IBM Flex System V7000 Expansion Enclosure 4939H29 Manuel D’Utilisation

Draft Document for Review January 29, 2013 12:52 pm

IBM Flex System V7000 Storage Node Introduction and Implementation Guide

also used to access remote services like authentication servers, NTP, SNMP, SMTP, and 
Syslog systems, if configured. 

Management IP address is configured during first-time setup of your IBM Flex System V7000 
Storage Node. See 4.3, “IBM Flex System V7000 Storage Node Setup Wizard” on page 161.

The management IP address is associated with one of the control canisters in the IBM Flex 
System V7000 Control Enclosure and that control canister becomes the 

. 

Should this node go offline, either planned or unplanned, the management IP address does a 
failover to the surviving partner control canister’s Ethernet port and it becomes the 

.

Following rules should be observed when configuring a management IP for your IBM Flex 
System V7000 Storage Node:

��

Ethernet port 1 (1 Gbps) must be configured with an IPv4 or IPv6 system address.

��

Ethernet port 2 (1 Gbps) can optionally be configured with a second system address.

��

A maximum of one IPv4 address and one IPv6 address can be configured on each of 
Ethernet ports 1 and 2 for system addresses.

��

To ensure system IP failover operations, Ethernet port 1 on all nodes must be connected 
to the same subnet. The system IP address can failover to any control node in the system.

��

If Ethernet port 2 (1 Gbps) is configured with a system IP address, Ethernet port 2 on all 
nodes must also be connected to the same subnet. However, the subnet for Ethernet port 
2 does not have to be the same as Ethernet port 1.

��

Management addresses cannot be configured on ports 3 or 4 (10 Gbps), if present.

The Service Assistant is a web application that helps troubleshoot and resolve problems in a 
Flex System V7000 Storage Node enclosure. Service Assistant is connected to on each IBM 
Flex System V7000 Control Enclosure node canister through the Service IP address.The 
node canister cannot be active as part of a system while it is in service state.

The Ethernet port 1 on each node canister is used for system management, and also used for 
service access when required. In normal operation, the Service IP addresses are not needed 
However, in the event of a node canister problem, it might be necessary for service personnel 
to log on to the node to perform service actions.

To establish connectivity, the management node attempts to use Dynamic Host Configuration 
Protocol (DHCP) to acquire its initial IP address for the Chassis Management Module (CMM) 
Ethernet port. If DHCP is not installed or is enabled and fails, the management node uses the 
static IP address.

Note: IP addresses that are used by hosts to access the system over an Ethernet 
connection are different from management IP addresses. 

Note: The password is required to access the system through the Service IP address. The 
authentication of superuser is always local; therefore, this user ID can be used even when 
a remote authentication server that is used for other users is not available.