Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

You can set up the required pair state pair for SRDF/AR automatically using either:

• symreplicate setup command
• symreplicate start command with the -setup option

Auto-replication setup sets up the required pair states for devices and executes one copy (auto-replication) cycle.

Setting up the device states ahead of time reduces replication processing time.

The setup commands execute one cycle of the symreplicate session (regardless of the number of cycles defined in the options file), and then exits.

The default setup operation provides no I/O optimization, and does not engage any special algorithm changes in the selection of pair assignments. For standard devices encountered without BCVs, the first unassigned BCV device found is paired with the standard.

Setup operations correct only pair states of devices in the group. If a BCV in the group is paired with a standard device outside of the group, setup does not correct it.

The setup command does not exit until the devices are in the required pair state to run the symreplicate session. This may take some time.

The following topics provide more information:

• Setting up single hop manually
• Setting up multi-hop manually
• Setting the symreplicate control parameters

Examples

To execute thesymreplicate setupcommand on a device group (DevGrp1) using an options file (OpFile):

symreplicate -g DevGrp1 setup -options Opfile

The first cycle of the symreplicate start -setup command puts the devices into the required pair state.

To execute the symreplicate start command with the -setup option:

symreplicate -g DevGrp1 start -options Opfile -setup