Compaq StorageWorks Data Replication Manager HSG80 ACS Version 8.5P Operations Guide

G–16 Compaq StorageWorks Data Replication Manager HSG80 ACS V8.5P Operations Guide
VCI An abbreviation used to express virtual channel identifier. The VCI is the
field of the cell header that stores the virtual channel address.
VPI An abbreviation used to express virtual path identifier. The VCI is the field of
the cell header that stores the virtual path address.
Worldwide name
or
Worldwide ID
A unique 64-bit number assigned to a subsystem by the Institute of Electrical
and Electronics Engineers (IEEE) and set by manufacturing prior to shipping.
This name is referred to as the node ID within the CLI.
write history logging As applied to the Data Replication Manager: write history logging is a term
describing the use of a log unit to log a history of write commands and data
from the host. Write history logging is used for mini-merge and fast-
failback.
See mini-merge and fast-failback
WTI Switch An abbreviation for the Western Telematics Switch that must be installed to
set up and service the ATM gateway. The WTI switch is a 16-port serial
switch that is used to configure or service the OSG unit locally or remotely.