SANsurfer FC HBA Manager User’s Guide Management Tool for QLogic FC and FCoE Adapters
S
HBA port beacon
A SANsurfer FC HBA Manager feature that enables you to flash the adapter's LED to locate the adapter in your computer.
IOCB
I/O Control Block. A command structure in QLogic ISP architecture.
Ioctl
Input/output (I/O) control. A system call found on Unix/Linux systems, allowing an application to control or communicate with a device driver outside the usual read/write operations.
IP
Internet Protocol. A method by which data is sent from one computer to another over the Internet. IP specifies the format of packets, also called datagrams, and the addressing scheme.
iSCSI
Internet Small Computer Systems Inter- face.
ISP
Intelligent Storage Peripheral. QLogic trademark and family of Fibre Channel and iSCSI controller chips that replace network interface chips in network adapters, servers, and storage.
JBOD
Just a Bunch Of Disks.
JNLP
Java Network Launching Protocol. The protocol, defined in an XML file format, that specifies how Java Web Start applica- tions are launched.
LIP
Loop Initialization Process. The initializa- tion process in an arbitrated loop that occurs when the loop is powered up or a new device is added. One function of a LIP is to assign addresses. All data transmis- sion on the loop is suspended during a LIP.
Load balancing
A software feature that improves system performance by balancing device access between multiple HBAs for maximum resource efficiency. This feature is avail- able in Windows 2000/Windows Server 2003/Windows Vista, Novell NetWare, and Red Hat/SUSE Linux. (Windows XP and Windows Server 2008 do not support load balancing.)
Loopback
A diagnostic tool where data is transmitted and received by the HBA.
LUN
Logical Unit Number. The small integer handle that identifies a portion of disk storage. A LUN can consist of a single physical disk or many physical disks. A physical disk can be broken into multiple LUNs.
LUN masking
A software feature that assigns LUNs to specific servers or hides LUNs from specific servers for maximum access and availability control.
Media
Electronic carriers of information. FC supports several different physical media: copper, multimode optical, and
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