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That feeling when you suddenly realize you never setup Core Lightning backups when you migrated to a new server...

Thankfully got them setup pretty quickly using the SQLite duplicate database feature to an NFS-mounted NAS over TailScale, but was a terrifying realization nonetheless.

How are you all doing backups for LND/CLN?

openoms 2y ago

Enter #Raspiblitz

CLN:

- the backup plugin replicates the channel database realtime to the OS disk (SDcard on RPi)

- the emergency.recover file (same as LND SBC) is synced to the OS disk and backed up to Nextcloud/Dropbox/Telegram

optionally. The last CLN release can backup with peers as an experimental feature.

LND:

- has no database replication option.

- The SBC is treated as above.

I like using a highly redundant ZFS volume as my data disk.

2 out of 4 disks can fail and be changed on the fly + regular snapshots can be synced to another server or NAS.

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Discussion

Seth For Privacy 2y ago

♥️

I really need to consider switching to RasbPiBlitz now that you have x86 support...

openoms 2y ago

Thanks to CLN most of these options are easily available and probably easier to configure f not using Docker.

Plus you already added the database replication which can be done parallel to the backup plugin.

The biggest difference is that the backup plugin does the save append-only so better suited for an SDcard (if using an RPi), but also needs compacting (can be done without CLN restart as it is only done on the backup).