On Tue, 4 Sep 2018 15:50:51 +0200
Richard Brown
Looking briefly at the thread it seems obvious to me that the user in question had a number of problems
1- an old installation with an old btrfs layout - modern btrfs installations have /var as a single subvolume.
I have an 'old' installation too - that is an installation that has been upgraded rather than freshly installed. Are you saying that is a 'problem'. If so, why does openSUSE offer it? Why does it not offer to convert it to the 'modern' installation?
2- a disk too small for their use - 40GB should be fine for many users, but that is just a default. After all anyone storing anything in /var, such as logs, is going to be 'robbing' space otherwise useful for snapshots
My root is 41G as well. openSUSE chose to put /var on that device, not me, and I use it to store logs and whatever else goes into /var because that's how openSUSE set it up. I have snapshots set up to be auto-deleted after one month for the regular stuff generated by YaST (which seems a little over-enthusiastic in their creation, if I'm honest) and I have about half my root partition free. I don't have any 'lost' snapshots; perhaps I'm lucky that I have no idea how they could occur.
1. is a slight annoyance which anyone on any SUSE or openSUSE distribution before 15 needs to deal with, and does require attention to the paid to the individual contents of all the separate /var/* subvolumes. That said, the flattening of /var was mostly due to the needs of openSUSE Kubic not SUSE or regular openSUSE.
2. is a problem only for people who are not paying adequate attention to their own system, which would be atypical for SUSE customers.
So, to answer your inflammatory question, corporate SUSE are very happy with their decision to use btrfs as their default root filesystem and their ongoing growth as a company can be at least partially attributed to the features available in SLE and CaaSP due to the extensive use of btrfs.
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