Looking for feedback on how I have reduced the SD writes on my raspberry Pi2 and openhabian and if they are likely to cause issues in the future as I build the server up to have more abilities. I should stress the main reason for doing this is not wear and tear of the SD card, but instead for reason…

[image] asoltesz: I have been following your advice and minimized the storage load by samba and /tmp. Great let me know what you find as I have been doing this for a long time on multiple projects not just Openhab with great results. [image] asoltesz: Any idea about this? Can it be safel…

I was reading the whole discussion. By testing my openhabian. I found only the logs to be really active in Writting, most of other files use read. I did Move the logs on a remote location. I covered this on another thread as HOW TO. But only for openhab logs. not system. By testing my system, the…

[image] billias: Next step is to use overlayfs to force all changes to move to USB thumb drive. And not on This way I can mount the sdcard as readonly. Be aware that USB flash drives use the exact same technology as SD cards so if your persistence is storing important data, it too is at risk…

I have no important data, but also Nightly backups if no io issues exist. I also plan to test the new USB SSD from sandisk for important stuff

Newer writes that have started in my Ubuntu based setup since this guide was first written: /run/samba/msg.lock/ (multiple files) /var/lib/mosquitto/ (mosquitto.db and mosquitto.db.new) /var/lib/ntp/ (ntp.drift.TEMP and ntp.drift) /var/lib/openhab2/jsondb/org.eclipse.smarthome.config.discovery.D…

Thanks for this post. By following this I was able to transfer my logging and persistance to an external flash drive. However initially mosquitto was not working. But after creating a “mosquitto” folder in log folder it started working.

It may not be worth all of the trouble now that SanDisk > Western Digital is now making MicroSD cards exactly for HDD replacement applications, including fast, high-endurance SLC, plus a wear-leveling controller all in one MicroSD package. About $25 per 16 GB. https://documents.westerndigital.com…

[image] karlfife: It may not be worth all of the trouble now that SanDisk > Western Digital is now making MicroSD cards […] high-endurance SLC, plus a wear-leveling controller Promises to be making. Most cards already do wear-levelling BTW. If you want to rely in that, feel free. For every…

There’s a lot more to HDD-class flash storage than Wear leveling, e.g. SLC among others differences in controller logic. I consider this cheap marginal improvement in availability no matter your setup.

[image] Avinash_Hirekerur: Thanks for this post. By following this I was able to transfer my logging and persistance to an external flash drive. There are better options out there. OpenHabian if you have RPi … while if you are on Odroid or something similar, check Armbian | openHAB All reaso…

Reducing SD card writes with openhabian

Hardware Server

mstormi (Markus Storm) January 19, 2020, 11:01pm 22

Promises to be making. Most cards already do wear-levelling BTW.
If you want to rely in that, feel free.
For everybody else there’s now ZRAM available in openHABian.