The IBM BladeCenter JS21 blade server, is the answer to meet the stringent requirements of small businesses for advanced technology at a very attractive price. The JS21 delivers many leading-edge technologies, ¬Ěsupport for the IBM AIX and Linux operating systems, IBM Advanced POWER Virtualization (APV) and AltiVec SIMD acceleration functionality in a single, highly reliable, high-performance, yet cost-efficient blade server.


Vibrant buys and sells new and used IBM BladeCenter JS21 blade servers, parts and upgrades. For pricing, please Request a Quote today or contact us with any questions or if you have IBM blade servers or equipment available.

BladeCenter JS21 Features
Specifications Description
Form Factor Single-wide blade server for BladeCenter, BladeCenter H or BladeCenter T chassis
Processors 64-bit IBM PowerPC 970MP with integrated AltiVec SIMD accelerator
Number of processors Two-socket single-core (2.70GHz) or two-socket dual-core (2.50GHz)
Cache L2 1MB per core
Memory 2GB (2 x 1GB in single-core) or 4GB (2 x 2GB in dual-core), up to 16GB maximum per bladeB, ECC Chipkill DDR2 SDRAM running at 533 MHz, 4 DIMM slots
Internal disk storage One 73GB 2.5" Serial Attached SCSI (SAS) 10K RPM hard disk drive standard, Up to two 36GB or 73GB non-hot-swap hard drives per blade, maximum 146GB
RAID support Integrated controller for RAID 0/1 mirroring
Networking Integrated Broadcom 5780 controller with Dual Gigabit Ethernet , optional dual gigabit Ethernet daughter card
I/O upgrade Integrated PCI-Express connector for high-speed daughter cards, integrated connector for legacy daughter cards
Optional connectivity 4Gb Fibre Channel, 1 or 10 Gigabit Ethernet, 1X or 4X InfiniBand
Systems management Integrated systems management processor, IBM Director, light path diagnostics, Predictive Failure Analysis, IBM Power Executive, Cluster Systems Management (CSM)B, IPMI-compliant
Operating systems AIX 5L V5.2 and V5.3, SUSE Linux Enterprise Server 9 for POWER, Red Hat Enterprise Linux AS 4 for POWER
System dimensions Blade: 9.65 in (245.2 mm) H x 1.14 in (29 mm) W x 17.55 in (445.8 mm) D, Weight: 9.6 lbs. (4.35 kg)

For pricing on new or used IBM JS21 Blade Servers, upgrades or parts, please contact Vibrant sales at sales@vibrant.com or call 888-443-8606 or 952-653-1700.