Reassigning disks to the nodes

If you are moving external disk shelves that were attached to the original nodes, you need to reassign the disks to the new nodes. You do not need to perform this task if you did not move external disk shelves from the original system to the new one. Steps On the new node, display the new node system ID by entering the following command at the Maintenance mode prompt: disk show Example *> disk show Local System ID: 101268854 … Record the new node system ID.  Reassign the node’s spares, disks belonging to root, and any SFO aggregates by entering the following command: disk reassign -s original_sysid -d new_sysid The disk reassign command will reassign only those disksRead More

Configuring CNA ports

If a node has onboard CNA ports or a CNA card, you must check the configuration of the ports and possibly reconfigure them, depending on how you want to use the upgraded system. Before you begin You must have the correct SFP+ modules for the CNA ports. CNA ports can be configured into native Fibre Channel (FC) mode or CNA mode. FC mode supports FC initiator and FC target; CNA mode allows concurrent NIC and FCoE traffic the same 10GbE SFP+ interface and supports FC target. CNA ports might be on an adapter or onboard the controller and have the following configurations: CNA cards ordered when the controller is orderedRead More

Unjoin Nodes from a cluster

Before you remove and decommission the nodes and transfer any storage to the new nodes, you might need to reassign the epsilon to a new node. You also must unjoin the original nodes from the cluster. Steps Disable high-availability by entering the following command at the command prompt of one of the original nodes: storage failover modify -node original_node_name -enabled false node_name is the name of one of the original nodes. Access the advanced privilege level by entering the following command on either node: set -privilege advanced The system displays the following message: Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel. do you wish toRead More

Networking in ONTAP

Networking in ONTAP can be complicated, but as soon you see the whole picture, it’s easier. There are physical and logical ports. Physical are the ‘real’ ports, vlan tagged ports and interface groups. Each physical port needs to be configured before you can use them. You have several options you can configure like: VLANs Interface Groups MTU sizes FlowControl To modify a physical port, just change the part you want Netapp::*> net port modify                                            [-node] <nodename>                        Node   Read More

Networking in ONTAP-part 2

Now we are going to talk about Logical InterFaces or Lifs and their characteristics. Roles Roles will vary depending on the type/quantity of additional interface cards installed. Before creating/joining the cluster, modify the network port roles to match the desired configuration. Node management lif The lif used by administrators to connect to and manage a node. These ports can be VLAN-tagged virtual ports where the underlying physical port is used for other traffic. The default port for node management differs depending on hardware platform. Some platforms have a dedicated management port (e0M). The role of such a port cannot be changed, and these ports cannot be used for data traffic. Cluster Lif TheRead More