Data Space Exploitation (SFS Only)

Start of changeThe ESA/XC and z/XC virtual machine architectures have a facility called data spaces (introduced in VM/ESA version 1 release 1.1).End of change SFS can exploit data spaces to improve the performance of directory control directories. If you have directories that meet these criteria:
  • Seldom updated
  • Accessed in read-only mode
  • Accessed by many users on the local system
then you should read Using Data Spaces (SFS Repository Servers Only) to determine how to exploit data spaces to improve the performance of these directories.

Note: If you want to exploit data spaces, you must make sure that all FBA user storage group minidisks are aligned on 4KB boundaries. See Restrictions for Using Data Spaces on FBA Minidisks for details on aligning FBA minidisks on 4KB boundaries.