User`s guide

220 Implementing an Open IBM SAN
Enter your desired time settings and apply this by clicking OK as shown in
Figure 3-38.
Figure 3-38 IN-VSN: Setting the director clock
3.3.5 Attaching loop ports
Today, the storage and server industry is moving rapidly towards switched
fabrics. However, there are still a lot of systems that use Loop protocol. For
instance, most tape devices use FC-AL, as well as lots of legacy FC host
adapters.
Of course, some of them could be upgraded or replaced by newer devices to
support native fabric login. However, for financial reasons it might be more
attractive to protect these investments. This can be done using the FC-AL
support features in an INRANGE fabric.
This topic covers:
򐂰 Enabling loop attachment for a specific director port
򐂰 Enabling loop attachment for the entire director
򐂰 Disabling loop devices
򐂰 Understanding differences between private loop and public loop
򐂰 Using Translative Loop ports to let private loop ports talk to the fabric
򐂰 Setting up private targets
򐂰 Setting up private initiators