Brad McCusker Software Concepts International, LLC Phone...
Transcript of Brad McCusker Software Concepts International, LLC Phone...
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
Brad McCuskerSoftware Concepts International, LLC57 Technology Way, Suite 2W1Nashua, NH 03060, USA
Phone: 603-879-9022
e-mail: [email protected]
www.sciinc.com
Proven results by applying the
best practices in Computer
Systems Management
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Financial Services – can we do it?
� Latest & Greatest as long as nothing changes
� VAX to Alpha with 90% of the pieces
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
Managing OpenVMS systems and databases requiring the highest
levels of performance and availability – worldwide
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
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� Replace aging DS-25 & MSA
� Virtualize the platform
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� DS25 with 1GHz processor
� Concern over emulator performance
� Could we satisfy the extended periods of high CPU?
� In 2010 – told customer low confidence of success
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% CPU Idle Time
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Existing� DS-25, 2P (EV68 1.0GHz), 10GB
� OpenVMS 7.3-2
� MSA 1500, 3 volumes, ~600GB
� Proposed� Dell PowerEdge R630
� 2 - E5-2637 v3 3.5GHz,4C Processors, 128GB
� VMware ESXi 6.0
� Windows 2012
� Digi AnywhereUSB (for CHARON key)
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Boot emulator with temporary VMS
� Network transfer of savesets
� Shut down Alpha
� I hated to bring this one down:
� Reconfigure, reboot emulator
� Overall, uneventful migration
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AXP>show system /noproc
OpenVMS V7.3-2 on node XXXX 16-MAY-2016 12:10:13.08 Uptime 1317 15:15:03
AXP>
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Winsock 10035 error when trying to connect from clients
� Google, etc. indicated firewall problem
� Network team disabled a firewall somewhere
� Problem solved
� BZZT!
� Many days later, same problem, firewall still disabled
� Lots of wasted time chasing phantom firewall issues.
� Ultimately resolved by executing @CNXSVR again
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� CPU:
� Our experience with ProLiants is CHARON/VMWare should be around 2277 VUPs
� Dell: 94% as fast
� Followed DELL guidelines for high performance, simply couldn’t make it faster
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CHARON: Approximate VUPs Rating : 2149.3 (min: 2121.0 max: 2167.0)
DS25: Approximate VUPs Rating : 2542.8 (min: 2538.0 max: 2547.0)
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Initial results: batch jobs runabout 25% slower
� 50-70% CPU, 1500-2000 DIO
� Tuning:SET RMS/BLO=127/BUF=8/SEQ and
SET RMS/BUF=128/IND
SET RMS_SEQFILE_WBH =1
SET RMS_DEFAULT/QUERY_LOCK=DISABLE
�Batch job performance went to 90%
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Alpha: MSA 1500
� 15K SAS drives
� CHARON configured with “raw SCSI” devices
� VMware .vmdk actually
� Started with NetApp SAN
� 1 GB Ethernet, 15K SAS drives
� Next: DellSCv2020 ISCSI 10GbE Dual Controller
� 1GB switches, etc. 10K SAS drives
� NetApp was temporary use only
� Separate project replacing NetApp with Dell
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� I/O with NetApp: Faster than MSA
� I/O with Dell: Slower than the MSA
� Customer was concerned
� Proposed using Windows I/O caching
� Risk: I/Os in Windows cache could be lost
� Customer willing to accept that risk
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
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256 block Random Writes
Container with windows cache DS-25 & MSA VMDK Raw SCSI
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Switch to Windows cache resulted in applications running at 95% of the Alpha
� Acceptable results, customer happy!
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Current procedure:
� Interactively run a procedure
� Walk into the computer room and insert/swap tapes.
� Every day!
� Most tapes kept onsite – Friday tapes sent offsite.
� New process:
� Backup to virtual tape on VMWare guest
� Virtual tape is a windows container file
� Virtual machine gets backed up to local repository
� Copy of the virtual machine is sent to the cloud
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Fully automated, VMS Batch
� No more physical tapes
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Alpha � Integrity
� EVA � 3PAR
� Custom code migration
� Servers hosted/managed by 3rd party with limited modern VMS knowledge
� Move new systems in-house
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� GS1280, 2 partitions (12P/4P)
� EVA5000, dual controller, Business Backup� 168 36GB 18K drives, RAID 0+1
� BASIC, C, COBOL, Datatrieve, DECForms, CMS SNA/LU6.2
� Oracle Rdb/CDD
� IBM MQ Series
� Xentis, AIG UDMS (report generation)
� CA PA(VPA), DC
� Not available IA64: Raxco Control, FaxSr, Eigen Utilities, SuperSqz
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� 2x HP Integrity BL870 servers� 4 x I2 9350 (1.73GHZ/4C), 64GB
� C7000 enclosure
� 3PAR 7200C – 2 nodes
� 24 x 920GB SSD
� Test/Dev: RX2800, 2P I2 9340 (1.66GHz)/4C
� Software: Same as Alpha, except:� NDS/Compufax, Peek/Spy, xxxx?
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� 95% BASIC, rest is C, COBOL, Macro
� TOLAS Run time libraries (owned sources)
� RMS files for data
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Provided loaner IA64 server for intial porting POC
� Configured dev/test in NJ data center� Difficulties with ILO address
� Migrated from loaner� Storage in NJ????
� Customer moved dev/test and 3 PAR to CT data center
� Assist with planning for enclosure switching, 3PAR configuration
� Configured C7000 and blades in CT data center
� HP configured 3PAR� HP ‘expert’ really wasn’t
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Old system, from VMS, � Imitated an EVA based snapshot of disk to be backed
up
� Present snapshot via SSSU CLI to VMS
� VMS Backup to tape used against privately mounted snaps
� New system,� Plan was to Use 3 PAR Virtual Copy from VMS using
the Python-3parclient toolset
� Didn’t work out
� Used SSH to 3PAR to execute 3PAR commands. 3PAR snaps, then used VSM backup on private volumes
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Significant work to emulate current installation while taking advantage new technology
� Different customer team members lacked “big picture” knowledge or view
� SCI provided big picture oversight
� Systems reside in a hosting company’s Data Center
� Some of the network was controlled by the hosting
company
� Hosting personnel’s first HP blade enclosure
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Customer handled all testing
� Didn’t do enough
� “We tested what we thought was important”
� Didn’t test things that were difficult to replicate
� FTP, SFTP, FAX, SNA
� WebsphereMQ
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Copyright 2017
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Delayed due to testing issues.
� SCI engaged to help troubleshoot
� Ultimately successful, couple week late
� SCI retained to provide Managed Services.
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Financial sector customer wishes to upgrade critical production environment to current supported VSI OpenVMS and Oracle Rdb releases
� SCI engaged to perform production system and database upgrades and provide post-upgrade analysis and support
� Engineer forced to do international travel
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Audit 10 months ago identified unsupported database and operating system in production
� Planning for upgrades failed to achieve required priority
� Production upgrade rush schedule� No test/development upgrade (more about this later)
� Limited testing
� No application changes – only VMS and Rdb and related products / options
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Upgrade process tested on CHARON clone of production
� Upgrades and database converts went well
� ‘Smoke tests’ for a few hours
� User test for a day
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Upgraded production system Sunday morning early� Branches open at around 10:00
� Upgrades and installs went well
� Database converts failed due to logical name complexities (process, group and system) from different upgrade account (SYSTEM vs application)� Quick restore of database
� ‘Smoke tests’ for an hour before full production
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Upgraded
� OpenVMS V7.3-1 to V8.4-2L2
� Rdb V7.1-01 to Rdb V7.3-21
� System and database analysis and suggested tuning
� Users report improved performance
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Copyright © 2016
SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.29 September 2017
� Average can further be significantly improved with database tuning
34
Node: ACCPQ (1/1/16) Oracle Rdb V7.3-210 Perf. Monitor 25-JUL-2017 09:49:42.39
Rate: 3.00 Seconds Transaction Duration (Total) Elapsed: 08:52:23.52
Page: 1 of 1 DISK$SBS:[STFEXP.MAE]SBS.RDB;2 Mode: Online
--------------------------------------------------------------------------------
Total transaction count: 58829
Seconds Tx.Count: % #Complete: % #Incomplete: %
0-< 1: 57675 98% 57675 98% 1154 2% <-avg=0.167410 95%=0.20
1-< 2: 462 0% 58137 98% 692 2%
2-< 3: 235 0% 58372 99% 457 1%
3-< 4: 194 0% 58566 99% 263 1%
4-< 5: 79 0% 58645 99% 184 1%
5-< 6: 25 0% 58670 99% 159 1%
6-< 7: 8 0% 58678 99% 151 1%
7-< 8: 15 0% 58693 99% 136 1%
8-< 9: 16 0% 58709 99% 120 1%
9-<10: 1 0% 58710 99% 119 1%
10+++: 119 0% 58829 100% 0 0%
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OLTP STF SBS
Database
AIJ
JCC
LogMinerLoaderRdb Continuous
LogMiner
• Near real time CDC + ETL• OLTP data available for read
access shortly after commit• Change data collected from
live AIJ files – no database access
• Zero / minimal OLTP impact• Offload read-only access to
SQL Server• Via JCC LogMinerLoader
“Mirror” SQL
Server DatabaseAIJ
AIJAIJ
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� Required upgrade to Rdb 73 and VMS 842L2
� Mandatory in order to enable restore of production
databases to test/development environment
� Optional migration to CharonAXP-AXP on VMware to improve performance and reliability
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Software Concepts International, LLC.29 September 2017
� More processing units
� Increase system headroom
� Permit additional jobs to run in parallel
� Does not improve single-job performance; increases
system capacity
� Current system 2 emulated processors
� Charon ES40 Emulator supports 4 processors
� Requires additional CPU licenses
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Software Concepts International, LLC.29 September 2017
� [TCPIP$DHCP]TCPIP$DHCP_RUN.LOG was the busiest file on the system disk
� Full of error messages
� DHCP server is not required nor desired on this system
� The DHCP Server has been disabled
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Software Concepts International, LLC.World Class Managed Services For OpenVMS
Brad
Brad McCusker
www.sciinc.com
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SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� Located in Nashua, NH (USA)
� 30 years in business supporting OpenVMS!
� International reputation as leading provider of
� Managed services for OpenVMS & databases
� OpenVMS performance and consulting services
� Proven global track record
� Actively managing 100s of systems and databases
� At many sites 24x365 since 1995
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SCI, LLC, Nashua, NH USA
Software Concepts International, LLC.World Class Managed Services For OpenVMS
� System and database performance consulting
� VAX/Alpha emulation – CHARON reseller
� Migration consulting
� Specializing in minimal downtime migrations
� Oracle’s worldwide provider of CODASYL DBMS training
41