On Mon, 14 Nov 2016 18:10:34 +0100 Ancor Gonzalez Sosa <ancor@suse.de> wrote:
We are discussing here what to do when reusing an existing volume group in the new storage proposal and I would like to hear as many opinions as possible, as I don't know what is better. https://github.com/yast/yast-storage-ng/pull/111#discussion_r87795799
What the old (current) proposal does ==================================== (A longer version of this explanation including examples is available in a comment at https://trello.com/c/WbcaGFAo for those with access.)
The old proposal only reuses a VG called "system". If such VG exists and is big enough, the required LVs will be created there.
The previous LVs will not be touched if there is enough free space. Otherwise, as many LVs as needed will be deleted (not necessarily all of them).
There is one special case. The proposal reuses (reformats) any LV named "root" (if it's big enough, I assume).
What the code in yast-storage-ng#pr111 does =========================================== The new proposal decides which VG to reuse (if any) based on the size, not on the name.
There is no reusing of LVs. The proposal simply deletes as many previous LVs as needed to make space for ours (it deletes none if there is enough free space already at the beginning). Pretty much like the old proposal does.
What's under discussion ======================= Steffen suggested that we should always just delete all LVs when reusing an existing VG. At least in the case when we don't fit into the original free space.
That would mean less logic to maintain, of course, but I wonder whether its a step backwards.
So I guess the question is - does it makes sense to be conservative when deleting LVs (trying to delete as few as possible) or should we go directly all the way through?
Cheers.
Well, interesting topic. When I testing, it is fine for me to delete everything and recreate from scratch. But If I as home user do fresh installation, I would like to keep LV with home or any "data" LV ( I often have data LV that is separated from home, as home contain also version specific configuration of packages, which I would like to kill for proper working of software, but I have separated data LV, which contains photos, videos and documents, which I after installation mount to target home. And there is third group which is corporate users, that probably are not so interested in home, as it is remote or having documents elsewhere, where I expect it is not problem to destroy all LVs. So from my POV(!) it make sense for openSUSE: - destroy only root and swap LV and try to reuse others for SLE: - destroy all Josef -- To unsubscribe, e-mail: yast-devel+unsubscribe@opensuse.org To contact the owner, e-mail: yast-devel+owner@opensuse.org