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IBM System Storage SAN24B-4 Express

Designed for high-performance, scalability and simple-to-use in small to medium-size SAN environments


The IBM System Storage SAN24B-4 Express fabric switch is designed specifically to address the needs of small to medium-sized SAN environments. It can be used to create a wide range of high-performance SAN solutions, from simple, single-switch configurations to larger, multi-switch configurations which support fabric connectivity and advanced business continuity capabilities. Infrastructure simplification solutions for IBM System x, BladeCenter and IBM Power Systems servers include storage consolidation and high-availability (HA) server clustering with IBM System Storage disk storage arrays. Business continuity solutions include data protection with IBM System Storage tape libraries and devices and IBM Tivoli Storage Manager (TSM) data protection software.

A single SAN24B-4 Express switch can serve as the cornerstone of a SAN for those that want to obtain the benefits of storage consolidation and are just beginning to implement FC storage systems. Such an entry-level configuration can consist of one or two FC links to a disk storage array or to a Linear Tape-Open (LTO) tape drive. An entry-level eight-port storage consolidation solution can support up to seven servers with a single path to either disk or tape. The Ports on Demand feature is designed to enable a base switch to grow to 16 and 24 ports to support more servers and more storage devices without taking the switch offline. A HA solution can be created with redundant switches. This capability is ideal for server clustering environments. Such a configuration can support from 6 to 22 servers, each with dual FC adapters cross-connected to redundant SAN24B-4 Express switches, which are cross connected to a dual-controller storage system. While the focus of the SAN24B-4 Express is as the foundation of small to medium-sized SANs, it can be configured to participate as a full member in an extended fabric configuration with other members of the IBM System Storage and TotalStorage SAN b-type and m-type families. This capability helps provide investment protection as SAN requirements evolve and grow over time.

Common features

Hardware summary

Feature Benefits
Efficient 1U design
Auto-sensing 8, 4, 2 and 1 Gbps ports Designed to:
Hot swappable SFPs
ISL Trunking
Advanced Zoning
N_Port ID Virtualisation
EZSwitchSetup and Web Tools
Hot firmware activation Designed to:
N+1 cooling
Upgradeable architecture for scalable SAN fabrics
Backward compatibility with IBM SAN b-type and m-type fabrics
Server Application Optimisation (SAO) licence

Product characteristics
Produce Number 249824E
Base fabric switch IBM System Storage SAN24B-4 Express switch with 24 ports, 8 ports activated (0 to 7) and FOS 6.1.0 or later, hardcopy Installation Guide, CD-ROM (with manuals), service and wrap tools, small form factor pluggable (SFP) extraction tool, 110 volt power cord for rack installation, rail kit, Advanced Zoning, EGM (standard on 2498-B24, optional on 249824E), EZSwitchSetup wizard, Full Fabric (standard on 2498-B24, optional on 249824E), Web Tools
FC interface E_Port, F_Port, FL_Port and M_Port
Optical transceivers Choice of 8 Gbps (supports 8, 4 and 2 Gbps link speeds) and 4 Gbps (supports 4, 2 and 1 Gbps link speeds) short wave and long wave SFP
Fans and power supplies Dual fans, one power supply
Hot-swappable components SFP optical transceivers
Non-rack support Non-rack installation is supported; country-specific power cords are required and must be ordered
Servers supported*
Operating systems supported*
Storage Products Supported*
FC switches supported Current IBM System Storage and TotalStorage SAN b-type and m-type switches, routers and directors (must be running current firmware)
Fibre optic cable Fibre optic cables are required and are available in various lengths in single-mode and multi-mode formats
Power cord Jumper cable is included for rack installation; country-specific power cord must be ordered for desktop/standalone installation
Warranty One year; Customer Replaceable Unit (CRU); warranty service upgrades are available
Optional features 8-Port Activation, Adaptive Networking, Advanced Performance Monitor, Enterprise Package**, Extended Fabric, Fabric Watch, Full Fabric (standard on 2498-B24, optional on 249824E), Trunking Activation, SAO licence
Physical characteristics
Height 4.29 cm/1.69 inches
Width 42.88 cm/16.88 in
Depth 30.6 cm/12.07 in
Weight 4.35 kg/9.3 lb
Temperature Operating: 0° to 40° C (32° to 104° degrees F)

Non-operating: -25° to 70° C (-13° to 158° F)
Humidity Operating: 10% to 85% non-condensing at 40° C (104° F)

Non-operating: 10% to 90% non-condensing at 70° C (158° F)
Power 85 - 264 V ac (Universal), 47 - 63 Hz

* For most current and complete details, refer to

** Enterprise Package includes two 8-Port Activation features, Adaptive Networking, Advanced Performance Monitor, Fabric Watch, Full Fabric Activation (on 249824E) and Trunking Activation

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