EA-enabled table spaces and index spaces
You can enable partitioned table spaces for extended addressability (EA), a function of DFSMS. The term for table spaces and index spaces that are enabled for extended addressability is EA-enabled.
You must use EA-enabled table spaces or index spaces if you specify a maximum partition size (DSSIZE) that is larger than 4 GB in the CREATE TABLESPACE statement.
Both EA-enabled and non-EA-enabled partitioned table spaces can have only one table and up to 4096 partitions. The following table summarizes the differences.
EA-enabled table spaces | Non-EA-enabled table spaces |
---|---|
Holds up to 4096 partitions of 64 GB | Holds up to 4096 partitions of 4 GB |
Created with any valid value of DSSIZE | DSSIZE cannot exceed 4 GB |
Data sets are managed by SMS | Data sets are managed by VSAM or SMS |
Requires setup | No additional setup |