace them with spare blocks, if necessary. If you do find bad blocks with a scan, then again repeat this scan the following day, after using your system, and continue to do so for a few more days. If bad blocks continue to appear, then this suggests the drive will likely need to be replaced. For external drives, unfortunately, SMART status checking is not supported; however, you can still check its formatting and perform a surface scan. In addition, for external drives you can troubleshoot any daisy chains and drive connections if the drive will not mount, or if it suddenly ejects, since improper daisy-chaining can lead to loss in power or data connection that can corrupt drive contents.
Have a fix? Be sure to check us out on Twitter. Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion. Apple has taken this matter into consideration, thus it provides a built-in backup utility — Time Machine.
With backups, data recovery can be pretty simple. For instance, as long as you have backed up your PST file, even though you come across Outlook corruption, you still can recover PST data from backups readily. Without any doubts, the worst case must be that the internal Mac hard drive fails and you have no recent backups. In this situation, not only will you be unable to boot your Mac, but also you cannot access your Mac data. Thus, at this point, you will definitely leave no stones unturned to get back your Mac data.
In the first place, you can attempt to fix the internal hard disk via FSCK command in single user mode.
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Here are the detailed steps for your reference:. Provided that the above solution makes no effects, you can move on to try Target Disk Mode. It is a powerful way to access and fix a failed Mac hard drive.
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Assuming that the two methods introduced above fail, you can try this DIY data recovery way. That is to take out the internal hard drive from the Mac and use it as an external drive. Furthermore, if you can confirm that what the internal Mac hard drive suffers is software issue, you can resort to third party software. There is a great amount of such software available nowadays. You could choose a reliable and experienced one to take a shot. For instance, if your Mac is still in warranty period, you can contact apple official support.
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Except the third party tools, there are also multiple available third party recovery services. Some of them consist of many drive repair and recovery professionals, who have adequate experience and specialized knowledge. Thus, if you can afford it, you can ask such services for help. Shirley Zhang is a data recovery expert in DataNumen, Inc. For more information visit www.
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