Brocade 12000 Datasheet - TeamKCI

SILKWORM 12000 HIGH AVAILABILITYComponentSwitch backplaneBlower backplaneControl processorFailure Rate798,000 hours10,722,000 hours209,000 hours16 port FC blade 191,000 hoursPower supplyBlower FRUWWN cardTable 1. Reliability prediction summary500,000 hours473,000 hours2,154,000 hoursHIGH-RELIABILITY FEATURESThe SilkWorm 12000 includes several integrated features designedto provide the highest levels of reliability in the industry.Hardware and software reliability features combine to generateimpressive overall system reliability.Hardware ReliabilityTo provide high reliability, the SilkWorm 12000 offers thefollowing capabilities:• Internal switch data protection through an error detection andcorrection mechanism.• Power-On Self Test (POST).• Error Detection and Fault Isolation (EDFI), such as CyclicRedundancy Checking (CRC), parity checking, checksum,and illegal address checking.• Dual control processors that enable fast, dynamic,and non-disruptive firmware upgrades. Each control processorcontains two serial ports and one Ethernet port. In addition,offline control processor diagnostics and remote diagnosticssimplify troubleshooting.• I2C monitoring and control.The most common measure of hardware reliability is Mean TimeBetween Failures (MTBF), and the reliability predictions for theSilkWorm 12000 are based on the related Bellcore TR322 PartsCount Method.This particular method is a very conservativeestimate of component failure (which does not necessarilySwitch Model Bellcore Failure DemonstratedRate Prediction Failure Rate*SilkWorm 2400 194,000 hours 1,529,000 hoursSilkWorm 2800 187,000 hours 1,148,000 hours* Based on field data collected through January 2002Table 2. Reliability prediction versus field data (for a switch with one powersupply and no media)indicate the unavailability of the overall system). It defines thesystem failure rate as the sum of its components’ failure rates,resulting in higher calculations for systems with redundantcomponents. However, systems with redundant componentswould actually experience a lower probability of unavailabilityin a real-world environment.Table 1 indicates the predicted reliability results for SilkWorm12000 components, while Table 2 indicates the actual results datacollected from the field.As these statistics clearly indicate, the actual field performance ofthe SilkWorm switch components is demonstrably higher than theperformance predicted by the Bellcore TR322 Parts Count Method.Software ReliabilitySoftware availability is typically defined by the probability of aparticular service being available at the time it is required.However, software reliability is defined by whether the software,in addition to being available, also provides fully functional operationwhen required. Based on field-proven results, the Brocade systemsoftware is highly reliable during switch operation.HIGH RAS CAPABILITIES FOR A STRATEGIC SAN INFRASTRUCTUREWhile some switch vendors stake their claims to high reliabilitybased on hardware capabilities, Brocade has a proven track recordof providing both reliable hardware and software components.Combining a wide array of redundant hardware components andinnovative software, the SilkWorm 12000 provides unprecedentedoverall RAS capabilities in a director-class switch. As a result, ithelps support a strategic SAN infrastructure capable of addressingthe most demanding business requirements. For more informationabout the SilkWorm 12000, visit www.brocade.com/products.Corporate HeadquartersSan Jose, CA USAT: (408) 487-8000info@brocade.comEuropean HeadquartersGeneva, SwitzerlandT: +41 22 799 56 40europe-info@brocade.comAsia Pacific HeadquartersTokyo, JapanT: +81-3-5402-5300apac-info@brocade.comLatin America HeadquartersMiami, FL USAT: (305) 716-4165latinam-sales@brocade.com© 2003 Brocade Communications Systems, Inc. All Rights Reserved. 06/03 GA-RG-260-03Brocade, the Brocade B weave logo, Secure Fabric OS, and SilkWorm are registered trademarks of Brocade Communications Systems, Inc., in the United States and/orin other countries. FICON is a registered trademark of IBM Corporation in the U.S. and other countries.All other brands, products, or service names are or may betrademarks or service marks of, and are used to identify, products or services of their respective owners.Notice:This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning any equipment, equipment feature, orservice offered or to be offered by Brocade. Brocade reserves the right to make changes to this document at any time, without notice, and assumes no responsibility for itsuse.This informational document describes features that may not be currently available. Contact a Brocade sales office for information on feature and product availability.Export of technical data contained in this document may require an export license from the United States government.