Your question is not very specific about WHAT software exactly you are talking about. If you mean "path failover" software, then the answer is NO. The failover agent must be on the host connected to its storage to control failover due to a bad HBA in the server.
If you mean SAN management software, then the answer is maybe. It depends on the vendor. Some vendors use "out-of-band" management for the storage arrays meaning a non-SAN connected server can "talk" to the array via its IP connected service processor. Other vendors require a server connected to the storage "in-band" over Fibre in order to issue commands to the array. Most let you do both or either.
If what you mean is virtualization type control, then an agent MAY be required on the application server. If the virtualization method is "in-band", meaning all requests go through the Fibre to a server front ending at a disk, then it may not need an agent. Again, depending on the vendor. Most "out-of-band" virtualization engines require either an intelligent HBA or an agent on the host.
So I guess my answer is the same one you would get if you asked any consultant. "It depends."
Editor's note: Do you agree with this expert's response? If you have more to share, post it in one of our .bphAaR2qhqA^0@/searchstorage>discussion forums.
Dig deeper on SAN management
Related Q&A from Christopher Poelker
SAN expert Chris Poelker discusses how to change the size of a LUN in a Microsoft cluster server environment.continue reading
SAN expert Chris Poelker compares connecting a SAN with wavelength cabling and dark fiber and discusses the pros and cons of each.continue reading
Storage expert Chris Poelker outlines WWN basics in order to answer the question: "Why do HBAs in a SAN have same base?"continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.