> ----- Original Message ----- > From: Chris Pemberton [mailto:pchris.bci at gmail.com] > To: centos at centos.org > Sent: Mon, 3 Feb 2020 13:28:27 -0600 > Subject: [CentOS] Hard disk activity will not die down > > I updated my backup server this weekend from CentOS 7 to CentOS 8. > OS disk is SSD, /dev/md0 are two 4TB WD mechanical drives. > No hardware was changed. > > 1. wiped all drives > 2. installed new copy of 8 on system SSD > 3. re-created the 4TB mirror /dev/md0 with the same WD mechanical drives > 4. created the largest single partition possible on /dev/md0 and formatted > it ext4 > 5. waited several hours for the creation of /dev/md0 to finish > 6. copied all data back onto /dev/md0 > > Both installs were a full workstation, with Gnome. > The mirror is mounted via fstab as: > /dev/md0 /mnt/raid1 ext4 defaults 0 0 > > Under CentOS 7 the /dev/md0 mirror was silent when not in use. Now under > 8, the hard drives are constantly "pinged" by some process, at about the > same frequency as a heartbeat monitor. I can not figure out what process > is keeping them active. iotop does show a process named [ext4lazyinput]. > > Is there something I've missed? What does "cat /proc/mdstat" say? _______________________________________________ CentOS mailing list CentOS at centos.org https://lists.centos.org/mailman/listinfo/centos