GPFS: Administration and Programming Reference - IRA Home

NodeDesc[,NodeDesc...]
Specifies the list of nodes and node designations to be included in the GPFS cluster. Node
descriptors are defined as:
NodeName:NodeDesignations:AdminNodeName
where:
1. NodeName is the hostname or IP address to be used by the GPFS daemon for node to node
communication.
The hostname or IP address must refer to the communications adapter over which the GPFS
daemons communicate. Alias interfaces are not allowed. Use the original address or a name
that is resolved by the host command to that original address. You may specify a node using
any of these forms:
Format Example
Short hostname k145n01
Long hostname k145n01.kgn.ibm.com
IP address 9.119.19.102
2. NodeDesignations is an optional, ’-’ separated list of node roles.
mmcrcluster Command
v manager | client Indicates whether a node is part of the pool of nodes from which
configuration managers, file system managers, and token managers are selected. The
default is client.
v quorum | nonquorum Indicates whether a node is counted as a quorum node. The default
is nonquorum.
3. AdminNodeName is an optional field that consists of a node name to be used by the
administration commands to communicate between nodes.
If AdminNodeName is not specified, the NodeName value is used.
You must provide a descriptor for each node to be added to the GPFS cluster.
-p PrimaryServer
Specifies the primary GPFS cluster configuration server node used to store the GPFS
configuration data. This node must be a member of the GPFS cluster.
-R RemoteFileCopy
Specifies the fully-qualified path name for the remote file copy program to be used by GPFS. The
default value is /usr/bin/rcp.
The remote copy command must adhere to the same syntax format as the rcp command, but may
implement an alternate authentication mechanism.
-r RemoteShellCommand
Specifies the fully-qualified path name for the remote shell program to be used by GPFS. The
default value is /usr/bin/rsh.
The remote shell command must adhere to the same syntax format as the rsh command, but may
implement an alternate authentication mechanism.
-s SecondaryServer
Specifies the secondary GPFS cluster configuration server node used to store the GPFS cluster
data. This node must be a member of the GPFS cluster.
It is suggested that you specify a secondary GPFS cluster configuration server to prevent the loss
of configuration data in the event your primary GPFS cluster configuration server goes down.
When the GPFS daemon starts up, at least one of the two GPFS cluster configuration servers
must be accessible.
Chapter 8. GPFS commands 115