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CAICCI Requirements

CAICCI has the following installation requirements:

• An IBM supported z/OS version.
• CAICCI must be installed into an APF authorized library. This library must be the same library that was used for the CAIENF service installation.
• CAICCI supports various control options, which may be tailored to meet the individual data center requirements.
• CAICCI requires 172 KB of ECSA for modules and global control blocks. For each concurrent host program, CAICCI requires an additional 304 bytes of ECSA. The amount of ECSA required varies depending on the individual data center configuration and general activity. An estimate may be achieved by the following formula:

  172K bytes + (Number of concurrent host‑related programs using CAICCI) *
  (308 bytes) + 328 * (Number of sessions in a multi‑CPU environment)
  

  Determine the number of concurrent host‑related (application) programs using CAICCI from the ENF STATUS,CCIR operator command, which displays the general status of the CAICCI resources.

  Message CAS9701I displays the number of pending receivers (programs using CAICCI).

• In a multi‑CPU environment, add 258 KB for each CPU defined.
• The ID associated with the CCITCP, CCITCPGW, CCISSL, and/or CCISSLGW started tasks must have a valid security OMVS segment defined.

The following lists the minimum storage requirements for each CAICCI distribution library and does not necessarily represent the actual distribution library allocation that is provided during the installation. Data set allocation JCL and (MSM) XML contains a block size of 0 for FB data sets with a LRECL of 80. This change was made in order to follow both IBM’s SMP/E packaging standards, and CA’s packaging standards. Specifying BLKSIZE=0 will allow your system to choose the most efficient block size for these data sets.