ATTO Technology VT-Class manual Errors, Zone definition tables The Zone commands

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Errors

Zone definition tables: The Zone commands

manage entries in the Zone definition tables which manage the overall zoning process. Definition tables are indexed by unique keys (zone_name). All definition tables are repositories for their respective data and participate in establishing the configuration by executing the ZoneCommit command.

The integrity of these tables is essential to the data integrity of the Diamond-VT. If the Zone definitions are faulty problems can occur. Although Zone command processing provides a level of command and configuration validation, you must be very careful managing configurations with any zoning system.

Validation of the command line is performed before the command is deemed acceptable to be executed.

These descriptions are generalizations.

Configuration inaccuracies occurring before application or operating system data is written to the drives may have no impact on the Diamond- VT, but results after an operating system or application have written to the drives are unpredictable.

Incorrect Zone entries can include mis- specification of resources to a zone.

Verify each command line is properly formed (number of parameters, proper spelling of keywords).

For commands defining entities, the name being defined must not already be defined.

If you want to undefine an entity, the name being undefined must already be defined. (A warning will be displayed if the name to be undefined doesn’t exist.)

World wide port names are validated according to basic format rules. Content verification of WWPN occurs at runtime.

LUN must be in the range defined by the RAID<n> configuration.

Errors detected in the CLI command line are described in Exhibit 7.3-1.

Errors detected while writing the Active Zone Configuration result in an error message and no change to the zoning configuration. The Active configuration continues to match the persistent configuration.

Errors detected while reading the Active Zone Configuration result in an error message and the zoning configuration remains unchanged.

54 Zones

Page 65
Image 65
ATTO Technology VT-Class manual Errors, Zone definition tables The Zone commands