The NEMS Migrator tool allows you to export/backup your NEMS configuration (backup.nems) as well as import a previous backup (through the Restore option).
The NEMS Migrator backup and restore options are great for keeping a safe backup without having to shutdown your NEMS server. Just download the file once in a while, or back it up automatically with your daily backup script.
NEMS Migrator is also helpful when upgrading from previous versions of NEMS, or when moving from one platform to another, saving you having to reconfigure your NEMS deployment just to get the latest features or upgraded hardware.
I am a firm believer in redundancy, and protecting your data. What I'd like you to do is, export your migration file, then install NEMS on a new MicroSD card. Then boot from that and restore your NEMS Migrator backup. Once you've confirmed everything worked well, you can deprecate the old one safely. However, if something went wrong, you can contact me to fix it for you, and continue running from the old SD card in the interim.
While you can use NEMS Migrator to backup any version of NEMS (and even NagiosPi) the restore feature requires NEMS 1.2+
sudo nems-restore /mnt/flash/backup.nems
This requires an active NEMS Migrator Off-Site Backup account.
sudo nems-restore osb
Your OSB account is tied directly to your NEMS server hardware. Therefore, if you change your hardware, a direct restore will not be possible. In that case, you must contact me directly for assistance.
If you have any problems (or praise) please post in the NEMS Linux community forum.