Am Tue, Aug 03, 2021 at 07:10:03AM +0800 schrieb William Kenworthy: > >> Keep in mind that both repos have the same ID - you should also rsync > >> the cache and security directories as well as they are now out of sync > >> (hence the warning). > > That thought crossed my mind recently but I was unsure how to store the > > cache. But since the repo is a monolith, it should suffice to rsync > > the whole cache directory to the backup drive (or do it as a tar). > > > > The only problem is the temporal sequence: > > 1. Host A runs borg and gets a current cache. > > 2. Host B runs borg on the same repo and gets a current cache. > > 2a. Host A now has an outdated cache. > > > > Usually, Host B uses Host A via ssh as remote location of the repository. > > So I could simply run a borg command on Host A to update the cache somehow. > > > >> Be very careful on how you do this - you are one step away from losing the > >> while repo if the cache gets out of sync. The docs warn against rsyncing > >> two repos and then using them at the same time for a good reason. > > I won’t use them at the same time. It will always be one direction: > > Hosts --[borg]--> Main backup drive --[rsync]--> secondary backup drive > > > You could delete and rebuild the cache each time (or I think there is a > way to do without it).
If the cache can be easily rebuilt, then there’d be no need to store it at all. At least that’s what I hoped, but was shown otherwise; I deleted the whole cache, wanting to clean it up from cruft, and then the next run took hours due to complete re-hash. > There are quite a few threads on the borg lists about this in the past > (usually people trying to recover trashed repos) I’ll give them a read in a quiet hour. > - you might ask there if there is a way to deal with changing the ID now? Why would I need to change the ID? As already explained, I will only ever borg to the primary backup disk and mirror that to another disk with rsync. And when the primary fails, I use the secondary as drop-in replacement. -- Grüße | Greetings | Qapla’ Please do not share anything from, with or about me on any social network. Sometimes the fingers are faster then grammar.
signature.asc
Description: PGP signature
