Neither the "Disk usage" nor the "Disk I/O" pages list any of my drives and are therefore completely empty:
This problem seems to have started after I recently upgraded from OMV4 to OMV5 in July 2020, using the instructions from this post.
Graphs are generated under /var/lib/rrdcached/db/localhost/disk-sd? folders. For example:
Code
root@Sirius:~# ls -alh /var/lib/rrdcached/db/localhost/disk-sda
total 1.6M
drwxr-xr-x 2 root root 4.0K Mar 31 2018 .
drwxr-xr-x 27 root root 4.0K Jul 10 14:02 ..
-rw-r--r-- 1 root root 289K Jul 25 18:04 disk_io_time.rrd
-rw-r--r-- 1 root root 289K Jul 25 18:04 disk_merged.rrd
-rw-r--r-- 1 root root 289K Jul 25 18:15 disk_octets.rrd
-rw-r--r-- 1 root root 289K Jul 25 18:15 disk_ops.rrd
-rw-r--r-- 1 root root 289K Jul 25 18:15 disk_time.rrd
-rw-r--r-- 1 root root 146K Jul 10 13:58 pending_operations.rrd
I use openmediavault-snapraid and openmediavault-unionfilesystems plugins.
OMV v5.5.4-1
Kernel 5.6.0-0.bpo.2-amd64
I did find an issue describing this same problem here and added a comment, but that issue was closed suggesting the drives should appear after a while. This is not the case: they don't show up, even after waiting for several hours.
Ideas?