Setting up iSCSI at the Storwize V7000 clustered system
The iSCSI setup at Storwize® V7000 is briefly described for the completeness of this document.
It is assumed that the storage administrator has already set up the Storwize V7000 clustered system.
- Get the iSCSI Qualified Name (IQN) for the Linux™ host system and iSCSI portal IP address from the Storwize V7000 storage administrator.
- Configure IPv4 or IPv6 addresses for the system Ethernet ports on the nodes that are in the I/O groups that use the iSCSI volumes.
- Create iSCSI volumes on the Storwize V7000 system.
- Create a host object on the Storwize V7000 system server that describes the iSCSI server initiator to which the volumes are to be mapped, see Creating an iSCSI host on Storwize V7000.
- Map the volume to the host object in the Storwize V7000 system, see Mapping iSCSI volumes to the iSCSI host on the Storwize V7000 system.
Considerations
- Each connection between a host initiator and a Storwize V7000 system Ethernet port can use either IPv4 or Ipv6. Concurrent use of both IPv4 and Ipv6 is not supported.
- Storwize V7000 Ethernet ports 1 and 2 can each be configured for both a cluster IP address and an iSCSI target IP address.
- A different cluster IP address can be assigned to each system Ethernet port, thus providing a configuration with redundant Ethernet networks.
- All service and configuration IP addresses associated with a clustered-system Ethernet port must be on the same subnet across all nodes. Each port can reside in its own subnet.
- When the host object on the Storwize V7000 system side is created or recreated for an iSCSI host, you must log out of any existing sessions from that host and then log back in.