Host connections

View the information that is shown about host connections in block storage systems. The Host Connections tab shows list of hosts defined on the storage device. For VMAX storage systems, the Host Connections tab is renamed to Masking Views.

Host Connections tab

On the Host Connections tab, the following information is shown for each host connection:

Associated Resource: The name of the server or virtualizer that is associated with the host definition. For the server name to be known, it must be probed or added automatically as an agentless server. For a virtualizer name to be known, the virtualizer must be discovered and probed.
Cluster: The name of the cluster, if any, as defined on the storage system. If no cluster is defined for the particular host connection, this field is blank.
FC Ports: The number of Fibre Channel ports that are on the node or module.
Host Type: The type of host connection as defined on the storage system. The type of host connection determines the low-level SCSI parameters that are used for communication between the storage system and the host.
Tip: The host connection type can be different from the operating system of the host.
IP Ports: The number of Internet Protocol ports that are on a node.
IQN: The iSCSI qualified name of the port.
Site: The name of the site to which the host is assigned. If a site name was not specified, its default name or numeric ID is displayed.
Volume Group: The name of the volume group that is associated with the host connection. Applies only to DS8000 storage systems.
Volumes: The number of volumes that are assigned to a specific cluster, host, or port.
WWPNs: The World Wide Port Names (WWPN) that are associated with a host, as defined on the storage system. A WWPN is the unique 64-bit identifier for a port in a Fibre Channel fabric.
Status: The column displays the host connection status of the storage system.

Volume Mappings tab

On the Volume Mappings tab, the following information is shown for each volume mapping:

Associated Resource: The name of the server or virtualizer that is associated with the host definition. For the server name to be known, it must be probed or added automatically as an agentless server. For a virtualizer name to be known, the virtualizer must be discovered and probed.
Encrypted: Shows whether a volume is encrypted. The value N/A indicates that encryption is not supported for this volume.
FC Ports: The number of Fibre Channel ports that are on the node or module.
Host: The name of the host, as defined on the storage system.
Host Type: The type of host connection, as defined on the storage system. This type determines the low-level SCSI parameters that are used for communication between the storage system and the host.
Tip: The host connection type can be different from the operating system of the host.
IP Ports: The number of Internet Protocol ports that are on a node.
IQN: The iSCSI qualified name of the port.
Pool: The name of the pool in which this volume is a member.
Thin Provisioned: Indicates whether this volume is thin-provisioned, and if applicable, the type of thin-provisioning that is used. Thin-provisioned volumes on a DS8000 storage system can be defined as extent space-efficient (ESE) or as track space-efficient (TSE).
Used Capacity (GiB): The storage space of a thin-provisioned volume that is used, measured in GiB, as of the time when asset and health data was last collected for the storage system. The capacity that is used by a thin-provisioned volume is typically less than its provisioned capacity, which is shown in the column Volume Space.
Volume: The name or label of the volume, if available. This name uniquely identifies the volume within the storage system.
Volume Capacity (GiB): The storage capacity of the volume, which is measured in GiB. For thin-provisioned volumes, this value is the provisioned capacity of the volume, called the soft size on an XIV, and not the real space. The real space is called hard size on an XIV and it is allocated.
Volume Group: The name of the volume group on the DS8000 storage system that is associated with the host connection.
Volume ID: The identifier of the volume, such as a serial number or internal ID.

Host port

The following information is available for each host port on a host connection:

Associated Resource: The name of the server or virtualizer that is associated with the host definition. For a virtualizer name to be known, the virtualizer must be discovered and probed.
Associated Port: The name of the server or virtualizer port as displayed on the server or storage system page. If the connected resource is not discovered and probed, the value Unavailable is shown.
WWPN: The World Wide Port Names (WWPN) that are associated with a host, as defined on the storage system. A WWPN is the unique 64-bit identifier for a port in a Fibre Channel fabric.