Dell Brocade G620 Brocade 8.0.1 Fabric OS Administratiors Guide - Page 340
Viewing zone database transactions, Peer Zoning - initial setup
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Administering Advanced Zoning to one or more traffic isolation zones, the update may result in localized disruption to traffic on ports associated with the traffic isolation zone changes Multiple open transactions are pending in this fabric. Only one transaction can be saved. Please abort all unwanted transactions using the cfgtransabort command. Use the cfgtransshow --opentrans command to display a list of domains with open transactions Do you want to enable 'cfg' configuration (yes, y, no, n): [no ] u30:FID128:admin> cfgsave You are about to save the Defined zoning configuration. This action will only save the changes on Defined configuration. Multiple open transactions are pending in this fabric. Only one transaction can be saved. Please abort all unwanted transactions using the cfgtransabort command. Use the cfgtransshow --opentrans command to display a list of domains with open transactions Do you want to save the Defined zoning configuration only? (yes, y, no, n): [no] n Viewing zone database transactions Enter cfgtransshow to list the details of the current database transaction token. Enter cfgTransShow--opentrans to display the local open transaction token details and the list of domains with open transactions. Refer to the Fabric OS Command Reference for more details on this command. The following example shows the output of the cfgtransshow command. switch:admin> cfgtransshow Current transaction token is 0x571010459 It is abortable The following example shows the output with --opentrans option. switch:admin> cfgtransshow --opentrans Current transaction token is 0x3109 It is abortable Transactions Detect: Capable Current Open Transactions Domain List 1 2 3 4 Peer Zoning Peer Zoning allows a "principal" device to communicate with the rest of the devices in the zone. The principal device manages a Peer Zone. Other "non-principal" devices in the zone can communicate with the principal device only; they cannot communicate with each other. Prior to the introduction of Peer Zoning, Single-Initiator Zoning was considered a more efficient zoning method in terms of hardware resources and RSCN volume. However, the added storage requirements of defining a unique zone for each host and target rapidly exceeds zone database size limits. As the number of zones increase, it is difficult to configure and maintain the zones. One-to-Many Zoning defines a zone having one target and other members as initiators. This approach is easy to manage and uses less storage, but zoning all the initiators together in this manner results in less effective use of hardware resources and greater RSCN traffic. In a Peer Zone setup, principal to non-principal device communication is allowed, but non-principal to non-principal device communication and principal to principal device communication are not allowed. This approach establishes zoning connections that provide the efficiency of Single-Initiator Zoning with the simplicity and lower memory characteristics of One-to-Many Zoning. Typically, 340 Brocade Fabric OS Administration Guide, 8.0.1 53-1004111-02
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