Problem solve Get help with specific problems with your technologies, process and projects.

Compatibility issues

I have Brocade SilkWorm 2400 with all FC ports 1 GB. How can I use it if I'm going to use 2 GB Fibre storage products?...

Are all 2 GB Fibre controllers compatible with all 1 GB controllers? Do I need a converter? The 2 GB spec was written so that all 2 GB products would be compatible with 1GB products. A 2 GB product will autosense the 1 GB data rate and work at 1 GB.

Now, if your switch is at 1 GB and everything connects through the switch, then everything will run at 1 GB. This may not be such a big deal depending on how you plan to export LUNs through a single port on a storage subsystem (what some people refer to as oversubscribing -- it is probably more accurate to call it multiplexing).

The point is that several host systems may access several different LUNs through a single port and target address. If you planned to do this with 2 GB equipment in a subsystem, this could be a problem for you.


Update from editor:
Question: Mr. Farley, no switch can support such speed as 1 GB, it should be 1 Gbit.

Answer: Yes, the current transmission rates are in G bits, not G bytes.

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.

This was last published in April 2003

Dig Deeper on SAN technology and arrays

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.