Ultra-Dense Server Deployment in Racks

Compaq Ultra-Dense Server Deployment in Compaq Racks 25
128H-0400A-WWEN
3 Configuration Choices
A rack can be configured with servers, storage devices, KVM switches, PDUs, and so on. In this paper,
several rack configurations will be discussed. We will address full-rack configurations that can hold as
many ProLiant DL360 servers as possible, while depending on the rack size, power source, PDU current
rating, and console management choices.
The 9000- and the 7000-series Compaq racks mentioned in this section are 9142, 9136, 9122, 7142 and
7122. The 4000-series racks (36U) are not recommended for full-rack configurations because they are not
sturdy enough to hold 36 ProLiant DL360 servers.
The configurations are listed in alphabetical order (A to N) in Section 3.1 to Section 3.14. Table 3-1 can
be used as a guideline for finding the section and page number to locate a configuration. The worst-case
thermal dissipation and weight (with fixed rails) information for each configuration are also shown here
for a quick reference.
Table 3-1. Rack Configuration Selection Table
PDU Config Rack Number of
Servers
Input
Voltage
Qty.x
Rating
Console
Management
Section
[page]
Thermal
(BTUs/hr)
Weight
(lb)
*A
42U 42 de-rated High 2x 24A Remote 3.1 [27] 34,100 1,665
B 42U 42 High 3x 24A Remote 3.2 [29] 41,820 1678
C 42U 42 High 4x 16A Remote 3.3[31] 41,820 1,690
D 42U 42 de-rated Low 4x 24A Remote 3.4 [33] 34,520 1,690
E 42U 36 Low 4x 24A Remote 3.5 [35] 35,850 1,518
F 42U 42 High 3x 24A Local / Off-Rack 3.6[37] 41,820 1,678
G 42U 35 High 3x 24A Local / In-Rack 3.7 [39] 35,000 1,567
H 42U 35 de-rated High 2x 24A Local / In-Rack 3.8 [41] 33,560 1,555
I 42U 35 Low 4x 24A Local / In-Rack 3.9[43] 35,000 1,579
*J
36U 36 de-rated High 2x 24A Remote 3.10 [45] 34,270 1,406
K 36U 36 High 3x 24A Remote 3.11 [47] 35,850 1,418
L 36U 36 Low 4x 24A Remote 3.12[49] 35,850 1,430
*M
22U 22 High 2x 24A Remote 3.13[51] 25,900 940
N 22U 18 Low 2x 24A Remote 3.14[53] 18,000 825
Note: *These configurations are Best Practices.
Each configuration section includes the parts lists for one rack deployment. For multiple racks, multiply
the parts lists contents by the number of racks. See section 4.2.3 for multiple rack deployment tips.
Figure 3-1 on the next page shows the Configuration Selection Tree for an at-a-glance view of the number
of servers that can be deployed in a 42U rack based on the AC power source, PDU type, server
configuration (to allow for de-rated power), and console management. The 36U and 22U cases are simple
enough that neither the selection table nor the tree is provided in this paper.
Sections 3.1 through 3.14 describe individual rack configuration, each with the rack U-space layout, the
rack contents, the parts lists, and the installation procedures. The rack U-space is numbered from the
bottom to the top for references purposes. Compaq racks have tick marks for every 1U space.