Qlogic SANsurfer FC HBA Manager Guide de l'utilisateur télécharger pdf (Page 211)

B – Glossary

FS0054603-00 C B-3

Driver (continued) In Red Hat/SuSE Linux, the driver layers include:

■ SCSI Upper Layer. This is the device management

layer. It handles device-dependent tasks for devices,

such as disks and tapes.

■ SCSI Middle Layer. This is the SCSI traffic handling

layer. It directs requests between the kernel and the

SCSI.

■ SCSI Lower Layer. This is the SCSI host bus adapter

driver. It communications directly to the SCSI HBA.

The structure for Solaris SPARC drivers includes:

■ Nexus Drivers. Nexus drivers provide bus mapping

and translation services to subordinate nexus and

leaf devices. These include drivers for PCI-to-PCI

bridges, PCMCIA adapters, and SCSI HBAs.

■ Leaf Drivers. Leaf drivers provide the traditional

character and block driver interfaces for reading and

writing data to storage and communication devices.

These include drivers for peripheral devices,

including QLA200/QLA2xxx HBAs, disks, tapes,

network HBAs, and frame buffers.

Echo diagnostic test This test transmits a received signal back to the sender

to verify the integrity of the device.

Fabric A fabric consists of cross-connected Fibre Channel

devices and switches.

Fabric switch A fabric switch connects multiple devices from

independent Fibre Channel-arbitrated loops (FC-ALs)

and point-to-point topologies into a fabric.

Fast!UTIL QLogic Fast!UTIL FC HBA BIOS utility

FCode FCode is a type of boot code. It is designed for use on

Sun’s SPARC hardware platforms. See Boot code and

OptionROM.

Flash BIOS A QLA2xxx HBA’s flash PROM contains the code that

allows booting from the HBA at startup.

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Qlogic SANsurfer FC HBA Manager Guide de l'utilisateur Page 211