sd-card,health-monitoring , Checking SD card health data, if available


Checking SD card health data, if available

Question:

Tag: sd-card,health-monitoring

I would love to know if a SD card provides something similar to "SMART" information, like harddisks and SSDs.

I am interested in checking health information of the SD card in a Raspberry PI, for preventive replacement. My write needs are quite high and physical access to the device is complicated and it needs to be planned in advance.

I might write a device driver for this if there is information out there.


Answer:

As of version 4.20 of the SD Specification, there are currently no device health monitoring features. The JEDEC eMMC 5.0 spec added device health indicators in Sept 2013 and version 6.0 of the SD spec is supposed to follow by the end of the year.

That said, it's typically several months before the first devices supporting the new spec comes out and even longer before it has majority market share.


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