MQ Infrastructure of Today and Tomorrow


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MQ Infrastructure of Today & Tomorrow: Security & High Availability with MQ 7.1, MQ AMS & MQ FTE

Presentation by Prolifics Practice Director AJ Aronoff.

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MQ Infrastructure of Today and Tomorrow

  1. 1. MQ Infrastructure of Today & Tomorrow Security & High Availability with MQ 7.1, MQ AMS & MQ FTE Author: A.J. Aronoff Connectivity Practice Director Email: Desk: 646-201-4943
  2. 2. Agenda – MQ Infrastructure Universal Connectivity: The Path to the Future MQ File Transfer Edition MQ Security – With MQ AMS MQ 7.1 – the latest MQ Infrastructure features  Including MQ “Security Policies”2
  3. 3. IBM‟s Most Accomplished Software Partner A Long Record Of IBM Honors Technical Innovation Multi Award-winning:  Serviced over 1500 IBM software accounts in the past 8 years; implemented over 300 portals  2012 Outstanding Business Agility Solution Award  Conducted over 60 migrations to WebSphere from other technologies  2012 ICS Award for Best Industry Oriented Social  Prolifics boasts over 400 J2EE, WebSphere, Lotus, Information Business Solution Management, Tivoli, Rational certifications for architecture,  2010 Impact Best BPM Solution Award development, administration, and project management  2010 Lotus Best End-User Solution Award  IBM’s highest technical rating (Level 5)  Highly Accredited - IBM Tivoli “AAA Accredited;” IBM Cloud  2010 Lotus Best Industry Solution Award Certified; Accredited with Ready for Rational; IBM  2009 Rational Solution Award Authorizations for Security, Social Business and ECM; IBM Authorizations for Insurance, Finance, Healthcare & Life  2008 Outstanding SOA Solution Award Sciences, Banking, Energy & Utilities  2008 Overall Technical Excellence Award  Prolifics has worked with internal development teams  2007 Overall Technical Excellence Award multiple times for the development of IBM technologies.  Strategic relationship gains internal access to IBM’s resources,  2007 Impact SOA Process Solution Award labs, and product development teams  2006 Best Portal Solution Lotus Award  2005 5-Star Partner Award demonstrating Prolifics’ cross-brand sales expertise and certifications. One of only 5 partners worldwide to receive the distinction.3
  4. 4. by doing great work with Great Customers Financial Services Healthcare Government Retail & Distribution Utilities Insurance Education4
  5. 5. WebSphere MQ Value: Connectivity to, from & within an Enterprise The path to the future Enterprise  A Universal Message Bus for access to data Regional Office wherever it exists to support your business  Provides a comprehensive range of Messaging capabilities to support your Business requirements for data integration  Managed File Transfer  Messaging integration patterns Sensor e.g. RFID  Reliability and availability QoS Branch  SOA foundation Outlet  Provides appropriate data access and data privacy controls to help Retail meet audit and regulatory requirements Store  WMQ Telemetry is one step in extending the reach of WMQ to a wider world of data relevant to your business  Recent technology demonstration of MQ Pervasive Device Web Messaging using HTML5 WebSockets Refinery continues this progress Petrol Mobile Forecourt Phone5 CSS: F S
  6. 6. IBM Universal Connectivity
  7. 7. IBM Universal Messaging Proven, Flexible, Robust business data delivery from anywhere to everywhere IBM UNIVERSAL MESSAGING Business Sense and Respond Transactions MQ MQ Telemetry Leveraging System z Web applications MQ for z/OS MQ HTTP Bridge Managed File Transfer Real-time Awareness MQ File Transfer Edition MQ Low Latency Messaging Extra Data Protection Cloud Platform-as-a-Service MQ Advanced Message Security MQ Hypervisor Edition7
  8. 8. WMQ Family Roadmap – continual delivery of customer value (4Q/09) (2Q/10) (4Q/10) (2Q/11) () MQ LLM V2.3 MQ LLM V2.4 MQ LLM V2.5 MQ LLM V2.6 MQ LLM V2.x msg store late join self-managing improved perf. (4Q/09) (4Q/10) (2Q/11) () MQ FTE V7.0.2 MQ FTE V7.0.3 MQ FTE V7.0.4 MQ FTE V7.x FTP Bridging end-to-end security C:D Integration (4Q/11 ) (1Q/11) MQ V7.1 with(3Q/09) MQ V7.0.1.4 Multi-version Install,MQ V7.0.1 with Pre-Connect Exit Out-of-the-box security, (3Q/10) Multicast capability,Multi-Instance QMgrs, MQ Telemetry V7.0.1Automatic Client Reconnect, Improved Performance,z/OS Availability, Capacity and z/OS Shared Q enhancementsPerformance improvements (2Q/11) (1Q/10) MQ WebSockets Tech Preview. Security SupportPacs and MQ HVE for RHEL ESX and Wizards IBM Workload Deployer (4Q/10) MQ Advanced Message Security () V7.0.1 MQ AMS V7.x200 201 201 201 9 0 1 2 Early Access Programs8 CSS: F S
  9. 9. MQ FTE  Quick Overview  Directory Monitoring  File to Message - Message to File  FTP & SFTP Bridging agents9
  10. 10. FTP Spaghetti Infrustructure (haphazard growth)X Unreliable transport mechanisms Each link in a chain reduces reliabilityX No central set-up, logging or monitoringX Poor documentation of overall systemX Expensive, one-off solutionsX High maintenance costs (60 – 70% of a company’s IT budget)X Lack of business agility
  11. 11. Ideal File Transfer Infrastructure Automation & Documented, Centralized Standardized Set-up Solutions Reliable Transport Reliable Reliable Transport Transport Event basedCentralized Centralized Monitoring Logging Reliable Reliable Transport Transport Reliable Reliable Transport Transport
  12. 12. MQ FTE allows you to …go from this …to this
  13. 13. MQ FTE 7.0.2 Protocol BridgeSupport for transferring files located on FTP and SFTP servers  The source or destination for a transfer can be an FTP or an SFTP serverFully integrated into graphical, command line and XML scripting interfaces  Just looks like another FTE agent…Enables incremental modernization of (S)FTP-based Legacy solutions  This helps ease migration from a non-managed (FTP or SFTP) network to a managed network based on WebSphere MQ File Transfer Edition. (I.E. less rip & replace).  Ensures reliability of transfers across FTP/SFTP with checkpoint restart  Provides auditability of transfers across FTP/SFTP to central audit log Files exchanged between FTE and FTP/SFTP FTE FTP MQ FTE FTP FTP / SFTP FTE FTP network network FTE FTP Bridging FTP/SFTP Agent Server Protocol FTP Bridge Server Audit Agent information
  14. 14. MQ FTE: Use Case 1: Directory Monitor•Three sub directories with the same names of three destination FTE Agents•When a file with an extension of “doc” is added to one of the sub directories … • The Resource monitor detects the file and • creates a file transfer request for the file where the destination agent has the same name as the sub directory.•Company in Florida is using the above system and planning to scale up further FTE Receiving Agent Resource OfficeA /incoming/monitor Monitor FTE Receiving Agent OfficeB /A /B /C FTE Sending Agent 1.Doc FTE Receiving Agent OfficeC 14
  15. 15. File & Message Broker Hub: Connect Anything to AnythingIntegration with WebSphere Message Broker for File Processing Tight integration between FTE and WebSphere Message Broker Enables ESB capabilities to be applied to file data Ability to parse and transform files and process into messages, files, events, service requests etc Messages Files Files WMQ FTE MQ, FTE, FTP, Network HTTP, SOAP… WebSpher e Message Broker Enrich, Mediate, Transform… 15
  16. 16. WMB FTEInput and FTEOutput nodes Message Broker Execution Group Message Flow FTE Agent FTE FTE FTE Agent Agent Agent FTEInput FTEOutput FTEInput node Build flows that accepts file transfers from the WMQ FTE network FTEOutput node Build flows that are designed to send a file across a WMQ FTE networkWhen WMQ FTE nodes are used in a flow an FTE agent is automatically stated in the Message Broker Execution Group16
  17. 17. File & Message Hub (HTTP and MQ FTE)Web based File Transfers using the Web GatewayWeb-based File Transfer A RESTful API for sending files into and receiving files from a WMQ FTE network Reliable and secure file transfer option for Web users Auditable transfer and large file support Zero-footprint file transfer support without the need to provision and install code Interfaces for embedding into third party and custom user applications WMQ FTE Serve WMQ FTE r Network HTT P/S17
  18. 18. Options for converting data between files & messagesOne file to one message WMQ  One file becomes one message FTEOne file to a group of messages The file can be split WMQ based on: FTE  Size  Binary delimiterOne message to one file  Regular expression WMQ  One message becomes one file FTEA group of messages (or all messages on the queue) to one file  Optionally, a delimiter can be WMQ inserted between each message FTE used to compose the file 18
  19. 19. End-to-end encryption usingWebSphere MQ Advanced Message Security WMQ FTE already supports svrconn WebSphere sndr/rcvr WebSphere transport level encryption FTE channel MQ channels MQ FTE using SSL Agent Queue Queue Agent Manager Manager Data is encrypted before it is sent over a channel and decrypted when it is received  V7.0.3 (when combined with WMQ AMS v7.0.1) allows file svrconn WebSphere sndr/rcvr WebSphere FTE channel MQ channels MQ FTE data to be encrypted at the Agent Queue Queue Agent source system and only Manager Manager decrypted when it reaches the destination system – This helps reduce encryption costs – Data is secure even when at rest on a queue19
  20. 20. Customer Survey: Of the points below:Which point(s) matters most to you? Records complete and detailed audit log of entire file journey  Auditable “What went where, when and to whom” File contents not corrupted or partially transmitted  Reliable Files only appear at destination whole and intact Files content encrypted during transmission  Secure File access authenticated and controlled Eliminates need to manually detect problems and restart transfers  Automated Providing scheduling and triggering for event-driven transfers  Centralized Remote control and monitoring of file progress from anywhere Able to deploy and re-configure file transfers instantaneously from anywhere  Flexible Managing transfers end-to-end across a network – not just between 2 points  Any file size No upper limit on the size of file that can be moved  Integrated With SOA infrastructure: Messaging, ESBs, Governance, B2B and BPM  Cost Provides a consolidated transport for moving both Files and Messages Effective
  21. 21. Securing the Universal Messaging Bus
  22. 22. MQ AMS  Quick Overview  Message Level Protection  WMQ AMS - Key Features  Architecture  Interceptors  Policies22
  23. 23. WebSphere MQ Advanced Message SecurityWhat is it?  New product - WebSphere MQ Advanced Message Security  Replaces WebSphere MQ Extended Security Edition  Component added to WebSphere MQ V7 or V6Enhances MQ security processing  Provides additional security services over and above base QM  Designed to assist with requirements such as PCI DSS complianceApplication ---> Application protection for point-to-point messagingIndustry standard asymmetric cryptography used to protect individual messagesUses Public Key Infrastructure (PKI) to protect MQ messages  Uses digital certificates (X.509) for applicationsNon-invasive No changes required to MQ applicationsSecurity policies used to define the security level required  Administratively controlled policies applied to queues • Command line • Explorer
  24. 24. Message Level ProtectionEnables secure message transfers at application levelAssurance that messages have not been altered in transit When issuing payment information messages, ensure the payment amount does not change before reaching the receiverAssurance that messages originated from the expected source When processing messages, validate the senderAssurance that messages can only be viewed by intended recipient(s When sending confidential information.
  25. 25. WMQ AMS - Key FeaturesSecures sensitive or high-value MQ messagesDetects and removes rogue or unauthorized messages before they are processed by receiving applicationsVerifies that messages are not modified in transit from queue to queueProtects messages not only when they flow across the network but when they are at rest in queuesMessages from existing MQ applications are transparently secured using interceptorsProtects point-to-point messages
  26. 26. WMQ AMS - Key Features (continued)No prereq products Significantly simplified installation and configuration compared to predecessor product Up and running in minutes …Works in conjunction with SSL Can choose to use either or both depending on your requirementsWorks in conjunction with WMQ authorisation model (OAM and SAF)No changes required to WMQ applications Works with local applications and clients, including Java Support for WMQ V6 and V7No changes required to existing object definitionsFine-grained policies to define which queues are protected and how Asymmetric cryptography used to protect individual messagesAdministratively controlled policies Command line MQ Explorer
  27. 27. WMQ + ESE 6 Architecture
  28. 28. WMQ + MQ AMS
  29. 29. Logical Architecture Design – Distributed Platforms
  30. 30. Interceptors
  31. 31. MQ AMS interceptorsMQ AMS functionality is implemented in interceptors. There are no long running processes or daemons (Except in z/OS).Existing MQ applications do not require changes.Three interceptors are provided:1.Server interceptor for local (bindings mode) MQI API & Java applications. Implemented as queue manager API exit.2. MQI API client interceptor for remote (client mode) MQ API applications. MQ AMS interceptor imbedded in MQ client code.3. Java client interceptor for remote (client mode) MQ JMS and MQ classes for java applications (J2EE and J2SE). MQ AMS interceptor imbedded in MQ java client code. MQ V7.0 java client required. SupportPac MQC7 WebSphere MQ V7.0 clients.
  32. 32. Protecting files transferred with WMQ FTE AMS plugs in on top of / alongside WebSphere MQ File Tranfer Edition, enable file data to be encrypted in transit through the MQ network Apply AMS protection to your WMQ FTE agent data queue its that simple!
  33. 33. Instantly familiar UI and command line: no new tools to learn!
  34. 34. Message protection policiesCreated or updated or removed by command ‘setmqspl’Or by MQ AMS plug-in for MQ Explorer (GUI).Policies are stored in queue ‘SYSTEM.PROTECTION.POLICY.QUEUE’.Each protected queue can have only one policy.Two types of policies: Message Integrity policy. Message Privacy policy.Display policies with command ‘dspmqspl’.
  35. 35. Message integrity policy example  setmqspl -m QMThis policy is to enforce integrity protection (signature) for  -p Q.INTEGRITY messages put on queue Q.INTEGRITY in queue manager  -s SHA1 QM.The message signing algorithm is  -e NONE SHA1.Messages can only by signed by  -CN=pdmqss,O=tivoli,C=US one authorized application.Messages signed by any other signer are sent to the SYSTEM.PROTECTION.ERROR.QUE UE and error returned to the receiving application.
  36. 36. Message privacy policy  setmqsplEncryption algorithms: RC2, DES,  -m <queue_manager> 3DES, AES128 and AES256.  -p <protected_queue_name>Message privacy requires that  -s <SHA1 | MD5> encrypted messages are also  -e <encryption algorithm> signed.  -a <Authorized signer DN1>The list of authorized signers is  -a <Authorized signer DN2> optional.  -r < Message recipient DN1>It is mandatory to specify at  -r < Message recipient DN2> least one recipient
  37. 37. Message privacy policy example  Setmqspl -m QMThis policy enforces privacy  -p Q.PRIVACY protection (signature and  -s SHA1 encryption) for messages put on  -e AES128 queue Q.PRIVACY in queue  -r ‘-CN=pmqdss,O=tivoli,C=US manager QM.  -r ‘-CN=VicenteThe message signing algorithm is Suarez,OU=ISSW,O=IBM,L=Hursle SHA1. y,C=GBThe message encryption algorithm is AES128.Two message recipients are listed using their certificates DN.Messages retrieved by unauthorized recipients cause messages to be sent to the SYSTEM.PROTECTION.ERROR.QUE UE.
  38. 38. WebSphere MQ AMS : Integrity Message Format
  39. 39. WebSphere MQ AMS 1.Install AMS Interceptor 2.Create public / private key pairs 3.Copy public key
  40. 40. AMS SummaryWebSphere MQ Advanced Message Security V7.0.1 It is a new member of the WebSphere MQ family. It is a replacement for MQ ESE V6.0 It protects message integrity and/or privacy. It supports MQ V6 and V7. It does not support Pub/Sub. Existing MQ applications do not require changes. MQ AMS uses interceptors, policies, keystores and certificates.
  41. 41. MQ in the cloudMQ Cloud Support: HyperVisor Editions HVE is pre-packaged image of MQ with an operating system  For easy configuration deployment into virtualised environments First release included MQ V7.0.1.4 and Red Hat Enterprise Linux x86 64- bit OS Also now available with an AIX flavour Pre-defined patterns for IBM WebSphere Workload Deployer configure deploy HVE Config Pattern CSS: F S
  42. 42. WebSphere MQ V7.1: Feature Summary WebSphere MQ V7.1 Announced: 4 October 2011New Feature Benefits Availability: 11 November 2011 DetailsMulti-Version Install Unix and Windows support for multiple versions of MQ V7.x (AND Makes it easier to deploy and upgrade one copy of MQ V7.0.1) down to fixpack levels.capability on Distributed systems and stage version to version Relocatable installation support.platforms migration Applications can connect to any Qmgr IP address Authorisation capability Simplified Configuration Additional crypto algorithmsEnhanced Security More granular authorisation for non-local queues Enhanced Authorisation and Auditing Application Activity ReportsCloud Support Simplifies and support Cloud deployments Additional HVE images Authorisation on Cluster Q rather than XMIT Q on Dist. PlatformsEnhanced Clustering Improves ease-of-use Bind-on-Group Support MQ Pub/Sub Topic space can now map to multicast Group New messaging QoS provides low latencyMulticast capability with high fan-out capability Addresses Provides direct interoperability with MQ LLM Further exploitation of z196 Code contention reduced to improve multi-processor linear scalingImproved scalability and Use of MQ Datasets rather than DB2 significantly improves “large”availability on z/OS Customer control over CF storage use message capability CF Connectivity Loss improvements Structure rebuild capability for CF Connectivity Loss scenariosImproved Performance on Improved multiprocessor exploitation Various code improvementsDist platforms42 CSS: F S
  43. 43. Scalability & Performance – Distributed platforms  Performance measured and improved for a range of scenarios  Hardware capabilities have evolved over years to have more CPUs, more memory etc  MQ topologies have evolved to have more clients and larger/fewer queue managers  “Fastest MQ ever”: better performance than V6 and V7  Multicast faster than traditional non-persistent  Over 5x for one-many publications  Performance reports to be released on availability CSS: F SCSS: F S
  44. 44. Channel Access Blocking Points Access Control Lists Channel blocking and mapping Listener blocking IP Firewall CSS: F
  45. 45. Blocking at the Listener Single list of IP address patterns NOT A REPLACEMENT FOR AN IP FIREWALL  Temporary blocking  Blocking until IP firewall updated  Shouldn‟t be many entries in the list Blocked before any data read from the socket  i.e. before SSL Handshake  Before channel name or userid is known Avoiding DoS attack  Really the place of the IP firewall  Simplistic „hold‟ of inbound connection to avoid reconnect busy loop Network Pingers if blocked don‟t raise an alert  Immediate close of socket with no data not considered a threat SET CHLAUTH(*) TYPE(BLOCKADDR) ADDRLIST(‘9.20.*’, ‘’) CSS: F
  46. 46. Channel Access Policy (1) SET CHLAUTH(*) TYPE(ADDRESSMAP) ADDRESS(‘*’) USERSRC(NOACCESS) “We must make sure our system is completely locked down” CSS: F
  47. 47. Channel Access Policy (2) SET CHLAUTH(*) TYPE(ADDRESSMAP) ADDRESS(‘*’) USERSRC(NOACCESS) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Shetland’) MCAUSER(BANK123) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Orkney’) MCAUSER(BANK456) “Our Business Partners must all connect using SSL, so we will map their access from the certificate DNs” CSS: F
  48. 48. Channel Access Policy (3) SET CHLAUTH(*) TYPE(ADDRESSMAP) ADDRESS(‘*’) USERSRC(NOACCESS) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Shetland’) MCAUSER(BANK123) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Orkney’) MCAUSER(BANK456) SET CHLAUTH(SYSTEM.ADMIN.SVRCONN) TYPE(ADDRESSMAP) ADDRESS(‘9.20.1-30.*’) MCAUSER(ADMUSER) “Our Administrators connect in using MQ Explorer, but don’t use SSL. We will map their access by IP Address” CSS: F
  49. 49. Channel Access Policy (4) SET CHLAUTH(*) TYPE(ADDRESSMAP) ADDRESS(‘*’) USERSRC(NOACCESS) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Shetland’) MCAUSER(BANK123) SET CHLAUTH(BPCHL.*) TYPE(SSLPEERMAP) SSLPEER(‘O=Bank of Orkney’) MCAUSER(BANK456) SET CHLAUTH(SYSTEM.ADMIN.SVRCONN) TYPE(ADDRESSMAP) ADDRESS(‘9.20.1-30.*’) MCAUSER(ADMUSER) SET CHLAUTH(TO.CLUS.*) TYPE(QMGRMAP) QMNAME(CLUSQM*) MCAUSER(CLUSUSR) ADDRESS(‘9.30.*’) “Our internal cluster doesn’t use SSL, but we must ensure only the correct queue managers can connect into the cluster” CSS: F
  50. 50. MQ High Availability: Multi-instance Queue Managers 1. Normal MQ MQ Execution Client Client network Machine A Machine B QM1 QM1 Active can fail-over Standby instance instance QM1 networked storage Owns the queue manager data
  51. 51. Multi-instance Queue Managers 2. Disaster MQ MQ Strikes Client Client networkConnectionsbroken fromclients Machine A Machine B QM1 QM1 Active locks freed Standby instance instance QM1 networked storage
  52. 52. Multi-instance Queue Managers 3. Standby MQ MQ ConnectionsComes to Life Client Client still broken network Machine B QM1 Active instance QM1 networked storage Owns the queue manager data
  53. 53. Multi-instance Queue Managers4. Recovery MQ MQ Complete Client Client Clients reconnected. Processing continues. network Machine B QM1 Active instance QM1 networked storage Owns the queue manager data
  54. 54. Multi-instance queue managers: How it looks As a graphical example, SupportPac MS0P V7.0.1
  55. 55. Multi-instance queue managers: How it looks Enhanced dspmq New option for dspmq to output English-only text  Useful for programmable parsing$ hostnamerockall$ dspmq -xQMNAME(V7) STATUS(Running) INSTANCE(rockall) MODE(Active)QMNAME(V7B) STATUS(Running) INSTANCE(rockall) MODE(Active)QMNAME(V7C) STATUS(Running as standby) INSTANCE(llareggub) MODE(Active) INSTANCE(rockall) MODE(Standby)
  56. 56. Message Broker H.A. using MQ 7.0.1 multi instance queue managers  Message Broker exploits MQ 7.0.1 multi-instance queue manager capability  Active and stand-by queue managers  Start multiple instances of a queue manager on different machines  One is “active” instance; other is “standby” instance  Shared data is held in shared networked storage but owned by active instance  Exploitation by Message Broker  If standby instance of the queue manager becomes active, then the newly active MQ instance will start message broker once MQ recovery is complete
  57. 57. Automatic Client Reconnection Client library provides necessary reconnection logic on detection of a failure Hides failure from application code QM1 Application QM2 MQ Client QM3
  58. 58. Automatic Client Reconnection Tries to hide queue manager failures by restoring current state automatically  For example, if MQPUT returns error, client reruns MQCONN/MQOPEN/MQPUT internally Uses the list of addresses in CONNAME to find queue manager  MQSERVER environment variable also understands list  MQSERVER=SYSTEM.DEF.SVRCONN/TCP/host1(1414),host2(1414) Can reconnect to the same or different Queue Manager Re-opens queues and other qmgr objects, re-establishes subscriptions Reconnection interval is backed off exponentially on each unsuccessful retry  Total timeout is configurable – default 30 minutes.
  59. 59. Automatic Client Reconnection: Details Enabled in application code or ini file  Event Handler callback shows reconnection is happening if app cares  Good For Debugging  If callback occurs may decide on special handling for following 3 cases. 1. Not all MQI is seamless, but majority repaired transparently • eg a browse cursor would revert to the top of the queue, non-persistent messages will have been lost during restart, non-durable subscriptions may miss some messages, in-flight transactions backed out, hObj values maintained 2. Some MQI options will fail if you have reconnection enabled • Using MQGMO_LOGICAL_ORDER, MQGET gives MQRC_RECONNECT_INCOMPATIBLE 3. Tries to keep dynamic queues with same name • So replies may not be missed Initially just in MQI and JMS – not the other OO classes  Requires both client and server to be V7.0.1 level with SHARECNV>0  Server can be z/OS
  60. 60. Resources IBM Page:   Getting Started • Blogs:  Twitter  Support Pacs  http://www-