EMC Qlogic QLA23xx Guía de instalación descargar pdf (Pagina 118)

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EMC Fibre Channel and iSCSI with QLogic Host Bus Adapters in the Windows Environment

Troubleshooting

Known issues

Be aware of these issues:

◆ QLogic BIOS 1.26 and later for QLA23xx and BIOS 1.79 and later

for QLA22xx HBAs allow for multiple Boot Port Name entries to

be configured for high-availability booting after path failures.

Previous BIOS versions do not support this functionality, will

boot only from a single storage array port, and cannot provide

boot capability with path failures.

◆ NTOSKNL BSOD (blue screen) during a link-down event can

cause file system corruption to mounted file systems.

◆ HBA boot BIOS does not support high availability while the OS is

booting. It can handle path failures at boot initialization time, and

after the OS has loaded. Path failures while the OS is loading will

require the host to reboot before successfully completing the boot

process.

◆ Degraded response time as the I/O load approaches storage

system capacity can make the OS appear hung or result in a

NTOSKNL BSOD.

◆ Boot files, Windows system files, and swap space should all be on

the boot LUN. With certain server models, you can use an internal

disk for the page file for stability; however, this might not

increase fault tolerance and might reduce system recovery

options.

◆ Swap space must be available on %SYSTEMROOT% or core dump

will fail.

◆ For Windows 2003 on 64-bit IA64-2 servers, the system no longer

uses an x86-compatible BIOS; therefore, enabling boot-from-array

support with the HBA requires a separate firmware EFI

download.

◆ For servers booting from the array, a Symmetrix out-of-family

microcode load, or a CLARiiON Flare NDU between versions

will cause the server to require a reboot. This occurs because

Windows requires a reboot when characteristics of the boot LUN

change. During the NDU process on EMC storage arrays, the

serial number and inquiry VPD data will change to reflect the

new code version. When Windows performs a rescan and

recognizes this change, it assumes a change has occurred on the

boot LUN and will require a reboot.

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EMC Qlogic QLA23xx Guía de instalación Pagina 118