What is the /dev/dm-0 partition for and how to clean it?

Question

linux

Good afternoon,
I rent a server that I use only for testing.
Recently, it began to slow down during the execution of file operations and the ispmanager panel began to crash constantly.
I started to understand, and I see that most likely the problem is in the disk partition - /dev/dm-0

Could you tell me how to fix this problem?

Answer 1

In my case, the problem turned out to be in the /root partition, which needed to be cleaned.