Update: You can use a free trial of Path Finder to do the test instead of rsync. If you use Finder to test, there are a lot of beach balls. If you use Path Finder, you can use Finder to observe what happens in the receiving directory. Rsync is better since we get a log report, but I realise many people are uncomfortable using terminal. I will update this post with instructions when I get the time. Path Finder Site
If you wonder what this is all about, see here: https://forums.macrumors.com/threads/14-and-16-m1-pro-sd-card-slot-problems.2320399/ or watch my video under Test heading here.
I want to build up a database of SD-Cards that pro and hobby photographers can rely on. This will also give us info that we can use to document if this problem is random or not.
This is not a speed test! I only want to know if the card works or is troublesome, but since rsync will report speed I will note the result.
So at the start I want to limit this test to SD-Cards formatted by a camera and filled with test pictures. It is important that you take a backup of your work photos before testing and use test photos to do the test. Some people have reported loss when they copied their photos. The reason for the limit is that this is what I have tested myself and seen how works. I urge others to make tests for other use cases and make their own test report.
I have tested one of my cards approximately 30 times with no problems. Although if you follow the test procedure as described, there is no reason to believe you will run into trouble, there is no guaranty. I take no responsibility for problems you might run into.
If you have several of the same card, please test more than one.
Please ignore people who want to discuss if it was smart adding a SD-Card reader.
Sorry did not find out how to extend the table.
Copy this text into a new terminal window
!!! IMPORTANTANT After copying hit space once (or twice does not matter how many)
Drag the "SD-Card-Test" folder to the terminal.
Hit Return (Or Enter).
If all is well, the files should come in an even stream. No pause like in my video should occur. Make a note of what happened.
rsync will try again automatically so you might get all your files although the card is misbehaving.
Do not run this test twice without ejecting the card between runs. Because of cache the second test might go well even if the first gets an error.
Post a reply to this thread with your results and additional info. Copy the lines below and use as headings.
[ ]- Did the photos copy in an even stream?
[ ]- When the terminal test finishes copy all the lines into your report.
[ ]- From Apple menu (Apple in the menu up to the left) choose About this mac. In Overview click System Report. You see Hardware at the top. Go down to Card Reader. Copy ALL the text into your report. Close the System report if you are testing more than one card.
[ ]- Take a photo of the card front, upload it.
[ ]- Take a photo of the card back, upload it
[ ]- If you got another older mac or external reader, do you get the same problem?
If you wonder what this is all about, see here: https://forums.macrumors.com/threads/14-and-16-m1-pro-sd-card-slot-problems.2320399/ or watch my video under Test heading here.
I want to build up a database of SD-Cards that pro and hobby photographers can rely on. This will also give us info that we can use to document if this problem is random or not.
This is not a speed test! I only want to know if the card works or is troublesome, but since rsync will report speed I will note the result.
So at the start I want to limit this test to SD-Cards formatted by a camera and filled with test pictures. It is important that you take a backup of your work photos before testing and use test photos to do the test. Some people have reported loss when they copied their photos. The reason for the limit is that this is what I have tested myself and seen how works. I urge others to make tests for other use cases and make their own test report.
I have tested one of my cards approximately 30 times with no problems. Although if you follow the test procedure as described, there is no reason to believe you will run into trouble, there is no guaranty. I take no responsibility for problems you might run into.
If you have several of the same card, please test more than one.
Please ignore people who want to discuss if it was smart adding a SD-Card reader.
| SD-Card | Size | Did not copy all | Slow Start, Errors, all files copied | OK | Speed | OK in external reader or other mac |
| SanDisk Extreme Pro 95MB/s UHS-I U3 V30 SDHC Class 10 | 32GB | x | 5.28M bytes/sec | Yes | ||
| SanDisk Ultra 80MB/s UHS-I SDHC Class 10 | 16GB | x | 55.52M bytes/sec | Yes | ||
| SanDisk Ultra UHS-I microSDHC Class 10 | 16GB | x | 60.95M bytes/sec | Yes |
| SD-Card | Size | Did not copy all | Slow Start, Errors, all files copied | OK | Speed | OK in external reader or other mac |
| SanDisk Extreme HD Video 30MB/s UHS-I SDHC Class 10 | 8GB | x | 38.00M bytes/sec | Yes | ||
The test
Intro
Look at this intro video I made from my desktop. It is real-time. Nothing is happening between 00:25 and 01:42. Feel free to skip ahead.
In Camera
Format your card. Try filling up your card with 30 photos or more. In my tests, it does not matter how many files there are, or how big they are. Please tell me if I am wrong.In Finder
Make a folder to receive the copied files name it "SD-Card-Test"In Terminal
Start Terminal app from /Applications>Utilities.Copy this text into a new terminal window
/usr/bin/rsync -avE -h --exclude=".*" --stats --verbose!!! IMPORTANTANT After copying hit space once (or twice does not matter how many)
In Finder and Terminal
Push in your card and drag the card to the terminal like I showed in the video. Do not try to look at the files in Finder.Drag the "SD-Card-Test" folder to the terminal.
Hit Return (Or Enter).
If all is well, the files should come in an even stream. No pause like in my video should occur. Make a note of what happened.
rsync will try again automatically so you might get all your files although the card is misbehaving.
Do not run this test twice without ejecting the card between runs. Because of cache the second test might go well even if the first gets an error.
Your report
Post a reply to this thread with your results and additional info. Copy the lines below and use as headings.
[ ]- Did the photos copy in an even stream?
[ ]- When the terminal test finishes copy all the lines into your report.
[ ]- From Apple menu (Apple in the menu up to the left) choose About this mac. In Overview click System Report. You see Hardware at the top. Go down to Card Reader. Copy ALL the text into your report. Close the System report if you are testing more than one card.
[ ]- Take a photo of the card front, upload it.
[ ]- Take a photo of the card back, upload it
[ ]- If you got another older mac or external reader, do you get the same problem?
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