Applying PTF LU07591 - Datasets CPDSXML & APDSXML are missing in my installation?
PDSMAN
z/OS
You can allocate empty CPDSXML and APDSXML data sets.
Organization . . . : PO
Record format . . . : VB
Record length . . . : 512
Block size . . . . : 27998
1st extent blocks . : 18
Secondary blocks . : 1
You will be missing the original members of those data sets - five members with prefix CPDS770 and ending in A, C, D, F, P.
But those members are only needed during installation, so it will not be a problem to not have them.