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Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

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Step 5: Perform the symstar setup operation

Description

NOTE:Prior to performing the symstar setup action, ensure that the devices, at each SRDF/Star site, are mapped or masked to the host as required. Once the CG is configured for SRDF/Star, the mapping or masking of a device should not be changed. This can cause unexpected results when issuing symstar commands.

The SRDF/Star symstar setup command:

  • Reads and validates the information in the host composite group definition, and
  • Builds the SRDF/Star definition file that defines the R1 consistency group for the workload site.

This information is combined with the settings in the SRDF/Star options file, and then automatically written in an internal format to the SFS on a array at each site.

Syntax

The following is the syntax for the symstar setup command: 

symstar -cg CgName	setup -options FileName [-distribute]
		[-site SiteName]
		[-opmode <concurrent | cascaded>]
	setup -options FileName -reload_options
	setup -remove [-force]
NOTE:The –opmode <concurrent | cascasded> is required with setup –options for SRDF/Star Configurations with R22 devices. It is not allowed without R22 devices.

Options

-reload_options
Updates the options values in the SRDF/Star definition file.
NOTE:

Do not use this option to update any site name values.

setup -remove
Changes the STAR mode setting of all participating SRDF groups to OFF and removes the SRDF/Star definition files from all reachable sites. It also removes the CG from SRDF/STAR control. Refer to Removal of a CG from SRDF/STAR control for more information.

Specify the setup -remove option from the workload site and when the target sites are either in the Connected or Disconnected state.

setup -options FileName
Validates the specified host composite group definition and builds the file that defines the R1 consistency group for the workload site.
-distribute

This option automatically distributes the SRDF/Star definition file to a array at each site without altering the state of the SRDF/Star setup.

NOTE:

Specify the -distribute option from the workload site when both target sites are reachable.

Examples

To build the definition file for the StarGrp CG using the settings from the options file created in Step 4 (MyOpFile.txt): 

symstar -cg StarGrp setup -options MyOpFile.txt

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