Installing a compute node in a chassis

Use this information to install a compute node in a IBM NeXtScale n1200 Enclosure.

Before you install the compute node in a chassis, read Safety and Installation guidelines.

Statement 21
Graphic illustrating the Safety statement 1 symbol

CAUTION:
Hazardous energy is present when the compute node is connected to the power source. Always replace the compute node cover before installing the compute node.

If you are installing a compute node model without an integrated Ethernet controller, you must install a network interface adapter before you install the compute node in the chassis for management network communication. For a list of supported optional devices for the compute node, see the IBM ServerProven website.

The following tables provide an indication of the quantity of nodes that can be installed in a chassis for specific processor types assuming nodes have all DIMM slots, PCIe slots, and hard disk drives populated. The tables are based on 900-watt or 1300-watt power supplies and the indicated power settings. However, when building a NeXtScale n1200 Enclosure solution, you are required to validate the power requirements for your configuration using the latest version of the IBM Power Configurator to ensure that the number of power supplies selected are adequate for supporting your chassis configuration. Failure to validate the configuration with the IBM Power Configurator tool could result in system errors, failure to power on, or microprocessor throttling, and limiting system's ability to leverage all of the microprocessor performance. The Power Configurator tool can be found at the IBM Power Configurator for System x, BladeCenter, and Flex System website. If there are questions or issues regarding a configuration and Power Configurator, please send them to power@us.ibm.com.

Table 1. Compute nodes supported (high-line AC input, with 900-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 12 12 12 12
2 12 12 11 12
60 1 12 12 12 12
2 12 12 10 12
70 1 12 12 12 12
2 12 12 8 11
80 1 12 12 11 12
2 12 12 8 9
95 1 12 12 10 12
2 12 12 6 10
115 1 12 12 8 10
2 12 10 5 8
130 1 12 12 7 9
2 10 8 4 7
Note: 1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
Table 2. Compute nodes supported (low-line AC input, with 900-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 12 12 9 11
2 12 12 6 10
60 1 12 12 7 9
2 12 9 5 7
70 1 12 12 7 9
2 12 9 5 7
80 1 12 12 6 8
2 10 9 5 7
95 1 12 11 6 7
2 9 7 4 6
115 1 11 9 5 6
2 7 6 3 5
130 1 9 8 4 5
2 6 5 3 4
Note: 1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
Table 3. Compute nodes supported (high-line AC input, with 1300-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 12 12 12 12
2 12 12 12 12
60 1 12 12 12 12
2 12 12 12 12
70 1 12 12 12 12
2 12 12 12 12
80 1 12 12 12 12
2 12 12 12 12
95 1 12 12 12 12
2 12 12 10 12
115 1 12 12 12 12
2 12 12 8 12
130 1 12 12 12 12
2 12 12 7 11
Note: 1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
Table 4. Compute nodes + two 130-watt2 GPUs supported (high-line AC input, with 1300-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 6 6 6 6
2 6 6 6 6
60 1 6 6 6 6
2 6 6 6 6
70 1 6 6 6 6
2 6 6 6 6
80 1 6 6 6 6
2 6 6 6 6
95 1 6 6 6 6
2 6 6 5 + 1 microprocessor node 6
115 1 6 6 6 6
2 6 6 5 6
130 1 6 6 5 + 1 microprocessor node 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
Note:
  1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
  2. The 130-watt GPU is IBM option part number 00J6160.
Table 5. Compute nodes + two 225-watt2 GPUs supported (high-line AC input, with 1300-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 6 6 5 + 1 microprocessor node 6
2 6 6 5 6
60 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
70 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
80 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
95 1 6 6 4 + 2 microprocessor node 6
2 6 6 4 5
115 1 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
2 6 6 3 + 1 microprocessor node 4 + 1 microprocessor node
130 1 6 6 4 + 1 microprocessor node 5
2 6 6 3 + 1 microprocessor node 4 + 1 microprocessor node
Note:
  1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
  2. The 225-watt GPUs include IBM option part numbers 00D4192, 00J6161, 00J6163, and 00J6165.
Table 6. Compute nodes + two 235-watt2 GPUs supported (high-line AC input, with 1300-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 6 6 5 + 1 microprocessor node 6
2 6 6 4 + 1 microprocessor node 6
60 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
70 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
80 1 6 6 5 6
2 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
95 1 6 6 4 + 2 microprocessor node 5 + 1 microprocessor node
2 6 6 4 5
115 1 6 6 4 + 1 microprocessor node 5 + 1 microprocessor node
2 6 6 3 + 1 microprocessor node 4 + 1 microprocessor node
130 1 6 6 4 5
2 6 6 3 + 1 microprocessor node 4
Note:
  1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
  2. The 235-watt GPU is IBM option part number 00FL133.
Table 7. Compute nodes + two 300-watt2 GPUs supported (high-line AC input, with 1300-watt power supply x6).

Six column table documenting the microprocessor SKU, # of microprocessor(s), non-redundant or N+1 with OVS, N=5, N+1 redundant, N=5, N+N redundant, N=3, and N+N redundant with OVS, N=3.

Microprocessor SKU (W)

# of microprocessor(s)

 Non-redundant or N+1 with OVS1, N=5 N+1 redundant, N=5 N+N redundant, N=3 N+N redundant with OVS1, N=3
50 1 6 6 4 + 2 microprocessor node 5 + 1 microprocessor node
2 6 6 4 5
60 1 6 6 4 5
2 6 6 3 + 2 microprocessor node 4 + 2 microprocessor node
70 1 6 6 4 5
2 6 6 3 + 2 microprocessor node 4 + 2 microprocessor node
80 1 6 6 4 5
2 6 6 3 + 2 microprocessor node 4 + 2 microprocessor node
95 1 6 6 4 4 + 2 microprocessor node
2 6 6 3 + 1 microprocessor node 4 + 1 microprocessor node
115 1 6 6 3 + 2 microprocessor node 4 + 2 microprocessor node
2 6 5 + 1 microprocessor node 3 3 + 2 microprocessor node
130 1 6 6 3 + 2 microprocessor node 4 + 1 microprocessor node
2 6 5 + 1 microprocessor node 3 3 + 2 microprocessor node
Note:
  1. OVS (Oversubscription) of the power system allows for more efficient use of the available system power.
  2. The 300-watt GPU is IBM option part number 00J6162.

1300-watt power supply supportability

The following table provides the 1300-watt power supply supportability to have better performance and power efficiency.

Table 8. 1300-watt power supply supportability.

Four column table documenting the quantity of 1300-watt power supplies, non-redundant, N+1 redundant, and N+N redundant.

Quantity of 1300-watt power supplies FPC power bank
Non-redundant N+1 redundant N+N redundant
2 Support Non-support
3
4
5
6 Support
Note: When setting power redundancy through FPC after nodes are powered on, it is possible that the current power bank is not sufficient to allow N+1 or N+N configuration. Remove some or all of the nodes or lighten nodes configuration before the redundancy policy can be applied.

To install the compute node in a chassis, complete the following steps.
Figure 1. Installing the compute node in a IBM NeXtScale n1200 Enclosure
Graphic illustrating installing the compute node in a IBM NeXtScale n1200 Enclosure

  1. Select the node bay.
    Note:
    1. If you are reinstalling a compute node that you removed, you must install it in the same node bay from which you removed it. Some compute node configuration information and update options are established according to node bay number. Reinstalling a compute node into a different node bay can have unintended consequences. If you reinstall the compute node into a different node bay, you might have to reconfigure the compute node.
    2. To maintain proper system cooling, do not operate the IBM NeXtScale n1200 Enclosure without a compute node or node bay filler in each node bay.
  2. Make sure that the front handle on the compute node is in the open position.
  3. Slide the compute node into the node bay until it stops.
  4. Push the front handle on the front of the compute node to the closed position.
    Note: After the compute node is installed, the IMM2 in the compute node initializes and synchronizes with the Chassis Management Module. This process takes approximately 90 seconds. The power LED flashes rapidly, and the power button on the compute node does not respond until this process is complete.
  5. Turn on the compute node (see Turning on the compute node for instructions).
  6. Make sure that the power LED on the compute node control panel is lit continuously, indicating that the compute node is receiving power and is turned on.
  7. If you have other compute nodes to install, do so now.
  8. You can place identifying information on the labeling tabs that are accessible from the front of the compute node.

If this is the initial installation of the compute node in the chassis, you must configure the compute node through the Setup utility and install the compute node operating system (see Updating the compute node configuration).

If you have changed the configuration of the compute node or if you are installing a different compute node from the one that you removed, you must configure the compute node through the Setup utility, and you might have to install the compute node operating system (see Using the Setup utility).

Parent topic: Removing and replacing components