Z Os Adcd 1.13 - 13 [2025]

Surprisingly, even in 2025, many mainframe learning environments still reference z/OS 1.13 ADCD because:

ADCD 1.13 is now out of support (z/OS V2R3 end of support: September 2022). Recommended upgrade paths:

| Target | Action | |--------|--------| | ADCD 1.15 (z/OS V2R4) | Redeploy new ADCD | | ADCD 2.1 (z/OS V2R5) | Redeploy new ADCD | | ADCD 2.2 (z/OS V3R1) | Redeploy new ADCD | Z Os Adcd 1.13 - 13

Do not attempt in-place upgrades; ADCD is a fixed distribution, not a production sysplex.

S CICSRGN      (from console)
// then use CECI or EXCI

Unlike z/OS 2.1+, ADCD 1.13 does not require the 64-bit residence mode for all system address spaces. This means it can run on: ADCD 1

Given the assumptions and without a more detailed review based on specific use cases or comparison points:

| Component | Specification | |-----------|---------------| | LPAR memory | 2GB minimum (4GB+ recommended) | | DASD space | ~50-60GB (3390 mod 9 volumes) | | Page datasets | 3 volumes, 3GB each | | User IDs | IBMUSER (password SYS1), ADMIN, etc. | | Started tasks | JES2, CICS, DB2, MQ, IMS, HTTP Server | | TCP/IP | 2 home addresses (loopback, real LAN) | | TTY/3270 | Pre-configured for TN3270 access | Unlike z/OS 2

ADCD is not a production system. You cannot use it for business-critical workloads because:

ADCD 1.13 bundles many IBM and third-party products in a ready-to-use form.