HP (Hewlett-Packard) A7540-96010 ユーザーズマニュアル
Planning
22
Devices
When planning a fabric, consider the number of public devices and the anticipated demand.
This determines the number of ports that are needed and in turn the number of switches.
Consider how many and what types of switches are needed.
This determines the number of ports that are needed and in turn the number of switches.
Consider how many and what types of switches are needed.
Consider the distribution of targets and initiators. An F_Port supports a single public device.
An FL_Port can support up to 126 public devices in an arbitrated loop.
An FL_Port can support up to 126 public devices in an arbitrated loop.
Device access
Consider device access needs within the fabric. Access is controlled by the use of zones and
zone sets.
zone sets.
Some zoning strategies include:
■
Grouping devices by operating system.
■
Separating devices that have no need to communicate with other devices in the fabric or
have classified data.
have classified data.
■
Separating devices into department, administrative, or other functional group.
■
Reserving a path and its bandwidth from one port to another.
A zone is a named group of devices that can communicate with each other. Membership in a
zone can be defined by domain ID and switch port number, port Fibre Channel address, or by
device worldwide name (WWN). Devices can communicate only with devices within the same
zone. A zone can be a member of more than one zone set. Several zone sets can be defined for
a fabric, but only one zone set can be active at one time. The active zone set determines the
current fabric zoning.
zone can be defined by domain ID and switch port number, port Fibre Channel address, or by
device worldwide name (WWN). Devices can communicate only with devices within the same
zone. A zone can be a member of more than one zone set. Several zone sets can be defined for
a fabric, but only one zone set can be active at one time. The active zone set determines the
current fabric zoning.
A zoning database is maintained on each switch consisting of all inactive zone sets, the active
zone set, all zones, aliases, and their membership. Refer to the HP StorageWorks 2/8q Fibre
Channel Switch Management User Guide for more information about zoning.
zone set, all zones, aliases, and their membership. Refer to the HP StorageWorks 2/8q Fibre
Channel Switch Management User Guide for more information about zoning.
The two types of zones are:
■
■
Table 2: Zoning database limits
Zoning item
Description
Limit
MaxZoneSets
Maximum number of zone sets.
256
MaxZones
Maximum number of zones.
256
MaxAliases
Maximum number of aliases.
256
MaxTotalMembers
Maximum number of zone and alias members
that can be stored in the switch’s zoning
database.
that can be stored in the switch’s zoning
database.
2000