A couple of weeks ago I was contacted about an issue with vSphere 5.0. When a VM Storage Profile was disabled / enabled it looked like HA and DRS got disabled as well. After diving in to the problem it appeared that both HA and DRS were still working. It seems that some how the vSphere Client thinks it is disabled. Again, although it looks like it is disabled it is still fully functioning… but indeed it is very confusing. A simple work around would be enabling HA/DRS. This problem has just been published in our Knowledge Base, and hopefully will be addressed soon.