dickon wrote: ↑
Tue Mar 10, 2020 11:21 pm
For the OP's OQ, install sar, and get it to log to tmpfs or similar. Old fashioned it may be, but it does the job.
Thank you both for answers.
I'll leave to this OS, I'm not going to format and copy all data again.
What is OP's OQ? Sorry I'm a newbie here. Is this suggestion about jbd2? Thanks!