176 IBM eX5 Implementation Guide
VMware ESXi 4.1
4.15 Rack mounting
The x3690 X5 is a 2U-high device (1U is one rack unit and is 1.75 inches). The MAX5
memory expansion unit is an additional 1U high unit. Both devices are designed to be
installed in standard 19-inch racks. Three slide kits are available for use with the x3690 X5, as
listed in Table 4-40.
Table 4-40 Rail kit options
Cable management arms (CMAs) are optional but useful because they help prevent cables
from becoming tangled and causing server downtime. Table 4-41 lists the available cable
management arms.
Table 4-41 Cable management arms
Memory and processor limits: Certain operating systems have upper limits to the
amount of memory that is supported (for example, over 1 TB) or the number of processor
cores that are supported (over 64 cores). See the ServerProven Plan for x3690 X5 for
details and the full list of supported operating systems at the following website:
http://ibm.com/systems/info/x86servers/serverproven/compat/us/nos/matrix.shtml
VMware vSphere support: MAX5 requires VMware ESX 4.1 or later.
VMware ESX and two processors: If you plan to install VMware ESX or ESXi on the
x3690 X5 with two installed processors, you must also install and populate the memory
mezzanine. Failure to do so results in the following error:
“NUMA node 1 has no memory”
Part
number
Feature
code
Name Use
69Y2345 4786 IBM System x3690 X5 Ball
Bearing Slide Kit
Required if you plan to attach a MAX5 unit
69Y4403 4178 Universal Slides Kit Designed to fit telecommunications and
short racks
69Y4389 6457 Friction Slide A low-cost rail kit
Part
number
Feature
code
Name Use with
rail kit
69Y2347 6473 IBM System x3690 X5 Cable Management Arm for Ball Bearing Slides 69Y2345
69Y2344 6474 IBM System x3690 X5 2U Cable Management Arm 69Y4403
69Y4390 6458 Friction CMA 69Y4389
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