An unloaded member data record consists of the maximum number of set member data blocks that will fit into the unload data set record. The number of blocks in each member data record varies when the partitioned data set or PDSE has undefined or variable length blocks. A member data record contains member data blocks from only one member and has an end of file block after the last member data block.

Figure 1. Member Data Record Layout

Figure 2 shows the make-up of each member data block.

Figure 2. Member Data Block Layout

Figure 3 shows the make up of the end-of-file block that follows the last data block of a member.

Figure 3. End-of-File Block Layout