The following considerations relate to the VSAM component:
AIX systems—A problem with the IBM Data Facility Product (DFP) can cause an S0C1 abend. For the PTF that is correct for your installation, see APAR OY19066.
You can circumvent this situation without the PTF by making sure that all paths for the data set are opened at the same time.
ESDSs—A problem with the IBM DFP can cause an S0C4 abend unless you have PTF UY15539 (FMID HDP2210), PTF UY15538 (FMID HDP2230), or a superseding PTF.