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2 – Getting Started
Terminology
2-6 PRELIMINARY SN0054614-00 F
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2.4
Terminology
Some of the terms used in this guide are similar and some have changed slightly
as technology changes. The following definitions apply:
HBA Port
HBA Port refers to the actual physical port on an HBA. For example, a
QLA2462 has two ports called HBA port 1 and HBA port 2.
HBA Instance, HBA Instance number, or HBA Port Instance
When you install HBA in a system with other HBAs, each HBA port gets
assigned a number by the driver or API so it knows which HBA to
communicate with. This assigned number might be called HBA Instance, HBA
instance number, or HBA Port Instance.
HBA Alias
When an alias is assigned to a physical HBA, no matter how many ports that
HBA has, the HBA Alias refers to the HBA, not one of its ports.
Port Alias
You can also assign an alias to an individual port on an HBA. This Port Alias
refers to only that port and none other.
Thus, an HBA can only have one HBA Alias, but each port on that HBA must,
have a unique Port Alias.