peer manager and FDS full

[Min-Joon Kim]

Recently, I've found that the peer manager sometimes wrote specific information so many times

until the FDS storage went full.

An example data in the storage is as follows:

     08C0 0400 01C0 0000 FE14 0000                     (FDS header)

     0300  0000 0800 1000 0200 0100 CDCA 0000  (data)

I'd like to know why it happens.

What is the meaning of the data stored ?

How to prevent it ?

Please kindly advise me.

Thank you.

Min-Joon Kim.

[Vidar Berg]

Hello,

Maybe the GATT client is updating the CCCDs on every re-connect as discussed it this thread: https://devzone.nordicsemi.com/f/nordic-q-a/64609/peer-manager-and-fds-new-records-at-each-connection ?

But when FDS is full, do you perform Garbage collection to free up space again? You can use the fds_stat() function to determine when it's time to run garbage collection as mentioned in this post https://devzone.nordicsemi.com/f/nordic-q-a/72920/peer-manager-and-use-of-fds-to-store-app-settings-in-flash

Best regards,

Vidar

[Min-Joon Kim]

Thank you for your kind answers, Vidar.

Actually, it's not easy to catch the right time to do garbage collection.

However, according to the articles you mentioned,

I guess it would be good to add flash check code prior to starting advertising.

Best regards,

Min-Joon Kim.