![]() ![]() , CLONE-UNIT = *FIRST-POSSIBLE / *FROM-SHOW-OUTPUT(.) / *BY-SYMMETRIX(.) / Depending on the options with which it was created, the pair is in the status COPY-ON-ACCESS, COPY-IN-PROGRESS or COPIED (see the /START-CLONE-SESSION command on "START-CLONE-SESSION Creates a clone pair"). In this case the source unit is specified in the UNIT operand, and the clone pair of the target unit is selected using the SELECT=*TARGET-UNIT operand.Īfter the clone pair has been activated/split, the Copy-On-Access process begins (see “Overview” in "TimeFinder/Clone (Symmetrix/VMAX3)"). The target unit can also be the original unit of a clone pair. When the SRDF function is used, the original unit can also be the source unit of a remote copy pair. The command is executed only if the clone pair is in the CREATED, RECREATED or PRECOPY status. No concurrent remote copy is supported in such a configuration.Īfter the clone pair has been activated, it assumes the SPLIT status. In this case the source unit is specified in the UNIT operand, and the clone pair on the target unit is selected using the SELECT=*TARGET-UNIT operand. When the REC function is used, the original unit can also be the source unit of a remote copy pair. The CLONE-UNIT operand enables the clone unit which is to be activated to be selected if multiple pairs in the SYNCHRONIZED status exist for an original unit.īy default the first possible clone unit is activated. The command is executed only if the clone pair has the SYNCHRONIZED status. The command is not required for this function and therefore rejected. They can be changed in the SHC-OSD parameter file (see "Configuration of SHC-OSD") for the next time SHC-OSD is started or with /MODIFY-SHC-PROCESSING for ongoing operations (see "MODIFY-SHC-PROCESSING Changes settings of SHC-OSD"). The current security settings can be displayed with /SHOW-SHC-PROCESSING (see also "SHOW-SHC-PROCESSING Displays settings of SHC-OSD"). SHC-OSD checks the global and task-specific security settings before this command is executed (see "Security settings of SHC-OSD"). For this purpose a synchronization point should be created for the data before the command is called, see section "Activating clone pairs". The file consistency over multiple volumes must be ensured by the caller. By default the first clone unit is activated. The CLONE-UNIT operand enables the clone unit which is to be activated to be selected if several pairs in the CREATED status exist for an original unit. ![]() The clone pubset on the clone units can be renamed directly using the NEW-PUBSET operand if an SF pubset is involved. When the original units are selected via a pubset ( UNIT=*BY-PUBSET), clone units must exist for all units of the pubset. The original units of the clone pairs are specified in the UNIT operand. From the application’s viewpoint, the clone unit contains all the data of the original unit at command processing time. Following successful activation, the original unit and the clone unit are split: Both can be accessed from the host by applications. ACTIVATE-CLONE activates one or more clone pairs, each of which consists of one original unit and one clone unit. ![]()
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