Glossary 869
In-band Signaling This is signaling that is
carried in the same channel as the
information. Also referred to as in-band.
In-band virtualization An implementation in
which the virtualization process takes place in
the data path between servers and disk
systems. The virtualization can be
implemented as software running on servers
or in dedicated engines.
Information Unit A unit of information defined
by an FC-4 mapping. Information Units are
transferred as a Fibre Channel Sequence.
initial program load (IPL). (1) The
initialization procedure that causes an
operating system to commence operation. (2)
The process by which a configuration image is
loaded into storage at the beginning of a work
day, or after a system malfunction. (3) ...