finding those needles in the haystacks with netview for z/os v6 · 2012-03-12 · finding those...
TRANSCRIPT
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Finding Those Needles in the Haystacks with NetView for z/OS V6.1
Larry GreenIBM
March 12, 2012Session 10716
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Session 10716
Related Sessions
• Thursday, March 15, 9:30, Session 10713• “Problem Solving with Consolidated Logs” (Larry Green (IBM))
• Thursday, March 15, 1:30, Session 10833• “Intelligent Load Balancing with IBM MultiSite Workload Lifeline” (Mike
Fitzpatrick (IBM))
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
Timeline
• NetView for z/OS V6.1• Generally available: May 27, 2011
• NetView for z/OS V5.1 and V5.2• End of Support announced: February 1, 2011• Effective: March 31, 2012
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
Smart Packet Collection
• Analyze packet trace data to allow for easier problem determination
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Session 10716
Getting Started
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Session 10716
Select what to collect
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Session 10716
Set filter options
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Session 10716
List of packets meeting filter criteria
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Session 10716
Packet detail
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Session 10716
Back to summary listing
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Session 10716
Session Report
New
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Session 10716
Summary analysis for that session
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Session 10716
Individual packets for the session
delayed ack
duplicate ack
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Session 10716
Go to packet details
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Session 10716
Packet Details
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Session 10716
Back to Summary Analysis
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Session 10716
Session Report
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Session Report (cont.)
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Session 10716
Summary Analysis for that session
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Session 10716
Commands Available for this Session
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Session 10716
Save Session Packets
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Session 10716
Save Session Packets
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Session 10716
Save Session Packets
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Session 10716
Save Session Packets
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Session 10716
Recall Saved Traces
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Session 10716
Recall Saved Traces
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Session 10716
Trace Summary
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Session 10716
Recall Saved Traces
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Session 10716
Details About the Trace
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Session 10716
Trace Summary
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Session 10716
Returning to Trace Filter Screen
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Session 10716
Choose sessions to analyze
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Session 10716
Select a session to examine
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Session 10716
Summary analysis of selected session
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Session 10716
Choose sessions to analyze – UDP
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Session 10716
Choose sessions to analyze – ICMP
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Session 10716
Scenario: Analyze a Specific TCP Session
The problemA performance problem is reported against an FTP application
ActionsThe system programmer runs a packet trace against the application.He examines the summary packets list in IPTRACE.He sees a series of outbound packets, but no inbound packets for this application for a single host.The system programmer selects a packet and uses Trace Session Report (command option 7) to analyze the session.He sees that there is a large number of retransmissions on the outbound side, indicating a problem with the remote host.
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
Packet trace on the flyWhy?
– When monitoring a connection, you may find you need to trace the packets flowing on that connection.
How?– IPSTAT function
• Connection management and debugging capabilities for all connections through a given stack.
• NEW → You can start the IPTRACE function from the IPSTAT screens. This means you can start the packet trace from an IP connection you’ve already selected.
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Session 10716
Packet trace on the fly
Packet trace initially inactive
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Session 10716
Start Connection Monitoring (IPSTAT)
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Session 10716
Select host and connections
Host nameAsterisk to view status of all connections.Select host.Press ENTER.
*
x
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Session 10716
Active connections
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Session 10716
List of active connections
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Session 10716
Available commands
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Session 10716
Control selections for packet trace
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Session 10716
List of packets
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Session 10716
Trace components started on the fly
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Session 10716
Display packet control
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Session 10716
Stop trace?
Y = stop the traceN = leave the trace running, so you
can monitor the packets that are collected
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Session 10716
Choose another connection or exit
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
Browsing Logs Prior to NetView V6.1
NetlogNetViewconsole Syslog
Systemconsole
Joblogs ISPF
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Session 10716
Log Browse with NetView V6.1Netlog
NetViewconsole
Syslog
Joblogs
Consolidatedlog
CANZLOG
CANZLOG = Consolidated Audit, NetView and z/OS Log
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Session 10716
Highlights• Existing netlog and all its UIs are preserved unchanged• New, shared data space to capture messages
• Includes normal NetView messages• Provides basis for browsing• All messages are available to automation
• Browse consolidated log• Filter by any message attribute or combination: msgID, jobname, route code,
etc.• Define your own message attributes• Define and save sets of filter criteria, per operator or installation-wide
• Seamless archiving• Export to Service
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Session 10716
Some Message Attributes• All messages
• Tags: 8 user-defined tags (set in MRT or Automation Table)• Origin time: store clock value indicating when the message was created• Auto time: how long after the origin this message completed automation• DOM time: how long after the origin this message was matched by a DOM• ACTIONDL: type of DOM (if any) that matched this message
• MVS messages• ASID: Address Space ID• ASTYPE: type of address space issuing the message (started task, TSO user, USS procedure, etc.)• Job name: job name of originating address space• SYSID: system name of originating LPAR• DescCodes: descriptor codes• CHKEY: started task ID or (for batch) jobname• Cons Name: destination console name• Reply ID: for WTORs only, the ID used with the REPLY command• MCSFLAGS: MVS multiple console support flag field
• NetView messages• Domain: 1-to-5-character identifier of NetView instance that generated the message • HDRMTYPE: 1-character value indicating NetView message type• Sender ID: 8-character value indicating NetView OPID of originator of the message
• Customization attributes• UserChar: 16-character field; can be set in various installation exits or by MRT• UserFlag: 16-bit field; can be set in various installation exits or by MRT• AutoToken: 8-character field; can be set in MPF, in MRT, or various installation exits
• And more …
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Session 10716
Robust filtering• Any message attribute or combination
• “What happened over the weekend?”• “Show me all the IEF123 messages.”• “I need to see all the ABC* and DEF* messages from jobs JOB1 and
JOB2 during first shift last Tuesday with descriptor code 2.”
• Types• Common: available to all operators (subject to authorization check)• Task: available only to the operator who defined them
• Actions• Save: save filter to storage and on disk• Replace: replace an existing filter in storage and on disk• Delete: delete filter from storage and disk
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Session 10716
Canzlog displayTime covered by
records displayed on this page
Filters
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Session 10716
Related Session
• Session 10713• “Problem Solving with Consolidated Logs” (Larry Green (IBM))• Thursday, March 15, 9:30
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
MultiSystem Manager updates
• MultiSystem Manager Tivoli Management Regions (TMR) agent is retired.
• MultiSystem Manager IP agent is retired.• NetView for Unix/Windows replaced by IBM Tivoli Network
Manager• MultiSystem Manager IBM Tivoli Network Manager (ITNM)
agent is updated.
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Session 10716
Views in ITNM
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Session 10716
Views in NMC
71
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Session 10716
System Details Views
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Session 10716
Display Resource Details
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Session 10716
NMC Display Details
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Session 10716
MSM Agents
z/OSNetView
z/OS1. NetView discovers IP, sysplex and
system resources
TCP/IP
Discovery Library Adapter (DLA)
RODM
GMFHS
MSMDiscoveryManager
system
sysplex
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Session 10716
MSM Agents
z/OS
RODM
GMFHS
NetView
z/OS
2. Discovered resources are stored in RODM
TCP/IP
system
sysplex
RODM
GMFHS
MSMDiscoveryManager
NetView
Discovery Library Adapter (DLA)
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Session 10716
NetView
system
sysplex
RODM
GMFHS
MSMDiscoveryManager
MSM Agent
z/OS
z/OS
NetView Discovery
Library Adapter
3. DLA extracts resource & relationship data from RODM, formats & transports it to CMDB
TCP/IP
CMDB
TADDM
Discovery Library Adapter (DLA)
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Session 10716
NetView
system
sysplex
RODM
GMFHS
MSMDiscoveryManager
MSM Agents
z/OS
z/OS
NetView Discovery
Library Adapter
TCP/IP
CMDB
TADDM
NEW to DLA:• Sysplex, system info• IP resource data from ITNM
Discovery Library Adapter (DLA)TBSM
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
Serviceability
• Trace changes in global variable values• Results in a message written to netlog, with variable’s name, value,
and info about what program changed it• Message available for automation• GLOBALV command
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Session 10716
Agenda
• Timeline• Smart Packet Collection• Packet Trace on the fly• Expanded Log Browse• NetView Web Application• Enterprise Integration• Serviceability• GDPS Active/Active
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Session 10716
GDPS Active/Active Continuous Availability solution
• Environment• Two or more sites, separated by unlimited distances, running
the same applications and having the same data to provide cross-site workload balancing and Continuous Availability / Disaster Recovery
• Paradigm shift• Failover model → near continuous availability model
• Significantly increases site / system / workload resiliency• Granularity down to the workload level• Reduces time to recovery in disaster situations
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Session 10716
Site 2:Application A standby
Example: Initial Setup
IMSDB2
CD1SOURCECD1TABLE
IMSDB2
CD1SOURCECD1TABLE
Workload Distributor
Transactions
replication
Controller
Site 1:Application A active
data data
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Session 10716
Site 2:Application A standby
Example (cont.): “Active” Application Fails
IMSDB2
CD1SOURCECD1TABLE
IMSDB2
CD1SOURCECD1TABLE
Workload Distributor
Transactions
replication
Controller
Site 1:Application A fails
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Session 10716
Site 2 Application A active
Example (cont.): “Standby” Application Becomes “Active”
IMSDB2
CD1SOURCECD1TABLE
IMSDB2
CD1SOURCECD1TABLE
Workload Distributor
Transactions
replication
Controllerqueued
data
Site 1:Application A inactive
• Automatic workload switchover
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Session 10716
GDPS Active/Active Continuous Availability solution
• Participating products• GDPS• NetView for z/OS• System Automation for z/OS• DB2• InfoSphere DB2 Replication Server• IMS• InfoSphere IMS Replication for z/OS• Multi-Site Workload Lifeline Advisor
• NetView monitors• Workload status• Workload servers• Workload replication• Load balancers• Other managed elements• Associations among them
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Session 10716
Workload Servers Summary
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Session 10716
Related Session on GDPS Active/Active
• Session 10833• “Intelligent Load Balancing with IBM Multi-Site Workload Lifeline”
(Mike Fitzpatrick (IBM))• Thursday, March 15, 1:30
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Session 10716
Questions?
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Session 10716
More Information
• NetView websitehttp://www.ibm.com/software/tivoli/products/netview-zos/
• NetView customer forumhttp://tech.groups.yahoo.com/group/NetView/
• NetView wikihttps://www.ibm.com/developerworks/wikis/display/tivolidoccentral/Ti
voli+NetView+for+zOS• NetView media gallery
http://www.ibm.com/developerworks/wikis/display/tivolimediagallery/Tivoli+NetView+for+zOS
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Session 10716
Thank you!