Chapter 3. Operating NetView FTP V2.2.1 MVS - IBM

If any of the following apply to your installation, you must calculate and specify the
amount of additional CSA storage required. This is important if your system suffers
from storage constraints.
� You carry out transfers involving:
– User-written file handlers parameters
– Dynamic VSAM cluster definition parameters
– PDS member selection or exclusion list parameters
– SFS parameters
– OS/400 parameters
– SMS parameters
– Data encryption
– APPC security parameters
– User-exit routine input
– Job submission parameters
– Program call parameters
– Workstation parameters.
� You are not prepared to accept a limited status display.
Calculating the Amount of Additional CSA Storage Required at
Your Installation
The following factors determine how much additional CSA storage is required at a
particular installation:
� The maximum number of concurrent FSBXs allowed
� The actual size of the FSBX required for each queue handler command.
Specifying the Maximum Number of Concurrent FSBXs Allowed: The
maximum number of FSBXs that can exist concurrently is determined by and is
equal to the number of commands that the queue handler can process concurrently.
This number is installation-dependent and is set via the FSBSLOTS queue
handler initialization parameter.
As the maximum FSBSLOTS parameter value is 32, the maximum number of
FSBXs that can exist at any one time is also 32.
Determining the Size of an FSBX: The following factors determine the actual
size of an FSBX:
� If the FSBX is allocated for use with a user query command, its size depends
on the number of user query records to be passed to the user.
� If the FSBX is allocated for use with an administrator query command, its size
depends on the number of administrator query records to be passed to the
administrator.
� If the FSBX is allocated for use with an operator DISPLAY command, its size
depends on the amount of data returned from the component or components
specified in the command. An FSBX of 2042 bytes is needed to hold all possible
data.
204 NetView FTP V2 MVS Installation, Operation, and Administration