Removing the memory modules: 2145-SV1

You can remove a memory module from a SAN Volume Controller 2145-SV1 node.

Before you begin

DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)
Safety icons for multiple power cords

Review the following information before you begin the removal process.

  • The memory modules are electrostatic-discharge (ESD) sensitive. Take precautions to avoid damage from static electricity.
  • Refer to Figure 1 to locate the dual inline memory module (DIMM) that you want to replace.
    • The system has two processors (CPU0 and CPU1).
    • Each processor has four memory channels, which are labeled A-D.
    • Each memory channel has 3 DIMM slots, numbered 0-2. For example, DIMM slots A0, A1, and A2 are in memory slot A.
    • On the system board, the DIMM slots are labeled according to their associated processor, memory channel, and slot. For example, the label C0A0 identifies DIMM slot A0 for CPU0. If an error occurs, the error event also includes a similar identifier (for example, CPU0_DIMMA0 or CPU0DIMMA0).
    Figure 1. Locations of the DIMM connectors on the system board
    Location of the DIMM connectors on the system board
  • You do not have to replace all of the modules.
    Attention: If a memory DIMM failure to any node is encountered during the update process, you might be required to remove and replace a memory module. Updating the system describes the steps to recover the update when a DIMM failure occurs.

About this task

Perform the following steps to remove the memory modules.

Procedure

  1. Follow the procedure in MAP 5350: Powering off a node to verify that hosts will not lose access to data in volumes before you power off the node.
  2. Remove the node from the rack and place it on a flat, static-protective surface. See Removing a node from a rack.
  3. Remove the top cover, as described in Removing the top covers: 2145-SV1.
  4. Remove the air baffle, as described in Removing the air baffle: 2145-SV1.
  5. Press the locking tabs on the side of the DIMM to eject it, as shown in Figure 2.
    Figure 2. Ejecting a memory module
    Ejecting a memory module
  6. Lift the DIMM up and out of the slot, as Figure 3 shows.
    Figure 3. Removing a memory module
    Removing a memory module
  7. If you have other tasks to complete inside the SAN Volume Controller node, do those tasks now.
Parent topic: Removing the memory modules (DIMM)