11-01-2018, 08:26 AM
The webserver hosting this Forum underwent a performance and cooling update yesterday afternoon (Wed 11Jan18) such that the forum was off-line for about 1 hour between about 0420 to 0520 UTC.
The computer was upgraded to a quad-core processor to ensure that linux Load Average values were well below the point where heavy usage would cause a slowdown on serving web pages.
The air flow and thus cooling of the hard drive assembly was also improved after noting drive temperatures into the mid-50 degree C values during the heat last week. The first-up temperatures today were 31C although that will probably rise to the mid-30s as more user and disk activity is required. The aim is to keep these temps under 40C with the introduction of a PICAXE based fan controller using a thermistor attached to the primary HDD case and a high air-flow fan, where the duty cycle of the "DC" power to the fan is varied between about 30% and 100% depending on thermistor temperature sensing. So far it seems to be working well.
The computer was upgraded to a quad-core processor to ensure that linux Load Average values were well below the point where heavy usage would cause a slowdown on serving web pages.
The air flow and thus cooling of the hard drive assembly was also improved after noting drive temperatures into the mid-50 degree C values during the heat last week. The first-up temperatures today were 31C although that will probably rise to the mid-30s as more user and disk activity is required. The aim is to keep these temps under 40C with the introduction of a PICAXE based fan controller using a thermistor attached to the primary HDD case and a high air-flow fan, where the duty cycle of the "DC" power to the fan is varied between about 30% and 100% depending on thermistor temperature sensing. So far it seems to be working well.
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.
http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.