IBM Brocade, Инструкция по установке и эксплуатации

Страница: 21 / 74

Introduction 9
Features, specifications, and standards
1
FCoE features
The Brocade 2-Port 10GbE Converged Network Adaptersupport the following Fibre Channel over
Ethernet (FCoE) features:
•
500,000 IOPS per port for maximum IO transfer rates.
•
10 Gbps throughput per port full duplex
•
Target rate limiting. You can enable or disable this feature on specific ports. Target Rate
Limiting relies on the storage driver to determine the speed capability of a discovered remote
ports, then uses this information to throttle FCP traffic rate to slow-draining targets. This
reduces or eliminates network congestion and alleviates I/O slowdowns at faster targets.
Target rate limiting is enforced on all targets that are operating at a speed lower than that of
the target with the highest speed. If the driver is unable to determine a remote port’s speed, 1
Gbps is assumed. Target Rate Limiting protects only FCP write traffic.
•
N_Port ID Virtualization (NPIV). This allows multiple N_Ports to share a single physical N_Port.
This allows multiple Fibre Channel initiators to occupy a single physical port and reduce SAN
hardware requirements.
•
Boot over SAN. This feature provides the ability to boot the host operating system from a boot
device located somewhere on the SAN instead of the host’s local disk or direct attached
storage. Specifically, this “boot device” is a logical unit number (LUN) located on a storage
device.
•
Fabric-based boot LUN discovery, a feature that allows the host to obtain boot LUN information
from the fabric zone database. Fabric OS 6.2 is required on adjacent switches to support this
feature.
•
Persistent binding. This enables you to permanently assign a system SCSI target ID to a
specific Fibre Channel device.
•
Fibre Channel-Security Protocol (FC-SP) providing device authentication through key
management.
•
FCoE Initialization Protocol (FIP) support for the following:
-
FIP 2.0
-
preFIP and FIP 1.03
-
FIP Discovery protocol for dynamic FCF discovery and FCoE link management.
-
FPMA FIP fabric login.
-
FIP VLAN discovery.
-
FIP discovery solicitation and FCP discovery.
-
Login (FIP and FCoE).
-
FIP link down handling.
-
FIP version compatibility.
-
FIP keep alive
-
FIP clear virtual links
NOTE
The Brocade 2-Port 10GbE Converged Network Adapter FIP logic automatically adapts to the
adequate FIP version and preFIP to enable backward compatibility.