Bra using ipcs with ims 2010-08-09 1947
Transcript of Bra using ipcs with ims 2010-08-09 1947
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© IBM Corporation 2010
Using IPCS (Interactive Problem Control System) with IMS
Jeff Maddix Silicon Valley lab
2010 – Information Management Tech Conference - Brazil
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IBM Corporation, 2010c
Using IPCS with IMS
This handout is reference material which outlines various IPCS commands which
have proven useful for IMS dump diagnostics.
Agenda
IMS Dumps and IPCS
Verifying Dump Contents
IMS Formatting of Unformatted Machine-readable Dumps
IMS Offline Dump Formatter
IMS Interactive Dump Formatter
Controlling IPCS for Easier Dump Analysis
IPCS Storage Analysis Commands
Miscellaneous IPCS Commands
Using IPCS With IMS Agenda
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IMS and IPCSIMS and IPCS
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Dumps and IPCS
IMS Dumps and IPCS
IMS uses IPCS to aid in the formatting and analyzing of unformatted machine-readable dumps
SVC dumps
SYSMDUMP ABEND Dumps
Stand-alone dumps
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IBM Corporation, 2010c
Using IPCS with IMS
SVC Dumps
SVC Dumps
Received by issuing
SDUMP or SDUMPX macro in an authorized program
DUMP or SLIP command
Specifying SLIP or DUMP SYS1.PARMLIB members
IEASLPxx or IEADMCxx
The following dump SDATA options should minimally be specified in the with IMS SVC dumps
SDATA=(CSA,PSA,RGN,SQA,SUM,TRT,ALLNUC,LPA)
Add to SDATA GRSQ for DUMP commands issued for wait conditions
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IBM Corporation, 2010c
Using IPCS with IMS
SYSMDUMP Dumps
SYSMDUMP Dumps
Received if SYSMDUMP DD statement in the region JCL and
ABEND macro used with DUMP
CALLRTM macro used with DUMP=YES
SETRP macro DUMP=YES
Internal SVC dump failure in the IMS control region
The following dump options should be specified in the SYS1.PARMLIB
(IEADMR00) member to ensure that adequate areas of MVS storage are
dumped to diagnose the problem under most circumstances:
SDATA=(CSA,RGN,SQA,SUM,TRT,ALLNUC,LPA)
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IBM Corporation, 2010c
Using IPCS with IMS
Stand-Alone Dumps
Stand-Alone Dumps
A dump that is performed separately from normal system operations and does not require the system to be in a condition for normal operation
Disabled wait
Enabled wait
MVS System Loop
Partial MVS system hang
To obtain a Stand-alone dump
Code/Assemble the AMDSADMP macro
Place the stand-alone dump program onto the residence volume in ready-to-load form
Initialize and Run Stand-alone Dump program
See MVS Diagnosis: Tools and Service Aids, for further information
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Controlling IPCS for Easier Controlling IPCS for Easier
Dump AnalysisDump Analysis
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IBM Corporation, 2010c
Using IPCS with IMS
Find the MVS Level of the DUMP:Use ISPF View
ISPF Primary Option Menu
Select option 1 - View
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IBM Corporation, 2010c
Using IPCS with IMS
Find the MVS Level of the Dump:Browse the Dump Dataset
View Entry Panel
Place the dump dataset into the Data Set Name field
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IBM Corporation, 2010c
Using IPCS with IMS
Find the MVS Level of the Dump:Find the IEAVCVT
While Browsing the dump dataset
Enter "F IEAVCVT" to find the MVS Level
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IBM Corporation, 2010c
Using IPCS with IMS
Find the MVS Level of the Dump:Translate the FMID into z/OS Rel
Use the FMID to translate to the MVS level
HBB7707 = z/OS 1.4, HBB7708 = z/OS 1.5, HBB7709 = z/OS 1.6,
HBB7720 = z/OS 1.7, HBB7730 = z/OS 1.8, HBB7740 = z/OS 1.9 ,
HBB7750 = z/OS 1.10, HBB7760 = z/OS 1.11
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IBM Corporation, 2010c
Using IPCS with IMS
Invoke IPCS from ISPF
IPCS Primary Option Menu
The IPCS level used should match the dump MVS level
Each panel in IPCS has a unique title
Select the DEFAULTS panel, Option 0 to set the default dump dataset
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IBM Corporation, 2010c
Using IPCS with IMS
Set the Default Dump Dataset
IPCS Default Values Menu
Set the IPCS Scope to BOTH for local and global defaults
Enter the dump dataset in the Source field
Be sure to hit the <ENTER> key to accept the new values
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IBM Corporation, 2010c
Using IPCS with IMS
Use ISPF START to Create Multiple Logical Sessions
ISPF START/SWAP allows you to view multiple logical screens while diagnosing
Enter Command: START - to create a new logical screen
Enter Command: SWAP n - to swap to the desired logical screen
Enter Command: SWAP LIST - to display active ISPF logical sessions
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IBM Corporation, 2010c
Using IPCS with IMS
Routing IPCS Output to a Dataset
Route IPCS output to a dataset for editing
Use ISPF 3.2
Choose dsname
Enter "A" for allocate
Units=CYLS
Primary=10
2ndry=50
DirBlks=0
RecF=VBA
LRECL=137
BLKSZ= (leave blank)
Go to IPCS COMMAND Panel
TSO ALLOC FI(IPCSPRNT) DSN('dsname') SHR REUS
--- enter the IPCS Command for which output is desired -- PRINT NOTERM
Example: IP SUMMARY FORMAT PRINT NOTERM
Alternatively, PRINT NOTERM can be specified in the IPCS Defaults Panel
IP CLOSE PRINT
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Pointer Panel Commands
IPCS Pointer Panel Commands
Select Option 1 (BROWSE)
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Pointer Panel Commands,Continued
POINTERS Panel PTR line commandsS - Browse the storageR - Repeat the current PTR entryF - Format the STRUCTURE control block
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Pointer Panel Commands,Continued
POINTERS Panel PTR line commandsF - Format the STRUCTURE control block
Format example for SDWA
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Instruction Formatting
To convert a range of storage assembler operation codes to their equivalent assembler instructions, use the following command:
IP LIST aaaaaaaa.:eeeeeeee. INSTR ASID(x'nnnn') Where aaaaaaaa = Start address of the instruction set Eeeeeeee = End addresss of the last instruction in the set
Example: IP LIST 000C2BC0.:000C2C0D. INSTR ASID(x'018E')
Start AddressEnd Address
Command
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Instruction Formatting,Continued
Example: IP LIST 000C2BC0.:000C2C0D. INSTR ASID(x'018E')
Command
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Verifying Dump ContentsVerifying Dump Contents
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IBM Corporation, 2010c
Using IPCS with IMS
What was the Reason for the Dump?SVC DUMP
What was the reason for the dump?
Enter Command: IP LIST TITLE
Note: IPCS commands can be entered from any IPCS panel if prefixed by IPCS or IP
Displays the dump title
A structured title usually indicates that a component module requested the dump.
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IBM Corporation, 2010c
Using IPCS with IMS
What was the Reason for the Dump?MVS SLIP Trap
What was the reason for the dump?, Continued
Enter Command: IP LIST TITLE - This dump title indicates SLIP
Enter Command:
IP LIST SLIPTRAP or
IP LIST 0 L(1000) COMPDATA(IEASLIP) - for longer SLIP Commands
Will show MVS SLIP specifications for SLIP dumps.
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IBM Corporation, 2010c
Using IPCS with IMS
What was the Reason for the Dump?MVS DUMP Command
What was the reason for the dump?, Continued
Enter Command: IP LIST TITLE
Title presented below indicates that an MVS operator probably took the dump.
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IBM Corporation, 2010c
Using IPCS with IMS
What was the Reason for the Dump?MVS DUMP Command
What was the reason for the dump?, Continued
Enter Command: IP VERBX MTRACE to see the MVS System Console buffers
Find the dump title: F 'CBAU2A04 HUNG'
Will show you the DUMP command used to take the dump
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IBM Corporation, 2010c
Using IPCS with IMS
What is the Time of the Dump?
Enter Command: IP STATUS; F GMT
Represents the global data capture completion time
Save both the Local and GMT times for later dump comparisons
Some dump timestamps are in local time and others are in GMT time
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IBM Corporation, 2010c
Using IPCS with IMS
What is the Earliest Dump Start Time?
Sometimes precision matters.....
Global data capture start time: IP L CVT+23C?+DC?+118 L(8)
Machine timestamp in local time
LTOD can be used IP Sometimes precision matters.....
Global data capture start time: IP L CVT+23C?+DC?+118 L(8)
Machine timestamp in local time
Local time
Not local time
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Dumped ASIDs
Verify Dumped ASIDs
Enter Command: IP CBF RTCT
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Dumped ASIDs, Continued Verify Dumped ASIDs, Continued
Find the ASTB - Address Space Table
SDAS column will contain dumped ASIDs
NOTE: This table will contain all zeros for a SYSMDUMP
SYSMDUMPs contain only one ASID and should initialize to that ASID in the IPCS Defaults Values Panel.
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IBM Corporation, 2010c
Using IPCS with IMS
Which Jobnames were Dumped?
Which Jobnames were Dumped?
Format the dumped ASIDs from the RTCT ASTB
Enter Command: IP SELECT ASID(X'2d',X'62',X'165',X'63',X'162')
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IBM Corporation, 2010c
Using IPCS with IMS
Which Storage Areas were Requested?
Which Storage Areas were Requested? Enter Command: IP CBF CVT+23C?+9C? STR(SDUMP) VIEW(FLAGS)
SDATA flags tell you what storage was dumped. IMS needs: PSA, SQA, RGN-Private, CSA, SQA,Summary Dump, TRT
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Whether the SDUMP was Complete
Verify Whether the SDUMP was Complete
Enter Command: IP L E0. L(16) BLOCK(0)
Partial dump bits - Mapped by MVS SDRSN DSECT
If all bits are zeros, SDUMP was successfully captured
If all bits are not zeros, use MVS SDRSN DSECT to interpret the bit settings
See z/OS MVS Data Areas, Vol 4
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS DUMPINFO Summary
IPCS command DUMPINFO summarizes the prior information:
Enter Command: IP DUMPINFO
Title
Earliest Time
ASID
Time
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS DUMPINFO Summary, Continued
IPCS command DUMPINFO summarizes the prior information:
Enter Command: IP DUMPINFO, scrolling forward
SDRSN
SDATA
CPUs
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS DUMPINFO Summary, Continued
IPCS command DUMPINFO summarizes the prior information:
Enter Command: IP DUMPINFO, scrolling forward...
SDATA
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Private Region Storageis Dumped
Verify Private Region Storage is Dumped
SDUMP SDATA may indicate private is dumped, but is private storage in the dump dataset?
To determine this, Select Option 1 (BROWSE)
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Private Region Storageis Dumped, Continued
Verify Private Region Storage is Dumped, Continued
Select the beginning of user private x'6000' for each dump ASID to determine if storage is present
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IBM Corporation, 2010c
Using IPCS with IMS
Verify Private Region Storageis Dumped, Continued
Verify Private Region Storage is Dumped, Continued
If storage is listed, indicates private storage is present
If storage is not listed, indicates private storage is not present
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IMS Formatting of IMS Formatting of
Unformatted Machine-Unformatted Machine-
readable Dumpsreadable Dumps
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Formatting of Unformatted Machine-readable Dumps
IMS provides two interfaces to produce IMS formatting of unformatted machine-readable dumps
IMS Offline Dump Formatter
The Offline Dump Formatter utility is invoked as a verb exit from the Interactive Problem Control System (IPCS).
IMS user control statements passed to the ODF to control dump format options
IMS Interactive Dump Formatter
The Interactive Dump Formatter provides ISPF dialog support for offline dump formatter requests
Allows you to format your IMS dumps through a series of interactive menu-driven panels rather than by memorizing the Offline Dump Formatter commands or editing a DFSFRMAT dataset
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IMS Offline Dump IMS Offline Dump
FormatterFormatter
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Offline Dump Formatter
Invoking the IMS Offline Dump Formatter
Start the IPCS Dialog from ISPF
Initiate the formatter VERBX command
VERBX IMSDUMP 'jjjjjjjj [,p] FMTIMS fmtimsoptions' ipcsoptions
Where
jjjjjjjj = Job name or started task name of either the IMS CTL, DL/I, or the IMS batch address space
p = ODF control parameters
FMTIMS - REQUIRED KEYWORD unless DFSFRMAT DD dataset is allocated and used to contain FMTIMS fmtimsoptions
fmtimsoptions- IMS formatting options described on the next page
ipcsoptions - Valid IPCS command options as described in the MVS IPCS Commands Manual
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Offline Dump Formatter - Continued
Invoking the IMS Offline Dump Formatter - Continued fmtimsoptions - High-level, no additional arguments required
ALL or ALL,MIN AOI AUTO, or AUTO,MIN, or
AUTO,SUM CBTDB or DB,MIN DBRMDBRC DC or DC,MIN DEDB or DEDB,MIN DISPATCH or DISPATCH,MIN EMH or EMH,MIN LOG or LOG,MIN LR LUM MSDB or MSDB,MIN
OTMAQM or QM,MIN RESTART SAVEAREA, or SAVEAREA,MIN or
SAVEAREA,SUM SB or SB,MIN SCD or SCD,MIN SDESB SMBSSPST SUBS SUMMARY or SUMMARY,MIN SYSTEM or SYSTEM,MIN TMS TMSC
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Offline Dump Formatter - Continued
Invoking the IMS Offline Dump Formatter - Continued fmtimsoptions - Low-level, additional arguments required as shown
CBTE,cbteid
CLB,address or CLB,nodename or CLB,lterm name or CLB, comm id
DPST,address or DPST, number or DPST,name
LLB,link number
LUB,lu name
POOL,poolid or POOL,poolid,MIN
SAP,sapaddr or SAP,ecbaddr
SYSPST,system pst address or SYSPST,system pst name
TRACE,name or TRACE,name,MIN
DTT,db tracking task name
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IMS Interactive Dump IMS Interactive Dump
FormatterFormatter
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter
In The IMS Application menu (DFSAPPL) can be used to invoke IMS ISPF applications, of which the IMS Interactive Dump Formater is included.
From the TSO Ready prompt or ISPF enter
'imshlq.SDSEXEC(DFSAPPL)' 'HLQ(imshlq)'
Where imshlq is the high level qualifier of the IMS distribution datasets
IPCS must be installed on the MVS image
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter
Invoking the IMS Interactive Dump Formatter
Begin an IPCS dialog
Select Option 0 (DEFAULTS)
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Specify the dump dataset name
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Select option 2 (Analysis)
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Select option 6 (Component)
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Select DFSAAMPR (IMS Interactive Dump Formatter)
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Select Option 0 (INIT) to initialize the dump dataset
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued Invoking the IMS Interactive Dump Formatter, Continued
Enter the IMS Control or DLI region jobname, then press <Enter>
A series of informational panels will appear as the environment initializes; exit the panels with PF3 until returning to IMS DUMP CONTENT STATUS AND CONTROL
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Return to the IMS DUMP FORMATTING PRIMARY MENU using PF3
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
You can now use the IMS Interactive dump formatter to format IMS control blocks
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Continued
Invoking the IMS Interactive Dump Formatter, Continued
Option 2 (HI-LEVEL) provides the high level IMS dump format options
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
These are the various high-level fmtimsoptions and control parameters available from the Offline Dump Formatter
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options, Continued
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL), Continued
These are the various high-level fmtimsoptions and control parameters available from the Offline Dump Formatter
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options, Continued
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL), Continued
These are the various high-level fmtimsoptions and control parameters available from the Offline Dump Formatter
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options - DISPATCH
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
Notable high level dump format options
DISPATCH
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options - DISPATCH, Continued
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
Notable high level dump format options - DISPATCH, continued
RESUMED/SUSPENDED, ASIDS, CECB, TCB
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options - DISPATCH, Continued
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
Notable high level dump format options - DISPATCH, continued
Time of last dispatch
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options - SAVEAREA
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
Notable high level dump format options
SAVEAREA- SAPS (Save Area Prefixes)/saveareas sorted in desc dispatch order
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IBM Corporation, 2010c
Using IPCS with IMS
Invoking the IMS Interactive Dump Formatter, Option 2 (HI-LEVEL)
Notable high level dump format options - SAVEAREA, continued
SAPS (Save Area Prefixes)/saveareas sorted in desc dispatch order
For wait/loop analysis
Enter Command: F ***END - Position to oldest entries
IMS Interactive Dump Formatter - High Level Options - SAVEAREA, Continued
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter - High Level Options - SAVEAREA, Continued
Notable high level dump format options - SAVEAREA, continued
For wait/loop analysis - to find previous ACTIVE SAP:
Enter Command: F ' **** ' PREV;RFIND;F '*SAVE';DOWN 1;RETRIEVE
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter, Low Level Options
IMS Interactive Dump Formatter, Low Level Options
Option 3 (LOW-LEVEL) provides the low-level IMS dump format options
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter, Low Level Options, Continued
IMS Interactive Dump Formatter, Low Level Options, Continued
These are the various low level fmtimsoptions and control parameters available from the Offline Dump Formatter
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter, Low Level Options, Continued
IMS Interactive Dump Formatter, Low Level Options, ContinuedSelecting and item with *P* next to the ARG field, and leaving the ARG value
blank will display the available options
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter, Low Level Options, Continued
IMS Interactive Dump Formatter, Low Level Options, ContinuedTrace menu is displayed after selecting TRACE with a blank ARG
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IBM Corporation, 2010c
Using IPCS with IMS
IMS Interactive Dump Formatter, Low Level Options, Continued
IMS Interactive Dump Formatter, Low Level Options, ContinuedIMS Dispatcher Trace Activity
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IPCS Storage Analysis IPCS Storage Analysis
CommandsCommands
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis
IPCS Storage analysis for ABEND878 or ABEND80A out of storage conditions Enter Command: IP VERBX VSMDATA 'ASIDLIST(dd) SUMMARY'
Where dd = Decimal ASID value
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,Continued
IPCS Storage analysis for ABEND878 or ABEND80A RC10 virtual private storageEnter Command: F 'LOCAL STORAGE MAP'
L O C A L S T O R A G E D A T A S U M M A R Y
LOCAL STORAGE MAP
___________________________
| |80000000 <- TOP OF EXT. PRIVATE
| Extended |
| LSQA/SWA/229/230 |80000000 <- MAX EXT. USER REGION ADDRESS
|___________________________|7CD90000 <- ELSQA BOTTOM
| |
| (Free Extended Storage) |
|___________________________|2BFA9000 <- EXT. USER REGION TOP
| |
| Extended User Region |
|___________________________|21900000 <- EXT. USER REGION START
: :
: Extended Global Storage :
=======================================<- 16M LINE
: Global Storage :
:___________________________: 700000 <- TOP OF PRIVATE
| |
| LSQA/SWA/229/230 | 700000 <- MAX USER REGION ADDRESS
|___________________________| 621000 <- USER REGION TOP**
| |
| |
| |
| |
| User Region |
|___________________________| 6000 <- USER REGION START
: System Storage :
:___________________________: 0
** User Region Top has hit bottom of LSQA
Abend878 RC10
(Out of virtual private)
Example
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,Private Storage Analysis
IPCS Storage analysis for ABEND878 or ABEND80A out of private storage
Go to IPCS BROWSE mode POINTERS panel
Enter Command: STACK nnnnnnnn ASID(X'aa')
Where nnnnnnnn = USER REGION TOP from Local Storage Map
Select the PTR entry for nnnnnnn
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,Private Storage Analysis, Continued
IPCS Storage analysis for ABEND878 or ABEND80A out of private storage
Scan backward (toward zeros) from User Region Top (00621000) to see if you can identify the storage
User Private allocated from the bottom up
Continue scanning backward while attempting to spot a pattern
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,CSA Analysis
IPCS Storage analysis for ABEND878 or ABEND80A RC08 out of CSA storage
Enter Command: IP VERBX VSMDATA 'SUMMARY NOASID'
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,Continued
IPCS Storage analysis for ABEND878 or ABEND80A RC08 out of CSAEnter Command: F 'GLOBAL STORAGE MAP'
GLOBAL STORAGE MAP
___________________________ 80000000 <- TOP OF STORAGE
: :
: Extended Private Storage :
:___________________________:20800000 <- EXT. CSA UPPER BOUND
| |
| Extended CSA |
|___________________________| 90F0000 <- EXT. CSA LOWER BOUND
| |
| Extended PLPA/FLPA/MLPA |
|___________________________| 553F000 <- EXT. SQA UPPER BOUND
| |
| Extended SQA |
|___________________________| 187F000 <- EXT. SQA LOWER BOUND
| |
| Extended Nucleus |
| |
=======================================<- 16M LINE
| Nucleus |
|___________________________| FBD000 <- SQA UPPER BOUND
| |
| SQA |
|___________________________| EBC000 <- SQA LOWER BOUND
| |
| PLPA/FLPA/MLPA |
|___________________________| D10000 <- CSA UPPER BOUND
| |
| CSA |
|___________________________| 900000 <- CSA LOWER BOUND
: Private Storage :
:___________________________:
: System Storage :
:___________________________: 0
Abend878 RC08
(Out of CSA)
Example
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage Analysis,CSA Analysis, Continued
IPCS Storage analysis for ABEND878 or ABEND80A out of CSA storage Enter Command:
IP VERBX VSMDATA 'OWNCOMM DETAIL ALL SORTBY(TIME)' - and/or IP VERBX VSMDATA 'OWNCOMM DETAIL ALL SORTBY(ADDRESS)'
Using Time, Address, Length, Job Name, and Ret Addr - analyze patterns to determine the reason for the storage growth - available if the MVS Common Storage Tracker was set on. See MVS Initialization and Tuning Guide
ASID Job Name Id St T Address Length Ret Addr MM/DD/YYYY HH:MM:SS CAUB GQE
---- -------- -------- -- - -------- -------- -------- ---------- -------- -------- --------
0000 *SYSTEM* ........ Ac S 00904000 00001000 0144237C 07/16/2003 16:54:18 0204F480 16312E68
Data ------> 0000001F 00904080 0000001F 00CE0000 *...... .........*
010D IMS$ JOB07312 Ac S 0091C010 00000018 1D79E426 07/16/2003 16:54:17 13CE85B0 11BAC760
Data ------> 00B5EAE0 20E8E150 000000B0 E77000D2 *...\.Y.&....X..K*
010D IMS$ JOB07312 Ac S 0091C040 00000018 1D79E426 07/16/2003 16:54:15 12043B98 0F3BF220
Data ------> 009BC0A0 20F76490 000000B0 E770010D *..{..7......X...*
010D IMS$ JOB07312 Ac S 0091C058 00000018 1D79E426 07/16/2003 16:54:10 13AB93B8 0FC12B38
Data ------> 00B7F5A0 20DD6120 000000B0 E77000B4 *..5.../.....X...*
010D IMS$ JOB07312 Ac S 0091C070 00000018 1D79E426 07/16/2003 16:53:58 12043E20 0D7689B8
Data ------> 00B6E220 18F3DEB8 00001148 E77001A9 *..S..3......X..z*
010D IMS$ JOB07312 Ac S 0091C088 00000018 1D79E426 07/16/2003 16:53:55 12043B98 14165448
Data ------> 0095B658 20F769C0 000000B0 E770010D *.n...7.{....X...*
010D IMS$ JOB07312 Ac S 0091C700 00000018 1D79E426 07/16/2003 16:53:47 1D6EF370 0FE20B20
Data ------> 00B9E7F8 20DE2400 000000B0 E77005EC *..X8........X...*
010D IMS$ JOB07312 Ac S 0091C718 00000018 1D79E426 07/16/2003 16:53:38 13CE86D0 12F9F790
Data ------> 0091C748 20C829F0 000000B0 E77000FC *.jG..H.0....X...*
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IBM Corporation, 2010c
Using IPCS with IMS
IPCS Storage analysis for ABEND878 or ABEND80A out of CSA storage
Go to IPCS BROWSE mode to examine the storage for eyecatchers, etc
Suspicious addresses x'00901000'
Note "AW" eyecatcher
IPCS Storage Analysis,CSA Analysis, Continued
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Miscellaneous IPCS Miscellaneous IPCS
CommandsCommands
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IBM Corporation, 2010c
Using IPCS with IMS
Miscellaneous IPCS Commands
Miscellaneous IPCS commands useful for IMS dump analysis
CBF aaaaaaaa STR(ctlblkname)
Format MVS Control Block aaaaaaaa
GTFTRACE USR(F65)
GETMAIN/FREEMAIN DS Format
LIST aaaaaaaa.:eeeeeeee. STRUCTURE
List storage with offsets
LIST aaaaaaaa.: bbbbbbbb. DISPLAY
Show Machine storage key
LIST aaaaaaaa.:bbbbbbbb. INSTR
Show instructions/opcodes in the requested storage range
SELECT ASID(X'aa') -or- JOBNAME(j) -or- ALL
Shows JOBNAMEs or ASIDs, respectively
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IBM Corporation, 2010c
Using IPCS with IMS
Miscellaneous IPCS Commands
Miscellaneous IPCS Commands useful for IMS dumps
SSIDATA
Subsystem SSCVT list for all MVS defined subsystems
SUMMARY FORMAT ASID(X'aa') -or- JOBNAME(j)
MVS address space formatting - ASCB, TCBs, CDEs, RBs (in chronological order), RTM2WAs, etc
SUMMARY REGS
MVS abbreviated address space formatting - no CDEs , RBs are in
reverse chronological order for a given TCB
SYSTRACE TIME(LOCAL) or TIME(GMT)
MVS System Trace Table with formatted timestamp for local time or Greenwich Mean Time
VERBX SUMDUMP
RTM2WA control block addresses provided
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IBM Corporation, 2010c
Using IPCS with IMS
Using IMS with IPCS summary
IMS Dumps and IPCS
SVC dumps, SYSMDUMPs, Stand-alone dumps
Controlling IPCS for Easier Dump Analysis
Splitting, sending output to a dataset, IPCS BROWSE formatting
Verifying Dump Contents
Understanding the dump you are about to diagnose
Address spaces, storage options, dump complete bits, reason for the dump
IMS Formatting of Unformatted Machine-readable Dumps
IMS Offline Dump Formatter
Using IMS With IPCS Summary
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IBM Corporation, 2010c
Using IPCS with IMS
Using IMS with IPCS summary, continued
IMS Interactive Dump Formatter
ISPF dialog driven IMS dump formatter
Initialization, high level formatting, low level formatting
IPCS Storage Analysis Commands
VERBX VSMDATA Private and CSA analysis
Miscellaneous IPCS Commands
Memory joggers for useful dump analysis commands
Using IMS With IPCS Summary,
Continued