Users response. Regards Sid. -------- Forwarded Message -------- Subject: Re: Fwd: snapshots filling up SSD Date: Sat, 8 May 2021 15:29:09 +0000 From: Sav. Mellor <sav.mellor@outlook.com> To: Sid Boyce <sboyce@blueyonder.co.uk> Hi Sid, thanks for that. I think, though, that the point is that installing Opensuse Leap from the DVD download, configures the disk, regardless of technology, as a 40GB btrfs partition, a swap partition and the rest of the disk as an xfs partition. The reason the documentation gives is to protect your user data if you need to rollback a faulty update, which makes sense, I used to configure my Windows HDDs that way for the same reason, albeit with a much bigger system partition. The standard install for Opensuse then sets up the snapshots retention as 20 plus 20. I think the 40 GB and snapshot retention numbers are a mismatch. I think either a 64 GB btrfs and 20 plus 20 or 40 GB btrfs and 10 plus 10 would be better matched. As your correspondents noted, anyone encountering a btrfs configuration for the first time would expect that the "standard configuration" would be appropriate. Clearly, in the case of my SSD, it was not. The more I think about it, I'm convinced that a btrfs root "/" and xfs data "/home" configuration is fine for HDDs but not for SSDs, because of the wear considerations on SSDs. I think the "standard configuration" installer should allocate just a brtfs and a swap partition on a SSD, like your configuration, with the option to split root and home if you know what you are doing. Incidentally, on the two Windows systems I still have (applications not compatible with Linux) that have SSDs, I run them as a single partition, because of the wear considerations. Best regards, Sav On 09/05/2021 00:01, Sid Boyce wrote:
FYI. Sid. -------- Forwarded Message -------- Subject: Re: snapshots filling up SSD Date: Sat, 8 May 2021 09:18:21 +0200 From: Thorsten Kukuk <kukuk@suse.de> To: factory@lists.opensuse.org
On Sat, May 08, Michael Hamilton wrote:
The installer should restrict or warn users about the unusual space
requirements for OpenSUSE btrfs-root. Many people coming to OpenSUSE may not have encountered btrfs or snapshots before.
The installer is doing this. But YaST cannot look in the future what the user will do with the system afterwards.
So assume somebody is doing a standard installation. 40GB are clearly enough for this. Now he installs a lot of additional software
afterwards and does additional things like video recording or running
VMs, which are all very disk consuming -> the user will run into problems, which was not predictable by the installer.
Thorsten
-- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Senior Staff Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks