IBM X3850 M2, X3950 M2 manual Other Features, Rack Cable Management and KVM Console Switching

Combining high-performance architecture with high-performance Xeon processors

front LED indicates an error condition, by pressing a button on the front of the server an LED panel will pop out and drop down for easy viewing without the need to open the server cover or remove the server from the rack. The light path diagnostics panel tells the servicer which component requires attention. In addition, many components have their own identifying LEDs. For example, each of the memory modules has an LED next to the socket, as do all processors, all adapter slots, all fans, all power supplies, all voltage regulator modules and the service processor, allowing the servicer to easily identify exactly which component needs servicing. By following the “light path,” the component can be replaced quickly, and without guesswork. (Note: In the event of a failed DIMM, the system will restart and mark the DIMM as bad while offline, thus allowing the system to continue running, with reduced memory capacity, until serviced.)

In addition to the outstanding diagnostic detection, there is a new feature with a digital readout that indicates at what stage of the boot process your system may have experienced trouble. This can reduce the troubleshooting time and help get your system up and running quickly and efficiently.

Other Features

•Trusted Platform Module standard — This module provides a highly secure start-up process from power-on through hand-off to the operating system boot loader. ACPI support is provided to allow ACPI-enabled operating systems to access the security features of this module. (TCG V1.2-compliant.)

•Six USB 2.0 ports — Provides flexibility to add high-speed external devices. The USB 2.0 specification supports up to 480Mbps transfer rates. (Note: Not all USB 2.0 devices are capable of achieving this rate.) Two ports are provided on the front of the server, three are on the back, and one is internal to support the embedded 4GB USB 2.0 Flash Memory Key in selected models.

•Remote Supervisor Adapter II standard — This full-function systems management adapter provides local and remote management functions in a dedicated PCI-X slot, without consuming one of the seven PCIe adapter slots.

•Video — An ATI Radeon ES1000 SVGA video controller on the Remote Supervisor Adapter II provides up to 1024x768 resolution, with a color depth of 32 bits at 85Hz refresh rate, with 16MB of video memory.

•Toolless slides — Allows quick rack installation and quicker upgrade and servicing of the server.

•Toolless chassis — The cover can be opened without tools, and many components can be removed and replaced without tools, including the CD-RW/DVD combo drive, hot-add/hot- swap memory, hot-swap HDDs, adapters, and the integrated optional ServeRAID-MR10k and Remote Supervisor Adapter II. This can save a servicer significant time.

Rack Cable Management and KVM Console Switching

IBM Advanced Cabling Technology (ACT) is an optional feature that offers many advantages over standard KVM cabling across the entire System x and xSeries product line. So now you can interconnect all of your servers with one smart cabling architecture. ACT cabling eliminates the need for one-to-one direct connections between each server and a KVM switch by using a daisy-chain approach.

The snarl of cabling behind most racks is at best inconvenient to work around and at worst an expensive logistical nightmare, requiring the rewiring of servers, PDUs, KVM switches, and other equipment whenever a rack server is added or removed. Even worse, the veil of cables blocks rack airflow and can actually contribute to equipment failure due to overheating. ACT cabling is the solution for reducing behind-the-rack cabling by as much as 87%.

Conventional cabling has bulky KVM cables exiting each server, which then connect to a KVM switch. The cables exiting a series of KVM switches must then be aggregated via additional KVM switches and PDUs, which only increases the number—and cost—of cables, KVM switches and PDUs. Instead, the daisy-chain approach of ACT cabling uses readily available, inexpensive CAT5 and 6 cabling to considerably reduce the number of cables, KVM switches, and PDUs needed, rather than increasing them. If a server is removed or added, no complicated rewiring is needed. One cable connects the first server in the rack to the next, and so on. Up to 16 servers form a chain; up to 8 chains can connect to one Local Console Manager (LCM); 16 LCMs can connect to one Global Console Manager (GCM). In this manner, up to 2,048 servers can be centrally managed. Equally importantly, with ACT—unlike some other offerings— everything is done externally via cabling; no special adapters are required.

The illustration below shows a sample ACT configuration:

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