<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Hi Mike.<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>I run a few repeaters on RPi and use a similar process to the one described here </span><a href="https://medium.com/@andreas.schallwig/how-to-make-your-raspberry-pi-file-system-read-only-raspbian-stretch-80c0f7be7353">https://medium.com/@andreas.schallwig/how-to-make-your-raspberry-pi-file-system-read-only-raspbian-stretch-80c0f7be7353</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Basically the SD card is in read-only mode the majority of the time and all logging etc., is done to RAM disk. The downside is that logs are lost after a reboot but you could always have a script that copies them somewhere periodically. In 2+ years of running repeaters this way, I have never needed to though. I also only ever use high-endurance cards from decent manufacturers! <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>You will likely want to do this for /spider/data though so any data isn’t lost between reboots.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Another option that I have also used is a Pi Desktop case <a href="https://www.pcworld.com/article/3197985/the-pi-desktop-kit-transforms-your-raspberry-pi-into-a-stylish-ssd-powered-mini-pc.html">https://www.pcworld.com/article/3197985/the-pi-desktop-kit-transforms-your-raspberry-pi-into-a-stylish-ssd-powered-mini-pc.html</a> this allows you to install an mSATA SSD which you can then install Rapsbian on. It has the added benefit that typically mSATA drives are significantly faster than most SD cards.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>73 Phil M0VSE<o:p></o:p></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US>From:</span></b><span lang=EN-US> Dxspider-support <dxspider-support-bounces@tobit.co.uk> <b>On Behalf Of </b>Michael Walker via Dxspider-support<br><b>Sent:</b> 30 March 2020 13:37<br><b>To:</b> The DXSpider Support list <dxspider-support@tobit.co.uk><br><b>Cc:</b> Michael Walker <mike@portcredit.net><br><b>Subject:</b> [Dxspider-support] RPI 4 settings for reduced writes to SD card<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Hi All<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>A few weeks ago I moved my Cluster over to a RPI4 where it hums along nicely. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>I know from many weather stations that the SD card will go into a read only state in about 6-9 months as writes start to fail. Running IOTOP tells me what we do significant writes to the card.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Does anyone have a list of things they do to minimize the writes? <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>On my list I have:<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><ol start=1 type=1><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-family:"Arial",sans-serif'>Turn off the swap space<o:p></o:p></span></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-family:"Arial",sans-serif'>Move /spider/data to a RAM disk<o:p></o:p></span></li></ol><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Anything else?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Mike va3mw<o:p></o:p></span></p></div></div></div></div></body></html>