I realize that this question brings to light a "blast from the past." The S500 is my first foray into NAS administration. I was so happy with the pair of S500s that when they were no longer available, I didn't look to any other manufacturer than NetApp when it came time to upgrade with the additional storage that the FAS2020 provided.
I have an aging S500 that has become unreliable. I'm looking for some local support to troubleshoot the issue I'm having regarding reliability and the company I work for is willing to pay to have it repaired, if necessary.