The Implementing or Migrating to an IBM Gen 5 b-type SAN, SG24-8331 IBM Redbooks publication describes the Gen 5 b-type SAN directors and switches, including licensing, implementation, migration, and troubleshooting.
The IBM Gen 5 b-type SAN directors and switches provide native 10 Gbps Fibre Channel, in-flight encryption and compression, and increased buffers. This new Gen 5 family allows a simple server deployment with dynamic fabric provisioning, which enables organizations to eliminate fabric reconfiguration when adding or replacing servers through the virtualization of the host worldwide names (WWNs).
Fabric OS (FOS) V7 with the b-type Gen 5 products offers a set of advanced features, including Brocade Fabric Vision technology.
Brocade Fabric Vision technology
Brocade Fabric Vision technology is an advanced hardware and software solution that combines capabilities from the Brocade Gen 5 Fibre Channel ASIC.
Fabric Vision is partially compatible with Gen 4 switches and fully supported on Gen 5 switches. It is a set of new software features that works with the new Gen 5 hardware capabilities to provide advanced diagnostic tests, improved monitoring, and management. It is designed to maximize availability, resiliency, and performance, as well as simplify SAN deployment and management.
Fabric Vision provides the following features:
- ClearLink Diagnostic Ports: Ensures optical and signal integrity for Gen 5 Fibre Channel optics and cables.
- Fabric Performance Impact (FPI) Monitoring: Uses predefined thresholds and alerts with MAPS to automatically detect and alert latency, identify slow drain devices, and pinpoint exactly which devices are causing and are affected by a bottlenecked port. FPI monitoring also provides the ability to automatically mitigate the effects of slow drain devices or even resolve the slow drain behavior at the source.
FPI functionality replaces the Bottleneck and Credit recovery functionality in Fabric OS v7.3.0 and later.
- Latency Bottleneck Detection: Enables proactive monitoring, alerting, and visualization of high latency devices and high latency ISLs that are affecting application performance. It simplifies SAN administration by narrowing troubleshooting efforts.
- Forward Error Correction (FEC): Automatically detects and recovers from bit errors, enhancing transmission reliability and performance.
- Buffer Credit Recovery at the VC level: Automatically detects and recovers buffer credit loss at the Virtual Channel level, providing protection against performance degradation and enhancing application availability.
- Health and Performance Dashboards: Provide integration with IBM Network Advisor, providing all the critical information in one window.
- Monitoring and Alerting Policy Suite (MAPS): Policy-based monitoring tool that simplifies fabric-wide threshold configuration and monitoring.
- Flow Vision: A comprehensive tool that enables administrators to identify, monitor, and analyze specific application data flows without using taps.
For more information and links to more resources, read Implementing or Migrating to an IBM Gen 5 b-type SAN, SG24-8331.