Hi all,
While running the https://www.ixsystems.com/community/resources/solnet-array-test.1/
script on FreeNAS, I had some very weird behaviour during the seek-tress-read test (which uses dd and takes about a week to complete).
During the test my IPMI and network interfaces became unreachable (only an existing ssh connection remained open for a couple more days, after that it also crashed when running some command and I had to power off the server completely).
The 3 HDDs from the screenshots were the only ones that completed the test, the other 5 throttled even for longer periods...
The dd command did continue to run though after it became unreachable and completed on all 8 HDDs after some more days (but I was no longer able to take screenshots in the GUI).
etc
After thinking it through, this (the yellow) looks very much like something is throttling, but it seems to throttle not all 8 HDDs the same amount at the same time, rather it throttled them "inconsistently"...
I was wondering if that could have been my HBA that was throttling? It would make sense, as it is in desktop case, with only very little airflow (600rpm PSU fan at 13cm and 1000rpm case fan at 30cm with HDDs in between).
In mean time, I've tried to replace the heatsink on HBA, but I broke of resistor Although I managed to solder it on again (extremely badly) and although the HBA still seems to work fine, I no longer trust it and I'm looking to replace it...
As I hate high rpm small fans, I've created a 120mm fan holder to get some airflow on my future HBA
But... I'm still searching for some more certainty on what the hell happened that weird day... So anyone know if these HBAs can throttle?
While running the https://www.ixsystems.com/community/resources/solnet-array-test.1/
script on FreeNAS, I had some very weird behaviour during the seek-tress-read test (which uses dd and takes about a week to complete).
During the test my IPMI and network interfaces became unreachable (only an existing ssh connection remained open for a couple more days, after that it also crashed when running some command and I had to power off the server completely).
The 3 HDDs from the screenshots were the only ones that completed the test, the other 5 throttled even for longer periods...
The dd command did continue to run though after it became unreachable and completed on all 8 HDDs after some more days (but I was no longer able to take screenshots in the GUI).
etc
After thinking it through, this (the yellow) looks very much like something is throttling, but it seems to throttle not all 8 HDDs the same amount at the same time, rather it throttled them "inconsistently"...
I was wondering if that could have been my HBA that was throttling? It would make sense, as it is in desktop case, with only very little airflow (600rpm PSU fan at 13cm and 1000rpm case fan at 30cm with HDDs in between).
In mean time, I've tried to replace the heatsink on HBA, but I broke of resistor Although I managed to solder it on again (extremely badly) and although the HBA still seems to work fine, I no longer trust it and I'm looking to replace it...
As I hate high rpm small fans, I've created a 120mm fan holder to get some airflow on my future HBA
But... I'm still searching for some more certainty on what the hell happened that weird day... So anyone know if these HBAs can throttle?
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