IRR63041I

Explanation
The RACF® data
set specified on the BLKUPD command cannot be validated for its format
because the ICB cannot be read.

System action
BLKUPD command processing ends with a return code
of 12.

Programmer response
Check the data set name. Be sure the data
set block size is 4096.

Problem determination
Run the IRRUT200 utility to validate the RACF data set and to point out
any discrepancies. Call your IBM® support
center with this message number and a listing of the data set you
are trying to work with.