If you use the UNIX file sharing facility (NFS), you can manage all HiRDB system definition files (except for unit control information definition files) from a single server machine. This is called sharing of HiRDB system definition files. The following figure shows sharing of HiRDB system definition files.
Figure 1-3 Sharing of HiRDB system definition files
Not shared | Shared |
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HiRDB system definitions must be managed separately for each server machine. | HiRDB system definitions can be managed from a single server machine (except for the unit control information definitions). |
When a system common definition must be modified, the same modification must be made for all server machines. For example, if there are four server machines, there are four system common definitions. Because the contents of the system common definitions must be identical, all four must be modified. |
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