Readynas X6 or 600 Motherboard used?

No spare motherboards.

However if you keep both NAS units on the same firmware as each other it should be possible to recover data from the other if one NAS breaks down (assuming drives are still good): http://www.readynas.com/kb/faq/boot/how_do_i_migrate_disks_over_from_an_existing_readynas_to_another

mdgm wrote:
No spare motherboards. However if you keep both NAS units on the same firmware as each other it should be possible to recover data from the other if one NAS breaks down (assuming drives are still good): http://www.readynas.com/kb/faq/boot/how_do_i_migrate_disks_over_from_an_existing_readynas_to_another

I realize that netgear does not sell spare motherboards however I was under the impression that it used a motherboard from a general motherboard manufacturer. I noticed that one of my devices uses Patriot RAM sticks which can be purchase off the shelf. I was hoping that maybe the motherboard could also be purchased, especially the model which uses standard SATA cables.

Unless you can find a unit on the second hand market, I highly doubt it. The ReadyNAS X6 and 600 use very old hardware. Even if the motherboard was a standard one (I expect it would be a custom one) it would likely be well out of production by now.

Your units came with a 1 year warranty so I would have worried about this well before now. The units are built to last and have lasted for your for several years so far.

If a unit fails (but not the drives) you can recover the data in one of your other Sparc boxes as I mentioned above (try to keep the firmware versions about the same as each other if possible).

If both units fail you could purchase another Sparc unit or recover the data using a PC (see Mounting Sparc-based ReadyNAS Drives in x86-based Linux