11-03-2016 07:30 AM
I am using 8Gb HBAs in my servers with 8Gb switches and 8Gb storage arrays and everything is fine (single initiator- target zoning). Now, I have the chance to include a old but large 4Gb Storage using the same zone pattern, but I am not sure if my HBAs will distinguish between the 4Gb and the 8Gb storages. I mean, I guess the HBA will use 4Gb link speed when accessing the 4gb storage and 8Gb link when accesing the 8Gb storage. Am I right?
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11-03-2016 08:42 AM
your HBA will be running at 8GB as it is connected to the switch at 8GB. It will not switch down to 4GB when talking to the 4GB storage. The switch which is sitting between the 8GB HBA and 4GB storage, will be receing the frames at 8GB from HBA and send it out at 4GB to the storage at 4GB. And vice versa for the other direction.