HP Serviceguard Toolkit for NFS manual Server-to-Server Cross Mounting, Nfs Nfs

Overview of MC/ServiceGuard NFS

Supported Configurations

Server-to-Server Cross Mounting

Two NFS server nodes may NFS-mount each other’s file systems and still act as adoptive nodes for each other’s NFS server packages. Figure 1-5 illustrates this configuration.

Figure 1-5		Server-to-Server Cross Mounting
	Before Failover:
	Node_A					Node_B
	/Pkg_2/NFS/mountpoint					/Pkg_1/NFS/mountpoint
	/Pkg_1/NFS/mountpoint			NFS	NFS	/Pkg_2/NFS/mountpoint
			NFS	mount	mount NFS
			mount		mount

/Pkg_1/local/mountpoint

/Pkg_2/local/mountpoint

Pkg_1 disks

Pkg_2 disks

After Failover:

Node_A

/Pkg_2/NFS/mountpoint

/Pkg_1/NFS/mountpoint

/Pkg_1/local/mountpoint

NFS NFS

mount mount

Pkg_1 disks

Node_B

/Pkg_1/NFS/mountpoint /Pkg_2/NFS/mountpoint

/Pkg_2/local/mountpoint

/Pkg_1/local/mountpoint

Pkg_2 disks

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