AS3102T Which is Drive 2

[jcahow]

I have been getting warning about Drive 2 failing in my AS3102T NAS. It contains two 3TB WD Red NAS drives and I have purchased an identical drive to replace the failing one.

When I opened the case to replace the failing drive I am unclear which drive looking down from the top is actually Drive 2 as I did not see any markings.

I just just wondering if anyone can verify whether the top or bottom drive is Drive 2 without just randomly replacing one (I am guessing it is the lower drive)?

[jcahow]

Drive 2 is on the top as you slide the side case off.

[orion]

When NAS stands up normally, the first drive is the most left side.