DieselDragon, Welcome to ProCooling.
Glad you got the 1100 up and running. From debug run "de memory" cmd will tell you how much ram you have. But all of the Snap 1100's, having the firmware on the HD have 64meg of memory. If you click on the "Snap Appliance" logo on the upper left corner of the admin page will give you some more info on software and hardware. Platformbyte is the specific hardware build. All 1100 are reported as 1000's, = 1 HD.
The SnapOS uses a highly modified XFS file system, so most everything can not read it except another snap. YES these units are very slow, with only a 100baseT port, Max 6-8Mb/sec on a good day. I think all of the speed data is in the FAQ's I put together many many years ago. If you are at V3.4.803 or less LBA48 is not supported. 3.4.807 and greater does support LBA48. Since Overland as released this SnapOS to public you can post up a link of your disk image if you have a place to keep it for general public access. I would also post the link to Overland for the upgrade to v4 along with it. You only need the first 20-40 meg of the HD. Let the Snap format/init the hd for use then do the v4 update.
Take your original HD and store it since it will boot and test your image on another HD. Then do the v4 update, init the HD and you should be off and running. Then re-image your HD if you want. Remember these are no where what you would call fast, maybe a slower slow. Hardware design for Win98 era. This is one reason these units are being dumped and are not fully compatable with the newer OS's.
If you brick a snap you can not correct it buy just reinstalling the OS. It's a HW issue since the platform byte was change. You can in the most part use a 2 headed IDE cable and connect 2 HD's. This works on some but not all depending on platformbyte. Be warned these old units do not have a HD power supply so minimize your power cycles, these are design for 24/7 operation. If your going to use large HD's you may want to consider another ps. Keep under 4 platters in the most part you will be fine if you do not turn it off/on every day. The second port is a diagnostic port if I recall. Now there was some 1100's that had the 2200 MB with the second header installed, but these are far and few between.
If you have not done so read the FAQ's, link in my sig.