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# Create clone copy sessions

Clone copy sessions enable you to create clone copies of a source volume or storage group on multiple targets.

## About this task

This procedure explains how to create clone copy sessions.

| NOTE: Note the following: You can only perform this operation on a group containing source and target volumes. You can use the target volume of a clone session as the source volume for other clone sessions. To use this feature, you must first enable the SYMAPI_ALLOW_DEV_IN_MULT_GRPS option in the SYMAPI options file. For more information about enabling SYMAPI options, see the Solutions Enabler CLI Command Reference. Data Domain volumes are not supported. The clone copy does not become available to the host until the session is activated. See Roles and associated permissions to determine the user roles that can perform this task. TimeFinder Clone supports up to 256 clone sessions per device.

## Steps

1. Select the storage system.
2. Select DATA PROTECTION > Device Groups.
3. Click the TimeFinder Clone tab to open the TimeFinder Clone list view.
4. Do the following, depending on whether you want to perform the operation at the group level or pair level:
   Group level:
   1. Select a group and click Create Pairs.
   2. Select a source type and a target type.
   Pair level:
   1. Select a group and click to open its Details view.
   2. Click the number next to Clone Pairs.
   3. Select one or more pairs and click Create Pairs.
   4. Click Set Pairs to open the Set Pairs dialog box.
   5. Select a source volume and a target volume, and click Add to make them a pair. Repeat this step as required.
   6. Click OK to return to the Create Sessions dialog box.
5. Click Advanced Options to set the advanced options as described next.

   Setting Advanced Options:

   If performing this operation at the group level, you can optionally select a Pairing Type and select one of the following. If you are not using the Pairing Type option, leave this field set to None.
   - Use Exact Pairs—Allows the system to pair up the volumes in the exact order that they were added to the group.
   - Use Optimized Pairs—Optimizes volume pairings across the local storage system without regard for whether the volumes belong to different SRDF (RA) groups.
   For Copy Mode, select one of the following:
   - Use Background Copy—Specifies to start copying tracks in the background simultaneously as target I/O operations per second are occurring.
   - Use VP SNAP—Specifies to create the session with TimeFinder VP Snap. This option allows multiple sessions to share allocations within a thin pool, thus reducing the storage required for saved tracks. Storage systems running

     For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

     do not support this option.
   - Use No Copy—Specifies to change the session to CopyOnAccess once the session is activated and no full-volume copy initiates. Storage systems running

     For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

     do not support Use No Copy.
   - Use PreCopy—Specifies to start copying tracks in the background before you activate the clone session. Storage systems running

     For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

     do not support this option.

   By default, when creating a clone session, the system creates an SRDF session for maintaining changed track information. To change this default behavior, expand the Differential Mode menu, and select Use No Differential. Otherwise, leave this field set to Use Differential. Storage systems running PowerMaxOS 10 (6079) do not support this option.

   For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

   For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

   For a storage system running PowerMaxOS 10 (6079), a new OR emulation has been added to replace all previous Open System Front End and RDF emulations (see Understanding OR Directors). The system hardware view has an OR DIRECTORS tab, a BE DIRECTORS tab, an EF DIRECTORS tab, and an EM DIRECTORS tab.

   To attach Session Options to the operation, select any number of options.

   Click OK.

6. Do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now, and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.