You must use specific settings to identify Lenovo Storage V series clustered systems as hosts to IBM® XIV® Storage System systems.
An XIV® Nextra™ host is a single WWPN, so one XIV® Nextra™ host must be defined for each Lenovo Storage V series node port in the clustered system. An XIV® Nextra™ host is considered to be a single SCSI initiator. Up to 256 XIV® Nextra™ hosts can be presented to each port. Each Lenovo Storage V series host object that is associated with the XIV® Nextra™ system must be associated with the same XIV® Nextra™ LUN map because each LU can only be in a single map.
An IBM® XIV® Storage System Type Number 2810 host can consist of more than one WWPN. Configure each Lenovo Storage V series node as an IBM® XIV® Storage System Type Number 2810 host and create a cluster of IBM® XIV® Storage System systems that corresponds to each of the Lenovo Storage V series nodes in the Lenovo Storage V series system.
Table 1 lists the host options and settings that can be changed using the IBM® XIV® Storage System and XIV® Nextra™ Storage Management GUI.
| Option | Data type | Range | IBM® XIV® Storage System Type Number 2810 and XIV® Nextra™ default setting | Lenovo Storage V series required setting | Notes |
|---|---|---|---|---|---|
| Type | Enum | FC/iSCSI | Not applicable | FC | The Type must be FC for Lenovo Storage V series. |
| XIV® Nextra™ map_set_special_type CLI command or IBM® XIV® Storage System Type Number 2810 special_type_set CLI command | Enum | default/hpux | default | default | This command is used by hpux hosts only. Do not use the command for Lenovo Storage V series LUNs. |
| WWPN | int64 | Any | Not applicable | Node port | For XIV® Nextra™, one host for each node port WWPN in the clustered system must be defined. For IBM® XIV® Storage System, Type Number 2810 one host port for each node port WWPN in the clustered system must be defined. |
| LUN Map | String | Any | Not applicable | Any | For XIV® Nextra™, each Lenovo Storage V series host in the XIV® Nextra™ system must be associated with the same LUN map because each LU can be only in a single map. |