The CA-L-Serv file server manages access to VSAM files used by client applications.
When you use the file server, only CA-L-Serv accesses the files you place under its management. To read or write to those files, the client application issues I/O requests that CA-L-Serv processes.
The files that the file server manages can be organized into file groups. This useful feature includes automatic switching to the next file in the group when the current data set is full (such as in the case of journals) and global file management where an entire group can be backed up, restored, and archived as a single entity.
Because the operating system treats CA-L-Serv as the only user for these managed files, users cannot circumvent the internal security mechanism of a client application to access data. For added security, CA-L-Serv provides a logging feature that you can use to track updates to managed VSAM files.
Note: The external security features that are introduced with genlevel 9510 are unchanged with this new genlevel of CA-L-Serv.
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