Short for host bus adapter. An HBA is an I/O adapter that sits between the host computer's bus and the Fibre Channel loop and manages the transfer of information between the two channels. In order to minimize the impact on host processor performance, the host bus adapter performs many low-level interface functions automatically or with minimal processor involvement.
Getting Failover Right It's not easy, but with a little planning and testing, host bus adapter and
RAID failover can be done without hurting performance.
