Cisco MDS 9020 - Fabric Switch Especificaciones descargar pdf (Pagina 59)

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Cisco MDS 9000 Family Fabric Manager Quick Configuration Guide

OL-7765-02

APPENDIX

Configuring Static Domain IDs and Persistent

FC IDs

The domain manager on the principal switch in a VSAN assigns a domain ID to a switch that is joining

the fabric. When a switch boots up or joins a new fabric, it can request a specific domain ID or take any

available domain ID.

After obtaining the domain ID from the principal switch in the VSAN, the local switch assigns Fibre

Channel Identifiers (FC IDs) to each end device as they are logged in to the fabric using a process known

as FLOGI (Fabric Login).

Note HP-UX and AIX are two operating systems that utilize the FC ID in the device path to the

storage. For a switch to always assign the same FC ID to a device, persistent FC IDs and static

domain ID must be configured for the VSAN.

By default, the switch assigns the same FC ID to a device. However, if the switch is rebooted, this

database of pWWN/FC ID mapping is not maintained. Enabling persistent FC IDs makes this database

persistent across reboots.

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Cisco MDS 9020 - Fabric Switch Especificaciones Pagina 59