July 14, 2025Jul 14 Hi All,i have been struggling with cache pool problems for a long time now. I keep losing them during operation, which logically leads to problems with all my dockers and VMs. In the meantime I have switched to completely new hardware and the problem is now occurring again. After I deactivated the standby mode for the Chache pool, it worked better, but today I had the problem again. The only solution is to turn off the server and then start it up again, a normal restart does not help. This is very annoying if you are not on site. I would be very grateful for a solution to this problem.I use a NVM from Samsung, previously I had one from WD - same problem. The NVM has no SMART Errors. I tryed already different Filesystems for the Cache, this also make no difference.
July 14, 2025Jul 14 Author I have a syslog file, maybe that will help. The whole thing seems to start at 1:50am on July 14th.unraid_log14072025.txt Edited July 14, 2025Jul 14 by just-magic
July 15, 2025Jul 15 Community Expert Jul 14 01:50:29 unraid-srv kernel: nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffffJul 14 01:50:29 unraid-srv kernel: nvme nvme0: Does your device have a faulty power saving mode enabled?Jul 14 01:50:29 unraid-srv kernel: nvme nvme0: Try "nvme_core.default_ps_max_latency_us=0 pcie_aspm=off pcie_port_pm=off" and report a bugNVMe device dropped offline. Try adding the kernel options mentioned to syslinux.cfg and then reboot, it helps in some cases.
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