[linux-lvm] Strange dm-cache activity at startup
thornber at redhat.com
Fri Sep 11 12:51:05 UTC 2015
On Thu, Sep 10, 2015 at 11:30:27AM +0200, Stefan Ring wrote:
> Is this normal/expected? What does it do? Why does it write back huge
> amounts of data to the HDD after each system start?
No, this is not expected. The most likely cause is your system was
not shutdown cleanly so dm-cache has no choice but to assume all
blocks are dirty and need writing back. Make sure your volumes are
being deactivated as part of shutdown.
More information about the linux-lvm