HP StorageWorks XP Remote Web Console Software - Manual (Page 101)

When the FCESTABL command with the XTNTLTS parameter specified is executed, only the data
on the copy source extents specified by the XTNTLTS parameter is copied to the copy target extents
specified by the XTNTLTS parameter. For example, when you copy only dataset 2, the copy
operation processes as shown in
(page 101) .
Figure 58 Dataset Copying with the XTNTLTS Parameter Specified (Version 2)
When you establish a Version 2 dataset relationship per extent for a volume with CATALOG, there
will be a write operation from the host on both the VTOC and CATALOG.
To perform dataset copying using the FCESTABL command:
1. Using the VTOC list stored in the S-VOL, check the VTOC (INDEX, VTOC, etc.) and the position
of the extent (CCHH, size) used for the dataset copy operation.
2. Create the copy target dataset on the T-VOL.
3. Acquire the VTOC list stored in the T-VOL.
4. Set the T-VOL to offline, or set the ONLINTGT parameter of the FCESTABL command to YES.
5. Execute the FCESTABL command with the XTNTLST parameter.
By using the XTNTLST parameter of the FCESTABL command, you can specify the information
on both the source and target extents. When there are multiple extents, specify the information
on all the extents of the relevant datasets.
Version 2 allows you to use the XTNTLST parameter in the following ways:
•
Specify multiple copy target datasets to be copied simultaneously from a single copy
source dataset.
•
Specify the simultaneous execution of volume copying and dataset copying from a single
source volume.
•
Specify multiple source datasets that are overlapping or are an inclusive part of another
dataset. However, the number of extents that you may specify per dataset is limited to
16.
•
Do not specify multiple target datasets that are overlapping.
Establishing Version 2 Relationships 101