read and write back full disk to trigger relocation

From: Artem Kuchin <artem_at_artem.ru>
Date: Sun, 28 May 2023 11:12:21 UTC
Hello!

I have a 3TB gmirror raid and i noticed that it can be a case that some 
data decays and i would never know it.

If course i can run full disk read once in a while, but i'd rather 
prefer to read  and write the data back, so it sector

is damaged it can trigger relocation.

Is there a ready made utility for such task or i need to write my one?

Artem