The Brocade SilkWorm 24000 Director provides
a highly reliable and intelligent solution for
enterprise-class Storage Area Networks (SANs)
in mission-critical environments.
SILKWORM 24000 DIRECTOR
Highlights
A High-Port-Density, Multiprotocol
Director for Enterprise SANs
• Delivers up to 128 ports in a single
domain and a 14U enclosure with up
to 384 ports in a single rack, facilitat-
ing more easily managed SAN fab-
rics with thousands of ports
With state-of-the-art performance
and enhanced scalability for both
open system and IBM zSeries server
enterprise SAN environments, the
supporting thousands of hosts and
storage devices (see Figure 1).Whether
used as a core building block for an
enterprise fabric or as a standalone
director, the SilkWorm 24000 is a
reliable, high-availability solution.These
capabilities make it ideal for enterprise
management and high-volume trans-
action processing applications such as
ERP and data warehousing, as well
as data backup, remote mirroring,
and high-availability clustering.
• Meets ultra-high-availability require-
ments with redundant, hot-pluggable
components, no single points of
failure, non-disruptive software
®
®
Brocade SilkWorm 24000 Director
provides unique capabilities to meet
demanding mission-critical require-
ments. It scales non-disruptively
from 32 to as many as 128 concur-
rently active 2 Gbit/sec full-duplex
ports in a single domain or two
domains of up to 64 ports each. In
addition, it offers improved perform-
ance and the potential to upgrade to
higher-speed connectivity in the
future.The SilkWorm 24000 also
leads the industry in power and
cooling efficiency, helping to reduce
total cost of ownership.
upgrades, and hot code activation
®
• Provides FICON support for IBM
zSeries server environments, includ-
ing intermix mode on a port-by-port
basis, cascaded FICON fabrics,
1 and 2 Gbit/sec FICON speeds,
and CUP support
• Increases performance through reduced
latency and Brocade Inter-Switch Link
(ISL) Trunking
• Leverages intelligent Brocade SAN
management and security tools to
increase operational efficiency and
maximize SAN investments
The SilkWorm 24000 is designed to
integrate with heterogeneous envi-
ronments that include IBM zSeries
server and open platforms with
multiple operating systems such as
Microsoft Windows, Linux, Solaris,
HP-UX,AIX, and i5/OS. As a result,
Brocade-based SANs can help serve
as the foundation for implementing
utility computing and Information
Lifecycle Management (ILM).
• Protects investments by enabling
upgrade paths to future technologies,
increased port speeds, IP connectivity,
and more
With its intelligent fourth-generation
ASIC, the SilkWorm 24000 provides
a reliable foundation for core-to-edge
SANs, enabling fabrics capable of
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In addition, exchange-based Dynamic
Path Selection (DPS) optimizes fabric-
wide performance and load balancing
by automatically routing data to the
most efficient available path in the
fabric. DPS augments ISL Trunking to
provide more effective load balancing
in certain configurations, such as routing
data between multiple trunk groups
for higher availability.
Organizations can also use Brocade
Advanced Performance Monitoring to
improve SAN performance tuning,
resource optimization, and administrator
productivity. Moreover, the Brocade
Fabric Access API integrates with
popular third-party storage management
applications, enabling organizations to
continue using their storage manage-
ment tools of choice.
and control processors, and can intermix
SilkWorm 12000 and SilkWorm 24000
blades in supported configurations.
In addition, the SilkWorm 24000 is
designed to support non-disruptive
addition of 4 Gbit/sec Fibre Channel
blades for performance and distance
benefits. These capabilities help
“future-proof” the SilkWorm 24000
for years to come. (For specific
SilkWorm 24000 upgrade options,
contact an authorized Brocade Partner
or visit www.brocade.com.)
To support disaster recovery and busi-
ness continuance operations, the
FICON SUPPORT FOR IBM ZSERIES
SERVER ENVIRONMENTS
SilkWorm 24000 with new 4 Gbit/sec
blades enables unprecedented distances
between servers and storage devices.
Support for distances up to 500 kilo-
meters at 1 Gbit/sec and 100 kilome-
ters at 4 Gbit/sec at full bandwidth
facilitates high-performance, long-
distance SAN solutions for data
The SilkWorm 24000 supports the
FICON protocol for IBM zSeries server
environments, enabling organizations
to run both open systems Fibre Channel
and FICON traffic in intermix mode
on a port-by-port basis within a single
director.The Brocade FICON imple-
mentation also supports cascaded
FICON fabrics and both 1 and 2
Gbit/sec FICON speeds, as well as the
CUP in-band management protocol
for use with SA/390, DCM, or RMF
monitoring platforms.
MAXIMIZING SAN INVESTMENTS
Brocade and its partners offer complete
SAN solutions to meet a wide range of
technology and business requirements.
These solutions include education and
training, support, service, and profes-
sional services to help optimize SAN
investments. For more information,
contact an authorized Brocade sales
partner or visit www.brocade.com.
replication and business continuance.
INTELLIGENT SAN MANAGEMENT
AND MONITORING
The SilkWorm 24000 leverages Fabric
OS, the embedded operating system,
to centralize SAN management for
greater efficiency.This approach enables
heterogeneous device connectivity, auto-
matic data routing, self-healing capabili-
ties, and scalable connectivity options.
To simplify daily SAN management,
organizations can utilize a command line
interface for automated scripting or the
GUI-based Brocade Web Tools utility.
UPGRADE PATHS FOR
INVESTMENT PROTECTION
To help protect existing technology
investments, the SilkWorm 24000 pro-
vides backward and forward compati-
bility with SilkWorm entry, midrange,
and director offerings. Organizations
can upgrade existing SilkWorm 12000
directors by replacing the port cards
SILKWORM 24000 DIRECTOR SPECIFICATIONS
Systems Architecture
Fibre Channel ports
128 ports, universal (E, F, and FL); one domain per
chassis at up to 128 ports or two domains per chassis
at up to 64 ports each; up to eight 16-port Fibre
Channel modules; up to 384 ports per 42U rack
Performance
2 Gbit/sec blades: 1.063 Gbit/sec line speed (full
duplex); 2.125 Gbit/sec line speed (full duplex);
auto-sensing of 1 and 2 Gbit/sec port speeds;
optionally programmable to fixed port speed;
speed-matching between 1 and 2 Gbit/sec ports
4 Gbit/sec blades: 1.063 Gbit/sec line speed (full
duplex); 2.125 Gbit/sec line speed (full duplex);
4.25 Gbit/sec line speed (full duplex); auto-sensing
of 1, 2, and 4 Gbit/sec port speeds; optionally
programmable to fixed port speed; speed-matching
between 1, 2, and 4 Gbit/sec ports
Control processor
Scalability
Redundant (active/standby) control processor modules
Full fabric architecture 239 switches maximum
Certified maximum
Combination of 56 switches, 19 hops; larger fabrics
certified as required; consult Brocade or OEM SAN
design documents for configuration details
ISL Trunking
2 Gbit/sec blades: Up to four 2.125 Gbit/sec ports
per ISL trunk; up to 8.5 Gbit/sec per ISL trunk
4 Gbit/sec blades: Up to eight 4.25 Gbit/sec ports
per ISL trunk; up to 32 Gbit/sec per ISL trunk
Interoperability
Any SilkWorm 2000 family switch, SilkWorm 3000
family switch, SilkWorm 4000 family switch, SilkWorm
200E, SilkWorm 12000, and SilkWorm 48000
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SILKWORM 24000 DIRECTOR
SILKWORM 24000 DIRECTOR SPECIFICATIONS (CONTINUED)
Systems Architecture (continued)
Mechanical Specifications
Aggregate bandwidth
512 Gbit/sec end to end
Enclosure
Rear panel-to-door airflow
Switch latency
<2.1 µsec any port to any port at 2 Gbit/sec,
cut-through routing
Width
43.74 cm (17.22 in)
Height
Depth
61.24 cm (24.11 in) for 14U
Maximum frame size
Frame buffers
2112-byte payload
70.90 cm (27.90 in) without door
74.20 cm (29.20 in) with door
2 Gbit/sec blades: 108 per 4-port group, dynamically
allocated
4 Gbit/sec blades: 1024 per blade, dynamically
allocated up to 255 per port
System weight
88 to 96 kg (193 to 212 lb)
Environment
Classes of service
Port types
Class 2, Class 3, Class F (inter-switch frames)
Temperature
Operating: 0° C to 40° C (50° F to 104° F)
Non-operating: -25° C to 70° C (-13° F to 158° F)
FL_Port, F_Port, and E_Port; self-discovery based
on switch type (U_Port); optional port type control
Humidity
Altitude
Shock
Operating:5% to 85% non-condensing at 40°C (104° F)
Up to 3000 meters (9800 feet)
Data traffic types
Media types
Fabric switches supporting unicast, multicast
(255 groups), and broadcast
Operating: 20G, 6 ms duration, half-sine
Small Form-factor Pluggable (SFP) media; short-wave
up to 500 meters (1640 feet); long-wave up to 10
kilometers (6.2 miles); extended long-wave up to
100 km (62.1 mi); distance depends on fiber optic
cable and port speed
Vibration
Operating: 0.5G p-p, 5–500 Hz
Non-operating: 2.0G, 5–500 Hz
Heat dissipation
740 W, 2525 BTU/hr fully loaded
Fabric services
Simple Name Server; Registered State Change
Notification (RSCN); Alias Server (multicast);
Brocade Advanced Zoning, FICON Control Unit Port
(CUP), Web Tools, Fabric Watch, Extended Fabrics,
Remote Switch, ISL Trunking, and Advanced
Performance Monitoring
Power
Supported power range
Nominal: 200 to 240 VAC nominal, 5.0 A, single phase
Operating: 180 to 264 VAC auto-sensing
Maximum 2300 Volt-Amps
Maximum 12 Amps
High Availability
Chassis power
In-rush current
Frequency
40 Amps maximum, peak
47 to 63 Hz
Two AC-DC power supply modules, 2N redundancy
Three blower assembly modules (two operational required)
Cooling
Regulatory Compliance
Country/Region
Management
Safety
EMI/EMC
Management software
supported
Telnet; RADIUS; SNMP (FE MIB, FC Management MIB);
Web Tools; Fabric Watch; third-party applications
utilizing Brocade Fabric Access API
Canada
United States
Japan
CSA 60950
UL 60950
IEC60950
EN60950
ICES 003 Class A
FCC Part 15 Class A
VCCI Class A ITE
EN55022 Level A
EN55024
European Community
Management access
Diagnostics
10/100 Ethernet (RJ-45), in-band over Fibre Channel
(requires fabric); two serial ports (DB-9) per control
processor module
TUV, NEMKO
Australia/New Zealand
International
AS/NZS 3548 Class A
CISPR 22 Class A
IEC 60950
POST and embedded online/offline diagnostics
For information about supported SAN standards, visit
Corporate Headquarters
San Jose, CA USA
European and Latin American
Headquarters
Asia Pacific Headquarters
Singapore
T: (408) 333-8000
Geneva, Switzerland
T: +41 22 799 56 40
T: +65-6538-4700
© 2005 Brocade Communications Systems, Inc.All Rights Reserved. 5/05 GA-DS-659-02
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and/or in 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
be trademarks 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, or
service 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 its
use.This informational document describes features that may not be currently available. Contact a Brocade sales office for information on feature and product availability.
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