[Solved] Nc-snapshot-sync - doesn't seem to be working

[alokspan]

I am using NCP (v1.24.0) on raspberry pi 4, with 2 external drives. One for data (USBdrive which is mounted on /media/myCloudDrive) and another drive for backup (/media/USBdrive1 mounted on /media/NCPBackup). Things are looking great, expect the regular backup setup.
I have been trying to use nc-snapshot-auto to create the regular snapshots and nc-snapshot-sync to transfer to my backup drive. I can see the regular snapshots are getting created on my main data drive (/media/USBdrive/ncp-snapshots/) but these are not getting sync to my backup drive (/media/USBdrive1/ncp-snapshots/).

I have been searching if others have also faced the same issue but could not find much.

This topic has the same setup but seems to be working in this case.

[SOLVED] NCP - Cannot Get nc-snapshot-sync & nc-backup-auto to Work

I’m hoping someone can help. I am running NCP on an Odroid HC2. I initially set the Odroid up with a single hard drive connect via the supplied SATA connection on the HC2. Everything is working perfectly and everything is configured just like I want. I am trying to set up a local backup before I go to the next step of off-site backups. I am using this guide: Link Since I originally only installed a single hard drive I could not simply connect another drive (via USB) and use nc-format-USB …

Any help would be greatly appreciated.

[OliverV]

I’d check output of

ls -lh /media/

To see what the (simlink) USBdrive1 is pointing to

When using automount, USBdrive and USBdrive1 can be switched around, after a reboot, better to use LABELs to make sure drives are mounted correctly and consistently

You can then ajust path to /media/LABEL/ncp-snapshots/

If it still doesn’t work try running it from terminal with ncp-config.

[alokspan]

Thanks for your response. Yeah! I did check that

root@nextcloudpi:~# ls -lh /media/
total 144K
drwxr-xr-x 1 root root 60 May 28 11:17 myCloudDrive
drwxrwxrwx 1 root root 128K Jan 1 1970 NCPBackup
lrwxrwxrwx 1 root root 19 May 30 05:08 USBdrive -> /media/myCloudDrive
lrwxrwxrwx 1 root root 16 May 30 05:08 USBdrive1 -> /media/NCPBackup
root@nextcloudpi:~#

When you are saying "running it from the terminal with ncp-config " - Do you mean running nc-snapshot-sync through the terminal? If it’s handy, can you advise how?

[OliverV]

In terminal/ssh/putty run

sudo ncp-config

select BACKUPS and select nc-snapshot-sync , using the actual path instead of the sym-link.

/media/NCPBackup/ncp-snapshots/

[alokspan]

Thanks! Setup done.

It says Sync periodicity (in days) 1. Not sure what time this sync starts. Will wait for 24 hrs and update the results.

[OliverV]

defaults to 4:30 am afaik
Can check adjust settings in

/etc/cron.d/ncp-snapsync-auto

[alokspan]

Yeah! … working now. It seems the issue was when scheduling it from the webpage.

Thank you so much for your help!.

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# date

Sun 31 May 21:01:40 BST 2020

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# cat /etc/cron.d/ncp-snapsync-auto

10 21 * * * root /usr/local/bin/btrfs-sync -qd “/media/myCloudDrive/ncp-snapshots/” “/media/NCPBackupDrive/ncp-snapshots-bkp/”

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# ls -lrt

total 0

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp#

You have new mail in /var/mail/root

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# ls -lrt

total 0

drwxr-x— 1 www-data www-data 246 May 31 21:22 daily_2020-05-28_111708

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp#
root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# date

Sun 31 May 21:23:33 BST 2020

root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp#
root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp# ps -ef | grep ncp-snapshots
root 13264 13256 0 21:10 ? 00:00:00 /bin/sh -c /usr/local/bin/btrfs-sync -qd “/media/myCloudDrive/ncp-snapshots/” “/media/NCPBackupDrive/ncp-snapshots-bkp/”
root 13266 13264 0 21:10 ? 00:00:00 /bin/bash /usr/local/bin/btrfs-sync -qd /media/myCloudDrive/ncp-snapshots/ /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13478 13266 0 21:10 ? 00:00:00 /bin/bash /usr/local/bin/btrfs-sync -qd /media/myCloudDrive/ncp-snapshots/ /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13481 13266 0 21:10 ? 00:00:00 /bin/bash /usr/local/bin/btrfs-sync -qd /media/myCloudDrive/ncp-snapshots/ /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13483 13478 0 21:10 ? 00:00:00 sudo btrfs send -q /media/myCloudDrive/ncp-snapshots/daily_2020-05-28_111708
root 13484 13481 0 21:10 ? 00:00:00 sudo btrfs receive /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13485 13481 0 21:10 ? 00:00:00 /bin/bash /usr/local/bin/btrfs-sync -qd /media/myCloudDrive/ncp-snapshots/ /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13495 13484 24 21:10 ? 00:03:07 btrfs receive /media/NCPBackupDrive/ncp-snapshots-bkp/
root 13496 13483 14 21:10 ? 00:01:55 btrfs send -q /media/myCloudDrive/ncp-snapshots/daily_2020-05-28_111708
root 14620 9917 0 21:22 pts/1 00:00:00 grep ncp-snapshots
root@nextcloudpi:/media/NCPBackupDrive/ncp-snapshots-bkp#