Re: state of btrfs snapshot limitations?

2018-09-19 Thread James A. Robinson
On Wed, Sep 19, 2018 at 4:04 PM Pete wrote: > snapshots. You need to delete it out of them as well which defeats the > idea of read only snapshots if you are using them. I wouldn't say it defeats the idea of read-only snapshots. If you want to be able to "go back in time" and see what changed,

Re: state of btrfs snapshot limitations?

2018-09-19 Thread Pete
On 09/19/2018 03:41 PM, Piotr Pawłow wrote: > Hello, >> If the limit is 100 or less I'd need use a more complicated >> rotation scheme. > > If you just want to thin them out over time without having selected "special" > monthly, yearly etc snapshots, then my favorite scheme is to just compare

Re: state of btrfs snapshot limitations?

2018-09-15 Thread Qu Wenruo
On 2018/9/15 上午5:05, James A. Robinson wrote: > The mail archive seems to indicate this list is appropriate > for not only the technical coding issues, but also for user > questions, so I wanted to pose a question here. If I'm > wrong about that, I apologize in advance. > > The page > >

Re: state of btrfs snapshot limitations?

2018-09-15 Thread Hans van Kranenburg
On 09/15/2018 05:56 AM, James A. Robinson wrote: > [...] > > I've got to read up a bit more on subvolumes, I am missing some > context from the warnings given by Chris regarding per-subvolume > options. Btrfs lets you mount the filesystem multiple times, e.g. with a different subvolume id, so

Re: state of btrfs snapshot limitations?

2018-09-14 Thread James A. Robinson
Wow, thank to everyone for all that information, I'm going to have to take some time to digest everything. :) I just wanted to quickly say one thing: As Duncan surmised, I'm not treating this as my primary backup, but more of an experimental add-on feature. The primary backup goes to an ext4

Re: state of btrfs snapshot limitations?

2018-09-14 Thread Duncan
James A. Robinson posted on Fri, 14 Sep 2018 14:05:29 -0700 as excerpted: > The mail archive seems to indicate this list is appropriate for not only > the technical coding issues, but also for user questions, so I wanted to > pose a question here. If I'm wrong about that, I apologize in advance.

Re: state of btrfs snapshot limitations?

2018-09-14 Thread Chris Murphy
On Fri, Sep 14, 2018 at 3:05 PM, James A. Robinson wrote: > https://btrfs.wiki.kernel.org/index.php/Incremental_Backup > > talks about the basic snapshot capabilities of btrfs and led > me to look up what, if any, limits might apply. I find some > threads from a few years ago that talk about

Re: state of btrfs snapshot limitations?

2018-09-14 Thread James A. Robinson
Thanks very much for the useful information. I'll give the simple scheme a try, after I adjust mount preferences. Jim

Re: state of btrfs snapshot limitations?

2018-09-14 Thread Hans van Kranenburg
Hi, On 09/14/2018 11:05 PM, James A. Robinson wrote: > The mail archive seems to indicate this list is appropriate > for not only the technical coding issues, but also for user > questions, so I wanted to pose a question here. If I'm > wrong about that, I apologize in advance. It's fine. Your