Dell PowerEdge M1000e Technical Manual

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Dell PowerEdge M1000e Technical Manual Manual pdf 55 page image

55 PowerEdge M1000e Technical GuideThe VersaRails static rails are not intended to be mounted in threaded-hole racks, because the railscannot be fully tightened and secured against the rack mounting flange. Neither the VersaRails northe RapidRails kits support mounting in 2-post racks. The min-max values listed in Table 14represent the allowable distance between the front and back mounting flanges in the rack.Supported racksTable 14.MountinginterfaceRailtypeRack types supported Rail adjustability range (mm) Rail depth (mm)4-Post 2-Post Square Round Threaded w/outCMAwithCMASquare Round Thread Flush Center Min Max Min Max Min MaxRapidRails Static √ X X X X 712 755 — — — — 703 —VersaRails Static √ √ X X X 706 755 706 755 — — 703 —CablingOne of the advantages of a modular server system is the reduction in cable management needswithin a rack system. The inclusion of fabric switches, integrated KVM, and system managementaggregation at the CMCs provides six-fold or better cable reduction. Table 15 shows a comparisonof a typical reduction available when using the M1000e modular system with integrated switches,compared to traditional rack-and-stack components. The configuration in Table 15 assumes aserver with four Ethernet ports and two Fibre Channel ports. In support of the M1000e, Dell offers amodular system cable management system to ease installation in Dell or other industry-standardracks.Typical modular server system rack height and cable reductionTable 15.ComponentRackheightAC powercables Ethernet cables FC cables KVM cables2-socket server 1Ux16 2x16 4x16 2x16 USBx16 + VGAx16KVM 1U 1 — — USBx1 + VGAx1Ethernet switches 1Ux4 1x4 — — —FC switches 1Ux2 1x2 — 2x2 —Total rack 23U height 39 AC cables 72 Ethernet cables 36 FC cables USBx17 + VGAx17M1000e equivalent 10U height 6 AC cables 16 Ethernet cables 4 FC cables USBx1 + VGAx1Cable management arm (CMA)Since the M1000e does not need to be extended out of the rack for service, neither the RapidRailsnor the VersaRails static rail systems support a cable management arm. Included instead are a strainrelief bar and cable enumerator clips (Figure 30) to help manage and secure the potentially largenumber of cables exiting the back of the system.