This was a nightmare when the TS-410 went down. I currently don’t know what has happened. This post contains links to articles which have shed more light on the issues I believe I’m dealing with.

Taken from support documents created by QNAP Taiwan:

http://qnapsupport.net/?s=raid+inactive

http://qnapsupport.net/?page_id=1870

http://qnapsupport.net/?page_id=1875

Taken from the QNAP support forums:

http://forum.qnap.com/viewtopic.php?p=280817

http://forum.qnap.com/viewtopic.php?t=1921

Useful ssh commands:

http://www.siteground.com/tutorials/ssh/ssh_listing.htm