My ReadyNAS 104 locks up about 2-3 times per week with an SMB2_read+d4 Error on the display. In a previous thread for a different poster (now closed) I saw a response that the cause was a system drive (https://community.netgear.com/t5/forums/searchpage/tab/message?q=smb2_read%20d4&collapse_discussion=...) but that answer seems incomplete. In my case there are (4) 2 TB drives in the NAS setup in a RAID5 configuration running firmware 6.9.3, the system error log doesn't identify any errors relating to any of the drives, the current status is "healthy" , all the drives and CPU are operating in a normal temperature range. If one of the drives is failing during a backup job or something like that, how can I determine which drive has the error if the device locks up before it can make a log entry? Is my only recourse to replace a drive, let it rebuild, and then see if the error occurs again (and then try a different drive until I have swapped out all 4?). Is there any diagnostic test that can identify which drive may be failing?
Model: RN10400|ReadyNAS 100 Series 4- Bay (Diskless)
You may provide to us the complete system logs of the NAS so we can further check what caused the error. Please check this link on how you can send it.
