Change The Cnc Port Mode; Connecting Two Storage Systems To Replicate Volumes - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

NOTE: The following IP addresses are reserved for internal use by the storage system: 169.254.255.1,
169.254.255.2, 169.254.255.3, 169.254.255.4, and 127.0.0.1. Because these addresses are routable, do not use
them anywhere in your network.
6. Perform one of the following:
To save your settings and continue configuring your system, click Apply.

To save your settings and close the panel, click Apply and Close.

A confirmation panel appears.
7. Click Yes to save your changes. Otherwise, click No.
8. Sign out to use the new IP addresses to access the Storage Manager Console.

Change the CNC port mode

This subsection applies to DS Series FC/iSCSI models only. While the USB cable is still connected and the
terminal emulator session remains active, perform the following steps to change the CNC port mode from the
default setting (FC), to either iSCSI or FC-and-iSCSI used in combination.
When using FC SFPs and iSCSI SFPs in combination, host ports 0 and 1 are set to FC (either both 16Gb/s or both
8Gb/s), and host ports 2 and 3 must be set to iSCSI (either both 10GbE or both 1Gb/s).
Set CNC port mode to iSCSI
To set the CNC port mode for use with iSCSI SFPs, run the following CLI command at the command prompt:
set host-port-mode iSCSI
The command notifies you that it will change host port configuration, stop I/O, and restart both controllers. When
asked if you want to continue, enter y to change the host port mode to use iSCSI SFPs.
Once the set host-port-mode CLI command completes, it will notify you that the specified system host port
mode was set, and that the command completed successfully.
Continue with
Set CNC port mode to FC and iSCSI
To set the CNC port mode for use with FC SFPs and iSCSI SFPs in combination, run the following CLI command
at the command prompt:
set host-port-mode FC-and-iSCSI
The command notifies you that it will change host port configuration, stop I/O, and restart both controllers. When
asked if you want to continue, enter y to change the host port mode to use FC and iSCSI SFPs.
Once the set host-port-mode CLI command completes, it will notify you that the specified system host port
mode was set, and that the command completed successfully.
Continue with

Connecting two storage systems to replicate volumes

Replication is a licensed feature for disaster recovery. This feature performs asynchronous replication of
block-level data from a volume in a primary system to a volume in a secondary system by creating an internal
snapshot of the primary volume, and copying the changes to the data since the last replication to the secondary
system via FC or iSCSI links.
The two associated standard volumes form a replication set, and only the primary volume (source of data) can be
mapped for access by a server. Both systems must be licensed to use the replication feature, and must be connected
through switches to the same fabric or network (no direct attach). The server accessing the replication set need only
86 Installation
step 13 of "Setting network port IP addresses using the CLI port and cable" (page
step 13 of "Setting network port IP addresses using the CLI port and cable" (page
81).
81).