Example 2: The main.cf for a Two-Node Asymmetric NFS Cluster
The following example is a basic two-node cluster exporting an NFS file system. The systems are configured as:
- servers: Server1 and Server2
- storage: One VxVM disk group, shared1
- file system: /home
- IP address: 192.168.1.3 IP_nfs1
- public interface: lan0
- Server1 is primary location to start the NFS_group1
In an NFS configuration, the resource dependencies must be configured to bring up the IP address last. This prevents the client from accessing the server until everything is ready, and preventing unnecessary "Stale File Handle" errors on the clients.
include "types.cf"
cluster demo(
UserNames = { admin = "cDRpdxPmHpzS." }
Administrators = { admin }
CounterInterval = 5
)
system Server1(
CPUUsageMonitoring = { Enabled = 0, ActionThreshold = 0,
ActionTimeLimit = 0, Action = NONE, NotifyThreshold = 0,
NotifyTimeLimit = 0 }
)
system Server2(
CPUUsageMonitoring = { Enabled = 0, ActionThreshold = 0,
ActionTimeLimit = 0, Action = NONE, NotifyThreshold = 0,
NotifyTimeLimit = 0 }
)
group ClusterService (
SystemList = { Server1 = 0, Server2 = 1 }
AutoStartList = { Server1 }
OnlineRetryLimit = 3
)
DiskGroup DG_shared1 (
DiskGroup = shared1
)
IP IP_nfs1 (
Device = lan0
Address = "192.168.1.3"
NetMask = "255.255.255.0"
)
Mount Mount_home (
MountPoint = "/export/home"
BlockDevice = "/dev/vx/dsk/shared1/home_vol"
FSType = vxfs
FsckOpt = "-y"
MountOpt = rw
)
NFS NFS_group1_16 (
Nservers = 16
Protocol = all
)
NIC NIC_group1_hme0 (
Device = hme0
NetworkType = ether
NetworkHosts = {"192.168.1.4","192.168.1.5","192.168.1.6"}
)
Share Share_home (
PathName = "/export/home"
)
IP_nfs1 requires Share_home
IP_nfs1 requires NIC_group1_hme0
Mount_home requires DG_shared1
Share_home requires NFS_group1_16
Share_home requires Mount_home
|
