Dell EqualLogic PS6210XS EqualLogic Group Manager Administrator s Guide PS Ser - Page 281

• All EqualLogic SAN ports by way of the EqualLogic Group IP • NAS cluster SAN Management Virtual IP (VIP) address • Physical SAN ports on every NAS controller and SAN IP address NOTE: Ports referred to here are physical and do not refer to TCP/IP port numbers opened through the TCP/IP stack using an application. Table 51. TCP/IP Port Numbers shows the ports that must be open on the firewall. Table 51. TCP/IP Port Numbers Function Replication setup ports Replication data ports Protocol Port Number(s) SSH, TCP 22, 26, and 3260 TCP 2-Controller Cluster: 10560-10568 4-Controller Cluster: 10560-10576 Ephemeral ports TCP 40000 - 65535 NOTE: The ephemeral port range defines the range of TCP ports allocated by the TCP/IP stack on EqualLogic arrays and FS Series NAS appliances for initiating communications to other EqualLogic arrays or FS Series NAS appliances. For example, when configuring replication between two NAS clusters, an ephemeral port (from the range in table above), such as 41020, is selected on the source NAS cluster and establishes a connection to TCP port 22 on the destination NAS cluster. NAS Replication WAN Network Requirements Replication is possible over a WAN only when the partner system is accessible through a gateway to the Internet or private WAN. When replicating over a WAN, you must have a static route in addition to the regular partnership setup. The WAN can be the public Internet or a private network. Because NAS replication transfers data over the SAN network, you have to have static routes to route replication packets through the designated gateway on the SAN network. A static route provides a network path for the NAS cluster and the NAS controllers to the SAN IP addresses for the partnered NAS cluster and NAS controllers. When you configure NAS replication between two clusters, static routes are added on both clusters automatically from the list of default gateways on members in the EQL group. Optionally, you can change the automatically specified static routes. You can specify a different gateway for the static route or add or delete static routes for replication if the automatic method fails for any reason. The number of static routes that can be configured is not limited. If a static route needs to be modified, delete the static route and then add the static route back with the updated information. NOTE: You can manually configure the NAS static routes only using the CLI. You cannot configure static routes using the Group Manager GUI. If you modify the SAN network settings of a cluster, the software tries to automatically update all the partner clusters. However, to ensure continued operation, static routes on all the partner clusters should be verified by the administrators. NOTE: • The static routes need to be updated on partner clusters, not the cluster whose SAN network changed. • Jumbo frames are not required when connecting over a WAN network. You can use the following SAN network CLI commands to add, delete, or show static routes: • nas-cluster select network select static-route add • nas-cluster select network select static-route delete • nas-cluster select network select static-route show For more information about these CLI commands, see the Dell EqualLogic Group Manager CLI Reference Guide. About Data Recovery 281