TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software: certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.
One of the strengths of TestDisk is the wide range of filesystems that are recognized by the tool. It can recover lost partitions that employ these diverse filesystems on the Windows, Mac, Unix and Linux platforms. The software also recognizes multiple disk partitioning schemes including:
We will perform this TestDisk tutorial using a MacBook Air circa 2015 running Mojave. The disk we will use to test the software on is a Wilk USB disk with a capacity of 16GB. The disk is partitioned into two 8GB partitions named, aptly enough, partition1and partition2.
This software tool has been helping users recover lost data since 2003. During that time it has been used by millions of customers to recover from a wide variety of data loss scenarios. The application can restore lost files deleted from the Trash, recover data from accidentally formatted disks, and recover data lost due to a virus attack. Recover data from external drives, SSDs, and memory cards among other supported devices. Support is provided for hundreds of file types including all popular video, image, audio, and document formats.
Perform a speed test of any drive, including network mapped drives, to give you insight into the read/write performance and overall throughput of the system. The information provided by AJA System Test allows you to refine and tune drive speeds and system performance to provide the bandwidth necessary for the demands of production and postproduction.
System Test clearly displays the current test results as well as configuration information in an easy-to-use graphical interface. Pulldown menus allow you to quickly choose what type of test to run, which drive to evaluate, the video size and frame rate as well as overall file size and any connected video device.
In addition to disk performance, the full version of System Test (included in the full Desktop software downloads) can also evaluate your PCIe bandwidth to determine if your system configuration can support various data rates to PCIe-based I/O devices. With larger image formats, PCIe performance is becoming more critical and System Test gives you visibility into your systems performance throughout the entire image delivery pipeline.
Awhile back, I made a video about USBc and the classic Mac Pro but lamented yet ago the terrible benchmarking on macOS. The first commenter on FaceBook pointed out that we finally have a good disk benchmark utility AmorphousDiskMark. While it isn't a direct port, it's heavily inspired by the famed and loved Windows utility, CrystalDiskMark.
BlackMagic's Disk Speed Test only tests one thing, continuous throughput. This is useful but only measures one aspect of an SSD, and doesn't necessarily mimic accurately how most disk interactions occur. Random Read and Write tests are as important, if not more so, as many SSDs can deliver fast maximum continuous read and writes but much less so for random small data blocks. CrystalDiskMark tests random reads and writes both as queued requests and single requests. The default depth is pretty high for the test. Usually, an OS wouldn't have that deep of a queue, but the Q1T1 does mimic a singular request. Also, CrystalDiskMark measures IOPS (Input/Output Operations-per-second), which is similar but also a different measure of disk speed.
for the full report where disk0s3 is the disks physical backing which can be found in Disk Utility.app by getting info on the drive. (or via diskutil list on command line.) Here is an example of the output:
Most MacOS don't support SMART and if your trying to do a MacART attribute applied it will fail installs and it causes the system to freeze up after each action performed, like copying a file, at the end of the process it locks up the OS. This is due to SMART reading the data in/out on the drive at the moment it drops the file the SMART sensors cause the system to freeze from not being supported on a monitored system, it's not supported. If you have SMART enabled on a Mac or a Mac OS, go into disk utility and at the bottom in the disk info you will see it says, SMART not supported. Most of the MacOS I know of don't support this feature and to get a hackintosh to install most of the distro installers without your system being rejected, you must not enable this feature. I have even had Linux mint in virtualbox installed in aRAM drive say that it didn't support SMART. I will post a few pics. Every hard drive that has this feature doesn't work with MacOS very well.
I have a 1Tb disk which was partitioned into a ~700gb ntfs disk and a 300gb HFS+ (Mac OS X). I've accidentally allowed Mac OS X to wipe the hard-disk and create a single HFS+ partition over the hard-drive. I want to recover my NTFS partition.
There are also low cost options - buy a new bare drive and an inexpensive USB/SATA adapter and you could make a block copy of the drive and test out whatever idea / DIY software knowing you are working on a copy of the drive - not the only copy of the data.
Step 1: Go to TestDisk official website and download the Mac version from there. The file is archived in tar.bz2 format. You have to unzip the file via an app like Unarchiver or in Terminal with the command: tar -xvzf testdisk-7.1-WIP.mac_intel.tar.bz2
Disk Drill is one of the most popular data recovery apps designed for Mac. The best part of Disk Drill app is that it can recover 200+ types of files from various file systems. It also has a few nice built-in utilities such as data back and disk cleanup.
TestDisk is a powerful data recovery utility. It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally erasing your Partition Table). PhotoRec is file data recovery software designed to recover lost pictures or lost files from digital camera memory (CompactFlash, Memory Stick, SecureDigital, SmartMedia, Microdrive, MMC, USB Memory Drives), even Hard Disks and CDRom.
After fitting disks in enclosures, first issue I stumbled upon was a lack of disk benchmarking tool on MacOS. On Windows I used hdtune for ages and was happy with it. On MacOS however, Blackmagic Disk Speed Test in Mac App Store did not inspire confidence in me (blac kmagic, cmon?), not did 11yrs old Xbench or jDiskMark beta (written in Java).
Each build is available to test for up to 90 days, starting from the day the developer uploads their build. You can see how many days you have left for testing under the app name in TestFlight. TestFlight will notify you each time a new build is available and will include instructions on what you need to test. Alternatively, with TestFlight 3 or later, you can turn on automatic updates to have the latest beta builds install automatically.
When the testing period is over, you'll no longer be able to open the beta build. To install the App Store version of the app, download or purchase the app from the App Store. In-app purchases are free only during beta testing, and any in-app purchases made during testing will not carry over to App Store versions.
You can send feedback through the TestFlight app or directly from the beta app or beta App Clip by taking a screenshot, and you can report a crash after it occurs. If you were invited to test an app with a public link, you can choose not to provide your email address or other personal information to the developer. Apple will also receive all feedback you submit and will be able to tie it to your Apple ID.
When you take a screenshot while testing a beta app or beta App Clip, you can send the screenshot with feedback directly to the developer without leaving the app or App Clip Experience. Developers can opt out of receiving this type of feedback, so this option is only available if the developer has it enabled.
When you test beta apps or beta App Clips with TestFlight, Apple will collect and send crash logs, your personal information such as name and email address, usage information, and any feedback you submit to the developer. Information that is emailed to the developer directly is not shared with Apple. The developer is permitted to use this information only to improve their app and is not permitted to share it with a third party. Apple may use this information to improve the TestFlight app.
From the world's leading provider of high-performance storage & network connectivity products, ATTO Disk Benchmark for macOS® is the tool that top drive manufacturers use to build and test drives, IT professionals use to maintain IT ecosystems, and leading hardware review sites include in benchmark suites. 2b1af7f3a8