Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

1. Use the symstar query command to determine if the target sites are in a Connected or Disconnected state.

   To query SRDF group StarGrp:

   symstar -cg StarGrp query -detail
   

   NOTE:symstar query command provides an example of the output returned with this command.
2. The next step varies depending on whether the system state is Connected or Disconnected.

   If the system state is:

   • Connected - The devices are already read/write (RW) on the SRDF link.

     Skip to Step 3.

   • Disconnected - Issue the following commands to connect SRDF/Star: first NewJersey and then London:

     symstar -cg StarGrp connect -site NewJersey
     symstar -cg StarGrp connect -site London
     

3. Use the following commands to bring up SRDF/Star: first NewJersey and then London:

   symstar -cg StarGrp protect -site NewJersey
   symstar -cg StarGrp protect -site London
   symstar -cg StarGrp enable
   

Options

connect

Sets the mode to adaptive copy disk and brings the devices to RW on the SRDF links, but does not wait for synchronization.

protect

Transitions to the correct SRDF mode (synchronous or asynchronous), enables SRDF consistency protection, waits for synchronization, and sets the STAR mode indicators.

enable

Provides complete SRDF/Star protection, including:

• Creates and initializes the SDDF sessions,
• Sets the STAR mode indicators on the recovery groups,
• Enables SRDF/Star to wait for R2-recoverable STAR protection across SRDF/S and SRDF/A before producing a STAR Protected state.