Cisco Cisco MDS 9000 SAN-OS Software Release 3.1 数据汇总

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Cisco MDS 9000 Family FICON Solution Overview
At-A-Glance
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No-cost PortChannels are supported to provide 
additional resiliency and performance by combining 
ports into a single logical port. The ability to create 
PortChannels from ports on different line cards 
provides outstanding availability and resiliency.  
Because PortChannels can contain links of very 
different lengths, each logical link between sites can 
include physical links from all available MAN paths 
between sites, ensuring that logical link failures do 
not occur if one physical path is lost.
Security
Cisco TrustSec Fibre Channel Link Encryption can 
encrypt data in flight between any two 8-Gbps-capable 
Cisco MDS 9500 Family line cards. This feature provides 
security across a MAN or a campus dark fiber link 
between data centers, or within a data center for IBM 
System z users who choose a proactive approach to 
security requirements.
FICON VSANs provide hardware-based traffic isola-
tion, separating traffic of various FICON workloads 
and enabling safe sharing (if desired) of infrastructure 
between mainframe and open systems storage when 
intermix mode is deployed. Access controls protect data 
from unauthorized hosts, while the fabric binding feature 
protects the fabric from the addition of unauthorized 
directors. Role-based management helps ensure that 
the security of the infrastructure is not compromised by 
uncontrolled management access.
Workload and Systems Management
IBM System z customers are accustomed to enabling 
hardware features and software licenses to provide the 
right amount of capacity to process their workloads. The 
Cisco MDS 9000 Family extends this concept to the 
FICON environment. A variety of blades can be added 
non-disruptively to directors and semi-modular switches 
such as the Cisco MDS 9222i Multiservice Modular 
Switch to match capacity to demand. 
The prerequisite for matching capacity to demand is per-
formance measurement, and the Cisco MDS 9000 Family 
provides a comprehensive set of capabilities in this area.
Support for FICON CUP enables in-band management 
from the System z and the accumulation of performance 
and error statistics in the SA/390 Resource Measurement 
Facility (RMF). Direct administration is provided through 
a traditional command-line interface (CLI) and the Java 
based Cisco Fabric Manager GUI. Cisco Fabric Manager 
can be extended with the optional Cisco Fabric Manager 
Server license to enable concurrent management of 
multiple independent fabrics and extensive accumulation, 
monitoring and analysis of performance statistics.
Performance
The business-critical nature of many IBM System z 
workloads demands the highest performance from its I/O 
infrastructure as well. The Cisco MDS 9000 Family delivers 
up to 2.2 Tbps of I/O bandwidth through its fully redundant 
crossbars. A choice of line cards lets you mix and match 
high fan-out for older 1-, 2-, and 4-Gbps control units 
and channels with dedicated performance for today’s 
8-Gbps connections. Further, 10-Gbps ISLs are available 
to increase bandwidth between cascaded directors. 
PortChannels can pool ports across line cards to distrib-
ute workloads for smooth performance scaling.
Raw performance is not enough, however. It must also be 
predictable and manageable. The Cisco MDS 9000 Family 
crossbar architecture helps ensure fairness; all ports 
get their fair share of bandwidth when workload peaks 
occur. Port bandwidth reservation gives administrators 
even more granular control, helping ensure that specific 
workloads get defined amounts of I/O bandwidth within a 
specific group of FICON ports.
From the Past to the Future
Mainframes have been evolving for more than 40 years, 
and because of their importance to IT infrastructures, 
individual installations often have equipment that dates 
back many generations of technology. Older IBM ESCON 
control units can be connected to a Cisco FICON 
infrastructure with the Optica PRIZM FICON-to-ESCON 
converter. This capability makes Cisco a desirable target 
for infrastructure migration, especially from other vendors’ 
product lines that have been declared at end of life by 
reason of acquisition. The rich FICON feature set of the 
Cisco MDS 9500 Series Multilayer Directors enables a 
methodology for migrating from other directors to Cisco 
without requiring changes to the IBM System z I/O con-
figuration.
The Cisco MDS 9000 Family is the only family of directors 
in the SAN industry that consistently provides the capabil-
ity to upgrade installed chassis from one generation of 
FICON technology to the next. From 1 Gbps to 2 to 4 to 8 
Gbps, component-level replacement of line cards and, in 
some cases, supervisor cards, has been all that is needed 
to move a Cisco director to the next level of performance. 
This level of investment protection is not available 
anywhere else in the SAN industry.
Conclusion
The Cisco MDS 9000 family incorporates many of the 
same design values as the IBM System z itself: scalability, 
secure logical partitioning of physical and software 
resources, infrastructure consolidation, and extremely 
high availability to enable business resiliency, security, 
consistent performance, and investment protection. 
These characteristics make the Cisco MDS 9000  
Family the clear choice for extending, enhancing and 
accelerating IBM System z deployments.
For more information about the deploying the Cisco MDS 
9000 Family in your mainframe environment, contact your 
local account representative or contact Cisco at  
http://www.cisco.com/go/ficon
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