Brocade Communications Systems A7990A - StorageWorks SAN Director 4/16 Blade Switch Manual page 12

Glossary
DLS
Dynamic load-sharing or dynamic distribution of traffic over available paths. Allows for recomputing
of routes when an Fx_Port or E_Port changes status. The device-based and exchange-based routing
policies depend on the Fabric OS Dynamic Load Sharing feature (DLS) for dynamic routing path
selection.
DMC Data migration console. The graphical user interface to the DMM appliance. See also
DMM
A Brocade product that provides hardware-assisted data migration from one storage device to another
appliance
across a SilkWorm switch. It enables the migration of data from multiple storage devices
simultaneously across multiple fabrics. The software portion of the DMM appliance is layered onto the
Brocade Storage Application Services (SAS). The DMM appliance requires the SilkWorm AP7420 as a
hardware platform. See also
domain A domain controller (or embedded port) that communicates with and gets updates from other switches'
controller embedded port, in order to assign domain numbers that do not conflict with the domains numbers
currently used in the fabric to new switches. The well-known address is fffcdd, where dd = domain
number.
domain ID A unique numeric identifier for each switch within a fabric used in routing frames. Usually
automatically assigned by the principle switch but can be assigned manually.
dynamic load- See DLS.
sharing
E
E_D_TOV
Error-detect timeout value. The minimum amount of time a target waits for a sequence to complete
before initiating recovery. Can also be defined as the maximum time allowed for a round-trip
transmission before an error is declared. See also
E_Port
A switch port that has been connected to another switch to form an ISL. See also ISL.
ECCN Export classification control number. A government classification of encryption. For example, SSH is
in the high-encryption category (number 5x02) and therefore has certain restrictions regarding its
transfer.
edge fabric A Fibre Channel (FC) fabric connected to an FC router or FR4-18i AP blade via an EX_Port.
EE_Credit
End-to-end credit. The number of receive buffers allocated by a recipient port to an originating port.
Used by Class 1 and 2 services to manage frame exchange across the fabric, between source and
destination. See also
effective zone
A subset of the defined zone configuration, containing only the zone configuration objects that are
configuration currently enabled. Only one configuration can be active at a time, but multiple configurations can be
defined in the database. See also
EIA rack
A storage rack that meets the standards set by the Electronics Industry Association (EIA).
ELP Exchange link parameters.
8
LU path, extent pair, and
BB_Credit and end-to-end flow
defined zone configuration.
migration set.
R_A_TOV and RR_TOV.
control.
Publication Number: 53-1000040-03
DMM appliance.
Brocade Glossary