Question : Problem: Using Cisco 3560\3750 SFP port for Tape Library

I am going to be setting up a tape library. I am told with the library that I'm getting that there are two ways to set it up,

[svrs to be backed up]----->thru the lan---->[backup svr]--->SCSI--->[tape library]

or

[fiber nic]------>[fiber bridge]------>[tape library]

My question is, can I use a cisco switch (3560\3750) and plug the tape library in one of the spf ports on it?

I want to buy the switch to act as the 'fiber bridge' and since it's a gb switch and all the servers have gb nics, i just want them to have a gb connection to the tape library which itself is connected by fiber.

Also, in buying the switch, it says the SFP ports are empty, do I need to purchase a specific gbic or fiber module to plug into the spf port? And i'm assuming this module will depend what type of fiber connection is coming off the tape library, would that be correct? like SC to LC or someting another

Answer : Problem: Using Cisco 3560\3750 SFP port for Tape Library

You may have installed the TS CAL's as Device CAL's (its easy to do). The type of the TS CAL's (user or device) that are registered have to be the same as the TS License mode (user or device) that the server is in. If there's a mismatch, the mismatched TS CAL's get ignored.

The Terminal Services Licensing application (in Administrative Tools) should show you what's what.

If the TS CAL's have been installed as Device CAL's, you'll need to contact Microsoft's TS Licensing hotline. They'll get you to uninstall the licenses, and then issue you with new licenses.