Nodes

View the information that is shown about nodes in file storage systems.

A node is an individual server that is configured within a cluster.

View the hover help for information about the values that are shown about nodes. Additional information is provided about the following column headings:

Acknowledged

Shows whether a user marked the status of a node as acknowledged. An acknowledged status indicates that the status was reviewed and is either resolved or can be ignored.

Cache Gateway Node

The interface node is enabled or is not enabled as a cache gateway node that can exchange data with other systems.

Cloud Gateway

For IBM Storage Scale, the file system that is managed by the node as a cloud gateway service. If the node is a cloud gateway but a file system is not available, one of the following statuses is shown:

Disconnected: The node is a cloud gateway, the gateway service is running, and a cloud account is configured, but the connection to the cloud provider failed.
No Cloud Account: The node is a cloud gateway for a file system and the gateway service is running, but no cloud account is configured.
No File System: The node is a cloud gateway and the gateway service is running, but the node is not yet assigned to a file system.
Stopped: The node is a cloud gateway for a file system, but the gateway service is stopped.

Cluster

The node is a member of the specified cluster. A cluster is a group of application servers or nodes that work together to provide workload balancing and failover services.

Manager, Quorum, NSD Server

For IBM Storage Scale, the roles that are assigned to a node. If the values for Manager, Quorum, and NSD Server are blank, the node is a GPFS client node.

NSDs Served

This information is available only for IBM Storage Scale storage systems. An NSD server is a cluster node that is physically connected to the NSD and provides access to the NSD for other cluster nodes.

The number of NSDs for which this node is an NSD Server is shown. If the cluster node is configured as an NSD Server for only one NSD, the name of the NSD is shown. If the column is blank, the cluster node is not configured as an NSD Server.

If the NSD server is disconnected from the NSD, the cluster nodes that access the NSD through the NSD Server might lose their connection unless redundant NSD Servers are configured.

Protocols

For IBM Storage Scale, the protocols that are configured in Cluster Export Services (CES) to access data on file systems in the IBM Storage Scale cluster. If the protocols are not available because of network or other issues, the status of the node is shown.

No values are shown if the node is not designated as a CES node, the IBM Storage Scale version is earlier than 4.1.1, or the node was never probed.

Nodes in an IBM Storage Scale cluster are designated as CES nodes so that computers that do not run IBM Storage Scale software can access data on the cluster. To ensure high availability, multiple nodes in a cluster are designated as CES nodes.

CES supports the following protocols:

Network File System (NFS)
Common Internet File System (CIFS)
Object

If the protocols are not available on the node, one of the following statuses might be shown:

Network unavailable: The node can't access the IP addresses in the CES address pool.
Root unavailable: The node can't access the shared root directory for CES.
Failed: One of the protocol servers isn't available.
Suspended: The node is suspended.

Role

The role that a host can participate in. A host can have multiple roles, for example, Management, Interface, and Storage.

Host

The name of the monitored host that is associated with the node. If the host is not monitored, go to Resources > Hosts to add the host for monitoring.

Status

The status of the node, including the spare node status. The Online Spare status indicates that the node is a spare node and it is being used as a spare for another node in the I/O group.