FW V06.XX/HAFM SW V08.02.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DD-TE, July 2004)
Table Of Contents
- SAN HA Planning Guide
- Contents
- About this Guide
- Introduction to HP Fibre Channel Products
- Product Management
- Planning Considerations for Fibre Channel Topologies
- Fibre Channel Topologies
- Planning for Point-to-Point Connectivity
- Characteristics of Arbitrated Loop Operation
- Planning for Private Arbitrated Loop Connectivity
- Planning for Fabric-Attached Loop Connectivity
- Planning for Multi-Switch Fabric Support
- Fabric Topologies
- Planning a Fibre Channel Fabric Topology
- Fabric Topology Design Considerations
- FICON Cascading
- Physical Planning Considerations
- Port Connectivity and Fiber-Optic Cabling
- HAFM Appliance, LAN, and Remote Access Support
- Inband Management Access (Optional)
- Security Provisions
- Optional Features
- Configuration Planning Tasks
- Task 1: Prepare a Site Plan
- Task 2: Plan Fibre Channel Cable Routing
- Task 3: Consider Interoperability with Fabric Elements and End Devices
- Task 4: Plan Console Management Support
- Task 5: Plan Ethernet Access
- Task 6: Plan Network Addresses
- Task 7: Plan SNMP Support (Optional)
- Task 8: Plan E-Mail Notification (Optional)
- Task 9: Establish Product and HAFM Appliance Security Measures
- Task 10: Plan Phone Connections
- Task 11: Diagram the Planned Configuration
- Task 12: Assign Port Names and Nicknames
- Task 13: Complete the Planning Worksheet
- Task 14: Plan AC Power
- Task 15: Plan a Multi-Switch Fabric (Optional)
- Task 16: Plan Zone Sets for Multiple Products (Optional)
- Index
Physical Planning Considerations
167SAN High Availability Planning Guide
■ Domain RSCNs — Domain RSCNs provide connectivity information to all
HBAs and storage devices attached to a fabric. RSCNs are transmitted to all
registered device N_Ports attached to a fabric if either a fabric-wide event or
zoning configuration change occurs.
■ Insistent domain ID — When this parameter is enabled, the domain ID
configured as the preferred domain ID for a director or switch becomes the
active domain ID when the fabric initializes. A static and unique active
domain identification is required by the fabric binding feature because the
feature's fabric membership list identifies fabric elements by WWN and
domain ID. If a duplicate preferred domain ID is used, then insisted upon, a
warning occurs and the affected director or switch cannot be added to the
membership list.
SANtegrity Binding Planning Considerations
Fabric and switch binding enhance data security by controlling and monitoring
director, fabric switch, and device connectivity. The name server zoning feature
also provides data security by partitioning devices into restricted-access zones.
Use of the SANtegrity Binding and zoning features in conjunction with each other
must be carefully planned and coordinated. Refer to “Zoning” on page 154 for
additional information about zoning.
It is recommended you obtain planning assistance from the HP professional
services organization before implementing the SANtegrity Binding feature with
director or switch zoning, especially for multiple fabrics.
Open Trunking
Open Trunking is a feature that optimizes ISL bandwidth use in a fabric
environment. This feature monitors Fibre Channel data rates (congestion and
BB_Credit starvation) through multiple ISLs, dynamically applies a Dijkstra
FSPF networking algorithm to calculate the optimum path between fabric
elements, and load balances Fibre Channel traffic (from congested links to
uncongested links) accordingly. Open Trunking is shown in Figure 61.