HBA configuration issues

Host bus adapters (HBAs) have many different configuration settings and options.

The HBA vendor typically provides information about the settings for your HBA and the appropriate values for these settings. Similarly, the HBA vendor might provide a utility and other instructions on how to configure your HBA. The following settings typically affect the use of IBM Storage Protect with a SAN:

Storage area network (SAN) topology
The HBA must be set appropriately, based on the currently used SAN topology. For example, if your SAN is an arbitrated loop, the HBA must be set for this configuration. If the HBA connects to a switch, this HBA port must be set to point-to-point and not loop.

With IBM Storage Protect SAN Device Mapping, you can complete SAN discovery on most of the systems and the persistent binding of the devices are not required. An IBM Storage Protect server can find the device if the device path was changed because of a restart or other reason.

Go to the Support Portal to verify the platform/HBA vendor/driver level support for IBM Storage Protect SAN discovery.
Fibre Channel link speed
In many SAN topologies, the SAN is configured with a maximum speed. For example, if the Fibre Channel switch maximum speed is 1 GB/sec, the HBA must also be set to this same value. Or the HBA must be set for automatic (AUTO) negotiation if the HBA supports this capability.
Is Fibre Channel tape support enabled?
IBM Storage Protect requires that an HBA is configured with tape support. IBM Storage Protect typically uses SANs for access to tape drives and libraries. As such, the HBA setting to support tapes must be enabled.

Linux operating systems AIX operating systems To help with problem determination, you can use the dsmsanlist module to obtain information about devices on a storage area network (SAN). The dsmsanlist module is installed by default when the IBM Storage Protect server or the IBM Storage Protect storage agent is installed.