PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.1 (for Linux)

4.5.1 Active maintenance by PCI Hot Plug

This section describes how to set the PCI Hot Plug for redundant PCI.

For the procedure of for setting up the PCI Hot Plug provided by PRIMEQUEST, see "Appendix B Hot Plug" of the "PRIMEQUEST 480/440 Operation Manual".

The following table shows what active operation is enabled through PCI Hot Plug.

[Figure 4.2 Active mainetnance with PCI Hot Plug in redundant line control function]

Mode	System configuration	PCI Hot Plug
		Add	Remove	Swap
Fast switching mode	Single system	A	A	A
	Cluster system	B (*1)	B (*2)	A
NIC switching mode	Single system	A	A	A
	Cluster system	B (*1)	B (*2)	A

[Meaning of the symbols]
A: Active maintenance is enabled when GLS is running
B: Active maintenance is enabled when GLS is stopped

*1: When adding NIC in a cluster system, see "B.4.1.1 Addition procedure" of the "PRIMEQUEST 480/440 Operation Manual" then set the virtual interface according to "5.2 Adding configuration for Cluster System".

*2: When deleting NIC in a cluster system, delete the virtual interface according to "5.4 Deleting configuration for Cluster System" then delete NIC according to "B.4.1.2 Removal procedure" of the "PRIMEQUEST 480/440 Operation Manual".

The hardware change detection tool (kudzu (1)) may be run when the system is rebooted after a NIC is added, removed, or swapped. In such cases, take appropriate action by following the steps below.

1) If a NIC has been added

kudzu (1) displays a window for specifying whether to add device information for the added NIC to the system. From [Configure], [Ignore], and [Do Nothing], select [Configure]. Then, the "Configure TCP/IP" window for setting IP addresses is displayed. Do not enter anything in this window, and select [Back].

2) If a NIC has been removed

kudzu (1) displays a window for specifying whether to delete the device information for the removed NIC from the system. From [Remove Configuration], [Keep Configuration], and [Do Nothing], select [Remove Configuration].

3) If a NIC has been swapped

Follow step 1, "If a NIC has been added," and then step 2, "If a NIC has been removed."

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4.5.1.1 Addition procedure

4.5.1.2 Removal procedure

4.5.1.3 Swapping procedure