[SOLVED] Persistence lose all data after restart

[AnnaM (Anna)]

Hi Rich,

thank you for your answer.
Oh, okay: zram is enabled by default in the new version of openhabian. I din’t know that. But how can I persist all values after a restart or a power cut or failure?

ZRAM status

This article is to track and document the current status of the ZRAM feature in openHABian. I’ll update it if there’s significant news. What is ZRAM and how does it work ? The ZRAM config utility for swap, directory & log is an OS enhancement for IoT / maker projects for reducing SD, NAND and eMMC block wear caused by write operations such as logging and persistence in openHAB. It uses compression to minimise precious memory footprint and extremely infrequent write outs and near RAM speed work…

In this thread they are talking about Amanda to save the persistance files. How can I do that and is it the right way to do?

ZRAM status

Yes but that’ll stop OH so I would avoid that, too. Combine ZRAM with backup (Amanda in openHABian) to save the files on ZRAM of interest (persistence), the rest is irrelevant so no real loss when you lose them. No, OH cache is no longer on ZRAM (presuming you use a recent definition of ZRAM dirs in ztab, see openHABian config).