Hi,
I just walked into the same issue as you. I have to redo a failed ix2-200 for a small municipality that is being used as a backup location. This is what I found and what you most likely need to do.
First a useful link:
The manual-
http://iomega.com/support/manuals/ix-series/221-0809/en/consolidated/main.html#ix2200
My thoughts-
The most likely reason you can't see anything useful in the Web UI/Storage manager is because you don't have the proper Administrator Credentials to make changes to the NAS. Note that not all Admin accounts are created equal
To get the proper credentials I had to reset the NAS completely. Here is how I did it.
STEP 1 -
BACK UP YOUR DATA
Do as others have suggested and power down the system. Pull both hard drives. test for the working drive and backup everything to another location. Then replace any bad drive/drives. Because of the importance of the information on the unit I'm working on, I replaced both drives with identical ones just as a best practice, as I have a feeling it was handled roughly while it was running (the bad drive sounded like it had a head failure). Once you have determined that you have two functioning drives reinstalled in the NAS proceed to step 2.
STEP 2 -
RESET THE NAS TO FACTORY DEFAULT
*** THIS WILL MOST LIKELY WIPE YOUR DATA***
For this process you will need the NAS plugged in.
NOTE: Do NOT plug in cat5 cable yet.
Use a paperclip to push in the small reset button on the back of the NAS for 15 seconds. It is located right above the USB port on the back of the unit. Make sure you feel the button click in and stay down for the duration( i had to do it a couple different times).
STEP 3 -
Download & Install the latest version of storage manager from Lenovo:
LenovoEMC Storage Manager Version 1.4.4.14439 -
http://forums.lenovo.com/t5/Iomega-Network-Storage-Knowledge/Released-LenovoEMC-Storage-Manager-Version-1-4-4-14439/ta-p/1264711
STEP 4 -
Once you have Storage manager up and running and the NAS reset you will need to plug in the Ethernet Cable between your NAS and Router/Computer. Wait until your NAS pops up in Storage Manager. Your NAS will have a name like STORAGE or a name previously given to it.
The NAS will also have an IP address assigned to it. Once it has an IP adress you can double click on the picture of your NAS (ix- series device) in Storage Manager and it will open the Web UI.
STEP 5 -
You will then need to set up the NAS as per the manual linked to above.
Hope this helps!
As a side note, if you are truly skilled and fearless here is a link to the latest firmware and instructions... Don't Chance it if you're afraid of Bricking your box.
StorCenter ix2-200 Firmware Version 2.1.42.18967: Read First-
https://lenovo-na-en.custhelp.com/app/cust_alp/p/1031,1071/search/1