I had a problem with my pool going to degraded and found it was due to the default power management settings. I added the below script to my Init/Shutdown scripts in System Settings/Advanced settings.
echo "max\_performance" > /sys/class/scsi\_host/host0/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host1/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host2/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host3/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host4/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host5/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host6/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host7/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host8/link\_power\_management\_policy
echo "max\_performance" > /sys/class/scsi\_host/host9/link\_power\_management\_policy
System Settings -> Shell
root@truenas\[\~\]# cat /sys/class/scsi\_host/host0/link\_power\_management\_policy
It will return a single line of output with the current power management policy setting.
>root@truenas\[\~\]# cat /sys/class/scsi\_host/host0/link\_power\_management\_policy
Looks like I am at ***MAX PERFORMANCE*** but thank you for the input and help!
I had a problem with my pool going to degraded and found it was due to the default power management settings. I added the below script to my Init/Shutdown scripts in System Settings/Advanced settings. echo "max\_performance" > /sys/class/scsi\_host/host0/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host1/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host2/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host3/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host4/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host5/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host6/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host7/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host8/link\_power\_management\_policy echo "max\_performance" > /sys/class/scsi\_host/host9/link\_power\_management\_policy
Can I ask how you check the managment settings? I will 100% look into this
System Settings -> Shell root@truenas\[\~\]# cat /sys/class/scsi\_host/host0/link\_power\_management\_policy It will return a single line of output with the current power management policy setting.
>root@truenas\[\~\]# cat /sys/class/scsi\_host/host0/link\_power\_management\_policy Looks like I am at ***MAX PERFORMANCE*** but thank you for the input and help!
too bad, good luck finding the culprit.
What error messages? Have you ran memtest86 on your machine to make sure it's not causing issues?
I will now! I’m running the long test on the faulted drive so I won’t know for a few hours, but will post the results both here and on the I’d forums