On Fri, Sep 11, 2015 at 2:51 PM, Joe Thornber <thornber@redhat.com> wrote: > 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. I would have hoped that the distro scripts would take care of this. Apparently not, for whatever reason :(. I have since upgraded to kernel 4.2, and the behavior has not changed. I'll try to reboot today instead of shutdown and see if anything changes. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
