I am new to unraid & currently building my first setup. I have a pair of 1TB SSD drives for my cache poole with currently about 262GB used & 738GB free so far. I installed SSD Trim & scheduled it to run nightly at 1am. After the 1st run last night my VM stopped working and I am unable to open or write files in the cache pool. 

 

Fix Common Problems found the following errors:

Unable to write to cache - Drive mounted read-only or completely full

Unable to write to Docker Image - Docker Image either full or corrupted

 

When I try to run my VM I get the following error message:

Hook script execution failed: internal error: Child process (LC_ALL=C PATH=/bin:/sbin:/usr/bin:/usr/sbin HOME=/ /etc/libvirt/hooks/qemu BitTorrentVM prepare begin -) unexpected exit status 126: libvirt: error : cannot execute binary /etc/libvirt/hooks/qemu: Input/output error

 

If I try to edit the VM I get the following error message:

VM creation error
cannot create file '/etc/libvirt/qemu/BitTorrentVM.xml.new': Read-only file system

 

I tried to run a btrfs scrub but nothing happens and the scrub status is immediately aborted

 

I've attached my diagnostic file

 

unraidsvr-diagnostics-20200623-1037.zip

Problem with the Asmedia SATA controller that ended up dropping both cache devices:

 

Jun 23 02:54:05 UnRAIDSVR kernel: DMAR: [DMA Read] Request device [0a:00.0] fault addr 7fffff00000 [fault reason 06] PTE Read access is not set
Jun 23 02:54:35 UnRAIDSVR kernel: ata1.00: exception Emask 0x0 SAct 0x3c0007e SErr 0x0 action 0x6 frozen
...
Jun 23 02:55:31 UnRAIDSVR kernel: ata2: softreset failed (1st FIS failed)
Jun 23 02:55:31 UnRAIDSVR kernel: ata2: limiting SATA link speed to 3.0 Gbps
Jun 23 02:55:31 UnRAIDSVR kernel: ata2: hard resetting link
Jun 23 02:55:35 UnRAIDSVR kernel: ata1: softreset failed (1st FIS failed)
Jun 23 02:55:35 UnRAIDSVR kernel: ata1: reset failed, giving up
Jun 23 02:55:35 UnRAIDSVR kernel: ata1.00: disabled
...
Jun 23 02:55:36 UnRAIDSVR kernel: ata2: softreset failed (1st FIS failed)
Jun 23 02:55:36 UnRAIDSVR kernel: ata2: reset failed, giving up
Jun 23 02:55:36 UnRAIDSVR kernel: ata2.00: disabled
Jun 23 02:55:36 UnRAIDSVR kernel: ata2: EH complete

Try using the Intel ports instead.

Temporarily moved cache drives to usb docking stations until I can free up more internal SATA ports. Cache Pool is working again. Thanks!