Mainframe Enablers TimeFinder SnapVX and zDP 8.5 Product Guide

Determines whether to run (Yes) or not (No, default) ICKDSF automatically when the target volume is larger than the source volume.

If the target volume is physically larger than the source volume, the additional space is not usable until ICKDSF is run with the REFVTOC option. TimeFinder automatically runs ICKDSF with the REFVTOC option when you specify REFVTOC(YES). The REFVTOC feature rebuilds the VTOC and VTOCIX to reflect the real device capacity.

For the REFVTOC processing to be performed, the target volume must be online to a host after the LINK processing completes. Otherwise, SnapVX is not able to perform the REFVTOC processing automatically, and messages ESNP922W and ESNP923I are issued, prompting you to run the REFVTOC processing manually.

The REFVTOC parameter can be specified on the GLOBAL and LINK commands. It has a matching site option, &REFVTOC.

The REFVTOC parameter applies only to locally addressable volumes. REFVTOC is ignored if you specify it on actions with the SYMDV#, LOCAL, or REMOTE parameters. The REFVTOC parameter is also ignored when you specify volumes by GNS group.

After the snapshot operation completes, the target volume is always immediately available for use.

Syntax

REFVTOC({Yes|No})

Default