Cisco InfiniBand 4x User's Guide download pdf (Page 21)

Chapter 1. IBM BladeCenter products and technology 7

brownouts, rather than shut down completely, or fail, the HS21 XM reduces the processor

frequency automatically to maintain acceptable thermal and power levels.

All HS21 XM models also include support one SAS hard disk drive and one USB-based

modular flash drive. The optional 30mm Storage and I/O (SIO) Expansion Unit connects to a

blade (model-dependent) to provide an additional three 2.5 SAS HDDs with hot-swap

support, optional RAID-5 with battery-backed cache, and four additional communication

ports.

Figure 1-5 shows the HS21 XM blade server.

Figure 1-5 The HS21 XM blade server, machine type 7995

Features of the HS21 XM include:

򐂰 Blade servers supported in all IBM BladeCenter chassis.

򐂰 Two processor sockets supporting either dual-core Intel Xeon 5100 series processors or

quad-core Intel Xeon 5300 series processors.

򐂰 Up to 32 GB of system memory in 8 DIMM sockets.

򐂰 One internal 2.5-inch SAS HDD with support for the Storage and I/O (SIO) expansion unit

blade with an additional three 2.5-inch SAS HDD bays and RAID support.

򐂰 An optional Modular Flash Drive can be used in place of, or in addition to, the internal SAS

HDD, as a boot device.

򐂰 Two Gigabit Ethernet ports standard; plus more, using either a 2-port Gigabit Ethernet

Expansion Card or a PCI I/O Expansion Unit II.

򐂰 Integrated Baseboard Management Controller (BMC) service processor to monitor server

availability, perform Predictive Failure Analysis®, etc., and trigger IBM Director alerts.

򐂰 Support for IBM PowerExecutive™ 2.0, software designed to take advantage of new

system power management features that monitor actual power usage and provide power

consumption capping features.

򐂰 Concurrent keyboard, video, mouse (KVM) support with addition of the optional IBM

BladeCenter Concurrent KVM feature card.

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Cisco InfiniBand 4x User's Guide Page 21