Use the CHANGEDATASET TSO subcommand to update information about data sets defined to DFSMSrmm.

BLKCOUNT(number_of_blocks)

Specifies number of data blocks used by the data set. The value corresponds to that recorded in the data set's End of File label. The minimum allowable decimal value is 0; the maximum allowable decimal value is 4294967295. DFSMSrmm uses BLKCOUNT together with BLKSIZE to calculate the data set's approximate size and the sum of all data set sizes to set the volume usage.

TOTALBLKCOUNT(count)

Use this operand to add a block count for a complete tape data set. The total block count is the sum of all block counts for all volumes on which the data set resides. The minimum allowable decimal value is 0. The maximum allowable decimal value is 18446744073709551615.

Note: When this operand is specified, the FORCE operand must also be specified if DFSMSrmm has automatically recorded information about the volume during O/C/EOV processing of a data set on the volume. To use the FORCE operand, you must have CONTROL access to the STGADMIN.EDG.MASTER security resource and UPDATE access to the STGADMIN.EDG.FORCE security resource.