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0rinoco

macrumors regular
Original poster
Mar 1, 2020
117
15
Luton, Bedfordshire UK
I have just checked a Sandisk SSD 64gb capacity, and it comes up on Disk Utility as 101 mb. Is the drive faulty, or am I doing something wrong? This is a drive I have had for a few years, now, by the way.
Screenshot 2021-12-12 at 08.21.36.png
 

KeesMacPro

macrumors 65816
Nov 7, 2019
1,453
596
You could set "view" in Disk Utility to "show all devices" .
This will show you the device and the partitions on it.
Whether in use or not 64GB should be visible somewhere, unless the SSD is EOL...

Btw is there a reason for format Case sensitive ?
 
Last edited:
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0rinoco

macrumors regular
Original poster
Mar 1, 2020
117
15
Luton, Bedfordshire UK
Thanks for the reply. No reason for formatting it case sensitive, really. This is the ominous - looking result when I use the View option. I've only used the drive occasionally over the last couple of years, and it was OK last time. Just interested to know how this could have come about. Luckily, there was nothing on it when I reformatted it from ex-fat.
Screenshot 2021-12-12 at 19.33.28.png
 

KeesMacPro

macrumors 65816
Nov 7, 2019
1,453
596
The partition map on the drive is set as Master Boot Record (=Windows).
To get access and make the 64GB visible again running Mac OS , you have to erase the device itself called Sandisk SDSSDP...
If you erase and choose GUID partitioning and Mac OS Extended (non-case sensitive) , it will work again as it is supposed to.
 
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Fishrrman

macrumors Penryn
Feb 20, 2009
29,248
13,324
OP:

Is there nothing on this drive you need to save?
In other words, can you just erase it and start over?

If so, I suggest you use disk utility to erase it to "Mac OS extended with journaling enabled, GUID partition format, case INsensitive" ...
 
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