HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.x administrator guide (569 - Page 168

Admin Domains and LSAN zones, Configuration upload and download in an AD context, Root zone database

Page 168 highlights

Admin Domains introduce two types of zone database nomenclature and behavior: • Root zone database-If you do not use Admin Domains, you will have only one zone database. This legacy zone database is known as the root zone database. If you create Admin Domains, you will have the root zone database, which is owned by AD0, and other zone databases, one for each user-defined Admin Domain. • During the zone update process, only the root zone database is sent to AD-unaware switches. • AD-level zone information is merged with the root zone configuration and enforced. If the administrative domain feature is not active (AD1-AD254 are not configured and no explicit members are added to AD0), AD0 supports both defzone allaccess and noaccess modes. • Zone databases-The Admin Domains each have separate zone databases and zone transaction buffers. You can concurrently edit the separate zone databases. The AD zone database also has the following characteristics: • Each Admin Domain (AD1 through AD254) has its own zone definitions. These zone definitions include defined and effective zonesets and all related zone objects including zones, zone aliases, and zone members. For example, you can define a zone name of test_z1 in more than one Admin Domain. • Each zone database has its own namespace. • There is no zone database linked to the physical fabric (AD255) and no support for zone database updates. In the physical fabric context (AD255), you can only view the complete hierarchical zone database, which is made up of the zone databases in AD0 through A254. • With AD support, zoning updates are supported selectively at each AD level. For example, a zone change in AD1 results in an update request only for the AD1 zone database. Admin Domains and LSAN zones LSANs under each Admin Domain are collated into a single name space and sent out to FCR phantom domains using the following format: _AD For example, a zone with name lsan_for_linux_farm in AD5 is internally converted to lsan_for_linux_farm_AD005. LSAN zone names in AD0 are never converted for backward compatibility reasons. The auto-converted LSAN zone names might collide with LSAN zone names in AD0 (for example, in the above example, if AD0 contains lsan_for_linux_farm_AD005, this would cause a name collision). Fabric OS does not detect or report such name clash. LSAN zone names greater than 57 characters are not converted or sent to the FCR phantom domain. Configuration upload and download in an AD context The behavior of configUpload and configDownload varies depending on the AD context and whether the switch is a member of the current Admin Domain. In the AD context, these commands include only the zone configuration of the current Admin Domain. If the switch is a member of the Admin Domain, all switch configuration parameters are saved and the zone database for that Admin Domain is also saved. Table 49 lists the sections in the configuration file and the Admin Domain contexts in which you can upload and download these sections. The configDefault command does not clear zone or Admin Domain database information. This command is allowed only if the switch is a member of the current Admin Domain. 170 Managing administrative domains

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170
Managing administrative domains
Admin Domains introduce two types of zone database nomenclature and behavior:
Root zone database
—If you do not use Admin Domains, you will have only one zone database.
This legacy zone database is known as the
root zone database
. If you create Admin Domains, you will
have the root zone database, which is owned by AD0, and other zone databases, one for each
user-defined Admin Domain.
During the zone update process, only the root zone database is sent to AD-unaware switches.
AD-level zone information is merged with the root zone configuration and enforced.
If the administrative domain feature is not active (AD1–AD254 are not configured and no explicit members
are added to AD0), AD0 supports both
defzone allaccess
and
noaccess
modes.
Zone databases
—The Admin Domains each have separate zone databases and zone transaction
buffers. You can concurrently edit the separate zone databases. The AD zone database also has the
following characteristics:
Each Admin Domain (AD1 through AD254) has its own zone definitions. These zone definitions
include defined and effective zonesets and all related zone objects including zones, zone aliases,
and zone members. For example, you can define a zone name of test_z1 in more than one Admin
Domain.
Each zone database has its own namespace.
There is no zone database linked to the physical fabric (AD255) and no support for zone database
updates. In the physical fabric context (AD255), you can only view the complete hierarchical zone
database, which is made up of the zone databases in AD0 through A254.
With AD support, zoning updates are supported selectively at each AD level. For example, a zone
change in AD1 results in an update request only for the AD1 zone database.
Admin Domains and LSAN zones
LSANs under each Admin Domain are collated into a single name space and sent out to FCR phantom
domains using the following format:
<
original_LSAN_name
>_AD<
AD_num
>
For example, a zone with name
lsan_for_linux_farm
in AD5 is internally converted to
lsan_for_linux_farm_AD005
.
LSAN zone names in AD0 are never converted for backward compatibility reasons.
The auto-converted LSAN zone names might collide with LSAN zone names in AD0 (for example, in the
above example, if AD0 contains
lsan_for_linux_farm_AD005
, this would cause a name collision). Fabric
OS does not detect or report such name clash.
LSAN zone names greater than 57 characters are not converted or sent to the FCR phantom domain.
Configuration upload and download in an AD context
The behavior of
configUpload
and
configDownload
varies depending on the AD context and
whether the switch is a member of the current Admin Domain. In the AD context, these commands include
only the zone configuration of the current Admin Domain. If the switch is a member of the Admin Domain,
all switch configuration parameters are saved and the zone database for that Admin Domain is also saved.
Table 49
lists the sections in the configuration file and the Admin Domain contexts in which you can
upload and download these sections.
The
configDefault
command does not clear zone or Admin Domain database information. This
command is allowed only if the switch is a member of the current Admin Domain.