Comment 7 for bug 1867916

Hi Mauricio,

thanks for your support. I have attached the requested information to the bug. I had to pseudomize some of the logical volume names because they are considered sensitive, but I did so in a consistent way so the structure should still be clear.

So that you don’t have to look through all details, here is a rough overview:

There are six physical disks: 4 HDDs (sda, sdb, sdc, sdd) and 2 SSDs (sde, sdf).

There are three DM RAID devices:

- md0 is a RAID 1 that uses /dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1. This device stores the boot partition.
- md1 is a RAID 6 that uses /dev/sda2, /dev/sdb2, /dev/sdc2, and /dev/sdd2. This device is the only physical volume backing volume group vg0.
- md2 is a RAID 1 that uses /dev/sde1 and /dev/sdf1. This device is used as the cache device (read/write) for Bcache.

There are three LVM volume groups:

- vg0 is backed by /dev/md0 and stores the root FS, the swap partition, a few LVs that are used for VMs, and an LV called vg2-backend, that is used by Bcache.
- vg1 is backed by /dev/md2 and only has an LV called vg2-cache that is used by Bcache.
- vg2 is backed by /dev/bcache0. It only contains LVs that are used for VMs.

There is one Bcache device:

- bcache0 is backed by /dev/vg0/vg2-backend (backend device) and /dev/vg1/vg2-cache (cache device). This device is used as the PV for vg2.