EAV (Extended Address Volume)
This concept can be thought of as like treating all or a subset of the disk and SSD drives installed on your PC as one disk.
- This is a mechanism for creating a logical disk volume made up of multiple physical disk volumes.
EBCDIC (Extended Binary Coded Decimal Interchange Code)
EBCDIC is analogous to ASCII and UTF-8.
- This is the encoding scheme that data is often encoded in on z/OS. This is a precursor to the ASCII standard.
ESDS (Entry Sequence Data Set)
- A VSAM data set that is organized sequentially, which means that each record must be accessed one at a time starting with the first record.
ESM (External Security Manager)
- These are the security products that maintain the security policies for the system (RACF/ACF2/TOP SECRET).