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Chapter 10 # Preparing to Replace Hardware in a Cluster For information about what to consider before replacing hardware in a cluster, see the following sections. Guidelines for Replacing Hardware Reference for Replacing Hardware ## Guidelines for Replacing Hardware Follow these guidelines when replacing hardware on your cluster: Before replacing hardware on the master node, perform a switchover and then replace the hardware on the vice-master node. Replace hardware of one type with hardware of the same type, for the following reasons: The vice-master node and master node must have the same hardware and software configuration. If several nodes are running the same applications, the nodes might require the same hardware. To replace hardware of one type with hardware of another type, you must reinstall the node with a configuration adapted to the new hardware type. Perform a procedure for each item of hardware that you change: If you change one item of hardware, perform the procedure for that type of hardware. For example, if you replace a disk perform only the procedure to change the disk. If you change a board that contains Ethernet cards, perform the procedure to change the board and the procedure to change the Ethernet card. If you change a board that contains Ethernet cards and a disk, perform the procedure to change the board, the procedure to change the Ethernet cards, and the procedure to change the disk. ## Reference for Replacing Hardware The following table points to the procedures for replacing boards, Ethernet cards, and disks, for each type of node. Table 10-1 Reference for Replacing Hardware
Node Type | Hardware Type | For information, see
--- | --- | ---
Vice-master | CPU Board | Replacing a Board on a Node
Ethernet Card | Replacing Ethernet Cards on the Vice-Master Node or a Dataless Node
Disk | Replacing the Disk on the Vice-Master Node
Diskless | CPU Board | Replacing a Board on a Node or Replacing a Board on a Diskless Node With the DHCP Client ID Boot Policy
Ethernet Card | Replacing Ethernet Cards on a Diskless Node
Disk | N/A
Dataless | CPU Board | Replacing a Board on a Node
Ethernet Card | Replacing Ethernet Cards on the Vice-Master Node or a Dataless Node
Disk | Replacing a Dataless Node Disk
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