Dell QLA2200 Installationsanleitung PDF herunterladen (Seite 10)

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EMC Fibre Channel with QLogic HBAs in the Linux x86 Environment

Introduction

EMC/Linux Fibre Channel Environment

Host Connectivity

This section provides an overview of supported hosts and host bus

adapters. Review the EMC Support Matrix or contact your EMC

representative for the latest information on qualified HBAs and

drivers.

EMC does not currently support mixing different types of Fibre Channel

HBA (including different types from the same vendor) in a server.

The Fibre Channel HBA driver functions as a device driver layer

below the standard Linux SCSI adapter driver. The Fibre Channel

interface is therefore transparent to the Linux disk administration

system.

Boot Device Support

Linux hosts have been qualified for booting from EMC storage array

devices interfaced through Fibre Channel as described in Chapter 3.

Addressing

◆ Linux uses SCSI-2 device access protocol in addressing its Fibre

Channel devices. SCSI-3 Array Controller addressing modes are

not supported. The peripheral device access mode is supported in

Symmetrix

to address up to 128 logical devices, in an address

range of 0 to 255.

◆ (EMC Symmetrix only) If you attempt to access existing devices

previously interfaced via SCSI, your raw device addressing may

be changed after upgrading to Fibre Channel directors.

Zoning

When using Linux hosts in a fabric environment, the zoning must be

set up as single-initiator zoning. A single initiator zone is composed

of one HBA and one or more EMC storage array ports. Storage

arrays ports may be shared amongst HBAs; however, each HBA must

be in its own zone.

Multi-initiator zones are not supported in a Linux fabric

environment.

QLogic_Linux.book Page 2 Monday, November 1, 2004 2:15 PM

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Dell QLA2200 Installationsanleitung Seite 10