CICS/TS architecture part 2 - structure & flow

• Storage Manager Domain

Storage Manager introduction; Transaction isolation; Storage violations; SM - the big picture; Five DSAs; EIGHT DSAs; At last the bad guys get caught!; Dynamic Storage Areas; TRANISO=YES master switch in SIT; SIT parm combinations; The eight DSAs (below the Bar); DSA Extent and Pagesize; DSA Extents; Philosophy; MVS IARSUBSP macro; Branch in Subspace Group; Define transaction; DEFINE PROGRAM; Who can touch whom?; Application test; Choose not to use it?; Checklist; Storage Management; Storage Control Program (SCP); Standard interface; Generic Gate SMNT; Pagepool Areas; Page Allocation Map (PAM); Cartesian Tree Nodes; Storage Access Table Entries; SUAs; SM transaction (SMX); Extent management blocks; Subpool management; Controlling storage by subpool (below the Bar and above the Bar); (G)SCEs and (G)SCFs; Fixed length subpools; Storage violations; Simple overrun; Complex Inter-Task - detectable and undetectable; Code violation in (E)SDSA; Where to start?; Trace Table Entry example; Mapping the scope of the damage; Scoping the damage; SM 64-bit support; Storage Manager anchor block; Storage Manager GDSA; Global Page Pool; Global Page Pool Extent; Global Page Allocation Map; Global Storage Allocation Element; Global Subpool Control Area.

• Log Manager Domain

Introduction to z/OS Logger; Log Uses / Types; Logger Exploiter Summary; Known problems with CICS/ESA; CICS V4 AKPFREQ considerations; Log Manager concepts; Coupling Facility; Primary Storage; DASD-only logging; The CICS Log; Log trimming; Offloading; What may prevent trimming?; Chain moving; CICS/TS activity keypointing; Log Manager Anchor; Journal Entry; Journal info header; VERBX CICS650,'LG=3'.

• Recovery Manager Domain

Recovery Manager control blocks; Recovery Manager (RM); Local Resource Owners (RO); The 'in-doubt' window problem; Shunting; Unit Of Work creation; RMUW gate, CREATE_UOW function; Commit / Backout processing; Resource Owners (ROs); Backout processing; Backward recovery; CICS startup; INITIAL start; COLD start; WARM or EMERGENCY start; CICS/TS utility program DFHRMUTL; RMUW block.

• Timer Domain

Timer (TI); Timer Domain Anchor Block; Timer Request Element (TRE) Layout; IPCS VERBX CICS650,'TI=3'.

• Interval Control

Purpose; Control Blocks; Permanent System Tasks; Control Block relationships; Interval Control Element (ICE); ICE creation; ICE expiry.

• Transient Data

Purpose; Implementation; Types; CEDA Define TDQueues; TD WAIT and TXN WAIT definitions; Control Blocks; Destination Control Table Entry (DCTE); Control Block relationships; String Control; Waiter Chains.

• Temporary Storage

Purpose; Implementation - RDO; Temporary Storage domain; Changes; Types; Auxiliary TS Control Intervals; Segment size; Auxiliary DATA addresses; TS datasharing concepts; Control Blocks: The Big Picture; The Control Blocks; A small problem to peruse; This is what we did; This is the result; This is what the Dispatcher saw.

• Directory Manager Domain

Directory Manager (DD); DD Control Blocks; IPCS VERBX CICS650,'DD=3'.

• Terminal Control

Support; TC - the big picture; Control Blocks; TCT Prefix (TCTFX); TCT Terminal Entry (TCTTE); TCT System Entry (TCTSE); TCT Mode Entry (TCTME); TCT Skeleton Entry (TCTSK); TCT Console Control Element (TCTCE); TCT Node Initialisation Block (TCTNIB); TCT Autoinstall Work Element (TCTWE); Automatic Initiate Descriptor (AID); Control Block relationships; Dump Data.

• Socket Domain

Socket Domain Control Blocks; CICS Web API; CICS Web Support; HTTP; HTTP definition; TCPIPSERVICE definition; Authenticate; ECI definition; TCPIPSERVICE; IIOP definition; EJB support; Connection balancing; Socket overview; Listener operation; MAXSSLTCBs; Encryption; SSLDELAY; DFH$RING; MAXSOCKET; Socket anchor; Control Blocks @ CICS/TS 3.2; Sockets Domain - summary; Sockets Domain - Control Blocks; Sockets Domain Socket Manager; Socket Manager Token Pool; Free Chain of Tokens; Sockets Domain TCPIPSERVICE Blocks; Sockets Domain VERBX CICS650,'SO=2'; Sockets Domain VERBX.

• Web Domain

Web Domain Control Blocks; Web externals; WEB RECEIVE; CWXN processing overview; WEB SEND; Processing overview; Web Domain Control Blocks; Web Domain anchor; 3270 bridge; 3270 bridge Control Blocks; IPCS VERBX CICS650,'WB=2; 3270 web bridge anchor block.

• Lock Manager Domain

Lock Manager anchor; QC2 Locks.

• Document Domain

Document Handler Domain Control Blocks; DH Domain externals; APRM and APRG; RDO definitions; Doctemplate; DOCUMENT CREATE; DOCUMENT DELETE; DOCUMENT INSERT; DOCUMENT SET; DOCUMENT RETRIEVE; Document embedded tags; DOCUMENT CREATE internals; Processing overview; Document template descriptor; DH Control Blocks; IPCS VERBX CICS650,'DH=1'; IPCS VERBX CICS650,'DH=2'.