IBM BladeCenter HS21

High-density, modular blade servers that support the latest Intel® Dual- or Quad-Core Xeon® processors

The HS21 blade server for the IBM BladeCenter platform supports the latest in Intel Xeon IBM HS21 Blade Server

Take advantage of Intel’s dual-core Xeon CPUs with the IBM HS21 blade server. Take advantage of the shared 4MB L2 cache and support for single- and multi-threaded applications. The HS21 also includes high-performance features such as Intel Extended Memory 64 and high-speed fabrics with the BladeCenter H, even thought the HS21 is compatible with the entire BladeCenter chassis family.

The HS21 expands for capacity for up to 32GB of fully buffered memory per server. This cutting-edge technology features the same modular architecture designed for maximum compute density, but they also take advantage of new technology to reduce cooling and power costs without sacrificing performance.

Take advantage of technologies like 2Gb & 4Gb Fibre Channel, Gigabit Ethernet, Myrinet, or 1X & 4X Infiniband with the HS21 blade servers expansion PCI slots.

IBM HS21 Extended Memory Blade Server Specifications
Processors Up to 2 x Dual-core Intel Xeon Processor up to 3.0GHz, or Quad-Core Intel Xeon E5345 with 2.33GHz and up to 1333MHz front-side bus
Max cache 4MB L2 shared cache with dual-core CPUs, or 2 x 4MB L2 cache with quad-core
Memory 32GB Fully Buffered DIMM
Hard drives Small form factor SAS (serial attached SCSI) drive and one optional internal 4GB modular flash drive
RAID Integrated RAID-0 or -1 standard on blade server, integrated RAID-1E or RAID-5 optional with SIO Blade
Networking Dual Gigabit Ethernet, up to 12 ports with SIO blade and MSIM card

The MSIM Combo Form Factor card double port count per blade and offers 10Gb Ethernet expansion options. With the SIO blade and MSIM option the HS21 Extended Memory supports up to 12 ports on a single blade; 4 on the I/O base and 8 ports on the SIO (Storage I/O) Blade.

The HS21 blade servers are also packed with high availability features. With features like an integrated system management processor, Predictive Failure Analysis®, and light path diagnostics, you are ensured of maximum uptime of your blade server computing loads. In addition, you can add or change HS21 blade servers without disrupting the operation of other blade servers in the same IBM BladeCenter chassis.

Calibrated Vectored Cooling™ maintains the health of your system by keeping components cool, so you can maximize compute density. This technology includes features such as open-air inlets on each blade to deliver efficient front-to-back cooling with significantly increasing server infrastructure costs.

IBM HS21 Extended Memory Blade Server Supported Operating Systems

  • Red Hat®
  • SUSE® Linux
  • VMware® ESX Server
  • Windows® Server
  • Solaris 10
  • Open Enterprise Server (Netware 6.5)

Start Configuring Your Blade Server Solution Today

North American Systems’ extensive IBM experience and experience with the Blade platform makes us an ideal partner to work with for those who are looking to pilot or expand their blade server projects and deployment. Our systems engineers can provide in-depth technical insight and expertise, to help you configure a system that meets business requirements while reducing infrastructure costs.


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If you want learn more about what we can do for your IT, please contact us at 800-927-7474, or send us an email at sales@nasi.com to get in touch with one of our experienced account executives.

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