IBM Flex System FC5024D User Manual page 16

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Features and specifications
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NOTE
This feature is not available for direct-attached targets.
LUN masking:
LUN masking establishes access control to shared storage to isolate traffic between different
initiators that are zoned in with the same storage target. LUN masking is similar to zoning, where a
device in a specific zone can communicate only with other devices connected to the fabric within
the same zone. With LUN masking, an initiator port is allowed to only access those LUNs
identified for a specific target. Plus, the LUN masking configuration is stored persistently across
driver loads and system reboots.
Enable LUN masking on an adapter physical port through the HCM Basic Port Configuration
dialog box and the BCU fcpim –lunmaskadd command to identify the logical port (initiator) and
remote WWN (target) for the LUN number. Refer to the Brocade Adapter Administrator's Guide
for more information on configuration.
You can also enable or disable LUN masking through the Brocade BIOS Configuration Utility or
your system's UEFI setup screens.
This feature has following limitations:
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Only 16 LUN masking entries are allowed per physical port.
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Multiple BCU instances for adding and deleting LUN masking are not supported.
You can configure LUN masking for a particular target even without the actual devices being
present in the network.
When configuring boot over SAN, mask the boot LUN so that the initiator has exclusive access to
the boot LUN. Refer to the Brocade Adapters Administrator's Guide for more information.
Support for Hyper-V. Hyper-V consolidates multiple server roles as separate virtual machines
(VMs) using the Windows Server 2008 operating system and provides integrated management tools
to manage both physical and virtual resources.
Support for Windows Server Core, a minimal server option for Windows Server 2008 operating
systems that provides a low-maintenance server environment with limited functionality. All
configuration and maintenance is done through command line interface windows or by connecting
to a system remotely through a management application. Windows Server Core is supported by
Windows Server 2008 adapter drivers.
Support for MSI-X, an extended version of Message Signaled Interrupts (MSI), defined in the PCI
3.0 specification. MSI-X helps improve overall system performance by contributing to lower
interrupt latency and improved utilization of the host CPU. MSI-X is supported by Linux RHEL 5,
RHEL 6, SLES 10, SLES 11, Windows 2008, and ESX Server 4.0, 4.1, and 5.0.
Point-to-point topology.
Management support for Storage Management Initiative Specification (SMI-S).
Fibre Channel-Security Protocol (FC-SP) providing device authentication through key
management.
Forward Error Correction (FEC) provides a method to recover from errors caused on links during
data transmission.
FEC works by sending redundant data on a specified port or range of ports to ensure error-free
transmission. FEC enables automatically when negotiation with a switch detects FEC capability.
Although you cannot enable or disable FEC on adapters manually, you can enable FEC on Brocade
switches using appropriate Fabric OS commands.
IBM Flex System FC5024D 4-Port 16Gb FC Adapter User's Guide