Installing the SPARC Enterprise M3000 Server in a Sun Rack

C H A P T E R 3

This chapter describes how to mount an M3000 server in a Sun Rack 1000, Sun Rack 900, and Sun Rack II.

The following topics are in this chapter:

M3000 Server Slide Rail Kit

Installing the M3000 Server in a Rack

Power Wiring Configurations

Caution - The M3000 server can weigh up to 23 kg (50.7 lb). Two people are required to mount the server safely in the cabinet.

Up to twenty-one 2U M3000 servers can be mounted in the following cabinets:

Sun Rack 1000, which comes as a 42-rack unit (U) or a 38U cabinet

Sun Rack 900, which comes as a 38U or 36U cabinet

Sun Rack II cabinet, which comes in a 42U cabinet

TABLE 3-1 M3000 Server External Dimensions
Width	Depth	Height	Weight
440 mm (17.4 in.)	657 mm (25.9 in.)	87mm (3.4in.) 2U	23 kg (50.7 lb)

The M3000 server is designed to be mounted in a standard 19-inch rack with a depth of 1000 mm or more. See Mounting Specifications.

3.1 M3000 Server Slide Rail Kit

The server is mounted in the rack using slide rail assemblies. Refer to the instructions packaged with the slide rail kit for assembling and attaching the rail kit and cable management arm (CMA) to the SPARC Enterprise M3000 server, in preparation for installing the server in the rack.

Caution - For stability, populate the rack with the servers at the lowest location before filling in the higher areas.

3.2 Installing the M3000 Server in a Rack

1. Extend the anti-tilt bar or anti-tilt legs.

For details on extending the anti-tilt bar or anti-tilt legs, see Appendix B, Extending the Anti-Tilt Bar or Anti-Tilt Legs .

Caution - The anti-tilt bar must be extended or the rack might topple when the server is installed on the extended slide rails.

Caution - For stability, populate the rack with the servers at the lowest location before filling in the higher areas.

2. Extend the slide rails from the slide assemblies.

Caution - Do not use the handles on the front of the server to lift the server. The front handles are designed for sliding the server in and out of the rack. The handles will not support the weight of the server.

3. With the assistance of another person, install the chassis into the cabinet by aligning the chassis rails with the rail parts in the rack and carefully pushing in until you hear a click and the server stops.

The server will stop mid-way in the rack after the sound of the click.

4. Release the latches on the sides of the server and continue to push in the server until completely seated in the rack.

5. Tighten the thumbscrews in the chassis bezel to hold the chassis securely in the rack.

3.3 Power Wiring Configurations

To prevent catastrophic failures, the design of your input power sources must ensure that adequate power is provided to your servers. Use dedicated AC breaker panels for all power circuits that supply power to your server. Electrical work and installations must comply with applicable local, state, or national electrical codes.

3.3.1 For the M3000 Server in a Sun Rack 1000/900

The Sun Rack 1000/900 can fit up to two modular power supplies (MPS). Each MPS is 2U. The MPS must be installed in the bottom of the cabinet.

TABLE 3-2 and FIGURE 3-1 show an example of the recommended wiring configurations for the M3000 servers with one MPS.

TABLE 3-2 Recommended Wiring Configurations for Eighteen M3000 Servers With One 60A 3-Phase MPS
Server	PSU_1	PSU_0
M3000_11_14_17	MPS B5	MPS A5
M3000_10_13_16	MPS B4	MPS A4
M3000_9_12_15	MPS B3	MPS A3
M3000_2_5_8	MPS B2	MPS A2
M3000_1_4_7	MPS B1	MPS A1
M3000_0_3_6	MPS B0	MPS A0

TABLE 3-3 Recommended Wiring Configurations for Eighteen M3000 Servers With Two 30A 3-Phase MPS
Server	PSU_1	PSU_0
M3000_11_14_17	MPS_1-B5	MPS_1-A5
M3000_10_13_16	MPS_1-B4	MPS_1-A4
M3000_9_12_15	MPS_1-B3	MPS_1-A3
M3000_2_5_8	MPS_0-B2	MPS_0-A2
M3000_1_4_7	MPS_0-B1	MPS_0-A1
M3000_0_3_6	MPS_0-B0	MPS_0-A0


Server	PSU_1	PSU_0
M3000_8_11	MPS_B5	MPS_A5
M3000_7_10	MPS_B4	MPS_A4
M3000_6_9	MPS_B3	MPS_A3
M3000_2_5	MPS_B2	MPS_A2
M3000_1_4	MPS_B1	MPS_A1
M3000_0_3	MPS_B0	MPS_A0

Note - For M3000 servers in positions twelve and above, use power cords that are 2.5m in length to reach from the servers to the MPS units.

FIGURE 3-1 Sun Rack 1000 With M3000 Servers and One MPS

Figure showing a Sun Rack 1000 with M3000 servers and one MPS.

Note - The numbering in a rack reads from bottom to top and right to left.

3.3.2 For the M3000 Server in a Sun Rack II

To ensure redundant power sourcing, use the recommended power wiring configurations for the M3000 server in a Sun Rack II.

Sun supports up to two PDUs in a Sun Rack II cabinet, one on either side. SPARC Enterprise M3000 servers can use PDU types 15k, 25k, or 35k. For more information on PDUs in a Sun Rack II, refer to the Sun Rack II User’s Guide.

TABLE 3-5 Recommended Wiring Configurations for Eight M3000 Servers With 5kVA 1ph PDUs
Server	PSU_1	PSU_0
M3000_6_7	PDU_A Group_2	PDU_B Group_3
M3000_3_4_5	PDU_A Group_1	PDU_B Group_4
M3000_0_1_2	PDU_A Group_0	PDU_B Group_5

TABLE 3-6 Recommended Wiring Configurations for Sixteen M3000 Servers With 10kVA 1ph PDUs
Server	PSU_1	PSU_0
M3000_14_15	PDU_A Group_5	PDU_B Group_0
M3000_11_12_13	PDU_A Group_4	PDU_B Group_1
M3000_8_9_10	PDU_A Group_3	PDU_B Group_2
M3000_6_7	PDU_A Group_2	PDU_B Group_3
M3000_3_4_5	PDU_A Group_1	PDU_B Group_4
M3000_0_1_2	PDU_A Group_0	PDU_B Group_5

TABLE 3-7 Recommended Wiring Configurations for Twenty-one M3000 Servers With 15kVA 1ph PDUs
Server	PSU_1	PSU_0
M3000_18_19_20	PDU_A Group_5	PDU_B Group_0
M3000_15_16_17	PDU_A Group_4	PDU_B Group_1
M3000_12_13_14	PDU_A Group_3	PDU_B Group_2
M3000_8_9_10_11	PDU_A Group_2	PDU_B Group_3
M3000_4_5_6_7	PDU_A Group_1	PDU_B Group_4
M3000_0_1_2_3	PDU_A Group_0	PDU_B Group_5

TABLE 3-8 Recommended Wiring Configurations for Twenty-one M3000 Servers With 3ph PDUs
Server	PSU_1	PSU_0
M3000_14_17_20	PDU_A Group_5	PDU_B Group_0
M3000_13_16_19	PDU_A Group_4	PDU_B Group_1
M3000_12_15_18	PDU_A Group_3	PDU_B Group_2
M3000_2_5_8_11	PDU_A Group_2	PDU_B Group_3
M3000_1_4_7_10	PDU_A Group_1	PDU_B Group_4
M3000_0_3_6_9	PDU_A Group_0	PDU_B Group_5

Note - The numbering in a rack reads from bottom to top and right to left.

FIGURE 3-2 Sun Rack II with Twenty-One M3000 Servers and Two PDUs

Figure showing Sun Rack II with twenty-one M3000 servers and two PDUs.

Figure Legend
1	PDU A	5	Group_2
2	PDU B	6	Group_3
3	Group_0	7	Group_4
4	Group_1	8	Group_5

3.3.3 Circuit Breaker Capacity and Characteristics

Qualified equipment cabinets housing these midrange servers require their own customer-supplied circuit breaker and AC receptacle for each power cord. Provide a stable power source, such as an uninterruptible power system (UPS), to reduce the possibility of component failures. If the computer equipment is subjected to repeated power interruptions and fluctuations, it is susceptible to a higher component failure rate than it would be with a stable power source.

Note - If the appropriate electrical receptacle is not available in your country, the connector may be removed from the cord. The cord can then be permanently connected to a dedicated branch circuit by a qualified electrician. Check local electrical codes for proper installation requirements.

3.3.4 Grounding

Both midrange servers are shipped with grounding-type (three-wire) power cords. Always connect the cords into grounded power outlets. Each power cord will also supply your server with proper earth ground. Sun has tested the equipment cabinets for radiated and conducted emissions and have determined there is no difference in emissions with or without a ground strap grounding the equipment cabinets. No additional earth grounding is necessary but it may be added if desired.

Contact your facilities manager or a qualified electrician to determine what type of power is supplied to your building.