Both IPv4 and IPv6 addresses are supported. These addresses are supported by the
control enclosure unless they are for file modules, which only support
IPv4.Storwize V7000 Unified can operate with either internet protocol or with both
internet protocols concurrently.
For configuration and management, you must allocate an IP address to the system,
which is referred to as the management IP address. For additional fault tolerance,
you can also configure a second IP address for the second Ethernet port on the file
module. The storage system also has a management IP address known as the
system IP address.
Note: Storwize V7000 Gen1 models 2076-312 and 2076-324 have two 10 Gbps
Ethernet ports per node canister, numbered ports 3 and 4. The 10 Gbps ports can
only be used for iSCSI or Fibre Channel over Ethernet host attachment. They
cannot be used for configuration or management. A Storwize V7000 Gen2 model
2076-524 can have up to eight 10 Gbps Ethernet ports per control enclosure when
two 4-port 10 GbE host interface cards are installed.
In addition to the management IP addresses, the system is configured with one or
more service IP addresses. Service IP addresses are used to gain access to the
service assistant when a node is not operating correctly as part of the system. As
with the management IP addresses, service IP addresses can be IPv4 addresses,
IPv6 addresses, or both. You should choose a fixed IP address per Ethernet port, or
you can configure Storwize V7000 Unified to use a DHCP-allocated address.
Attention: The address for a management IP cannot be the same address that is
used for the service IP. Using the same IP address causes an error.
Any system that accesses the service IP address must be able to access a
management IP address, or a dynamically-allocated service address if DHCP is
used.
You can configure Storwize V7000 Unified for event notification by SNMP, syslog
or email. To configure notification, you must ensure that the SNMP agent, syslog
IP addresses or SMTP email server IP addresses can be accessed from all Storwize
V7000 Unified management addresses.
Storwize V7000 Unified does not use name servers to locate other devices. You
must supply the numeric IP address of the device. To locate a device, the device
must have a fixed IP address.
The nodes in a Storwize V7000 Unified system can receive native IPv4 or IPv6
packets. The nodes cannot operate as an endpoint of a tunnel where an IPv4
packet contains an IPv6 payload or where an IPv6 packet contains an IPv4
payload.
To summarize then, with regards to IPv6 protocols supported:
v IPv6 for CIFS/NFS data traffic (to File Modules) is not supported
v IPv6 for iSCSI data traffic (to Control Enclosure) is supported
v IPv6 for Management is not supported.
Call home IP addresses and ports
To provide for call home, Storwize V7000 Unified nodes require access from the
service IP addresses to the IPs/ports shown in Table 35 on page 36.
Chapter 2. Planning for adding file modules 35
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