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1486 Quayle

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Migrating to a Virtual VAX: An Introduction …

Migrating to a Virtual VAX: An Introduction
Presented at HP Technology Forum 2006

Published in: Technology, News & Politics
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  • 1. HP Technology Forum 2006 M igrating to a Virtual VAX: An Introduction Stanley F. Quayle President, Quayle Consulting Inc. GET CONNECTED People. Training. Technology. © 2006 Hew lett-Packard Developm Com ent pany, L.P. The information contained herein is subject to change without notice
  • 2. Session Goals • Understand virtualization • Learn about issues raised by virtualization • Experience migration with: −M agnetic tape − Disk − DECnet − OpenVM Cluster S − CD-ROM − FTP 3 July 14, 2006
  • 3. Required Experience •Working knowledge of HP OpenVM system S administration • If you brought your application, experience in your application 4 July 14, 2006
  • 4. Can It Be Ported? • Do you have the design documentation? • Do you have all the source code? − W about DECm hat igrate (OMSVA)? − VAX SCAN, Dibol, LISP, OPS5, RPG • Operating system dependency? • Hardware dependency? • Target platform − Can your code re ally be reused? − W about stability? hat • Can you validate the result? 5 July 14, 2006
  • 5. W Virtualize? hy • Smaller boxes • Use modern hardware • Use corporate SAN • Reduce pow consum er ption • Reduce hardware maintenance costs •“ Encapsulate”applications 6 July 14, 2006
  • 6. Virtualization Overview Application Application Layered softw are Layered softw are System libraries System libraries Operating System Operating System CHARN-VAX r VAX Emulato VAX Ho s t OS Host OS Hardware Ho s t CPU(s ) CPU(s) 7 July 14, 2006
  • 7. VAX Emulator SCSI VAX disk Memory Ethernet SCSI VAX tape Disk controller VAX CPU Host system disk Emulator Tape controller Serial ports Virtual disk System bus interface Tape image VAX VTxxx VT Console Terminal, etc 8 July 14, 2006
  • 8. Virtualize to What? • SIMH − Open source (“ ) free” − Support mailing list − Runs on alm any platform ost • CHARON-VAX − Com ercial product m − Support available from VARs − Current platform Alpha OpenVM W s: S, indows − QNX for Q-bus em bedded solutions − Future platform include Linux s 9 July 14, 2006
  • 9. OpenVM Licensing S • HP will transfer existing licenses to CHARON-VAX http://h71000.w w w 7.hp.com/openvms/sri-charon-vax-emulator.html − $ 2,000 total for Intel platform − $ 1,000 total for Alpha platform • Newlicenses must be purchased for other virtual solutions 10 July 14, 2006
  • 10. Oracle Licensing • Oracle will transfer existing Rdb and CODASYL licenses to CHARON-VAX w w w .oracle.com/technology/products/rdb/htdocs/rdb7/charon_vax.html − “ m cases, Oracle license and service agreem In ost ents are transferred to the sam num of CHARON-VAX e ber processors at no charge.” • Newlicenses must be purchased for other virtual solutions 11 July 14, 2006
  • 11. MultiNet & TCPw Licensing are • Process Software will transfer existing M ultiNet and TCPw licenses to virtual solutions are • Fee depends on emulated system − $ 350 for workgroup-size systems − M for enterprise-size system ore s 12 July 14, 2006
  • 12. Missing In Action • Som softw e are vendors no longer exist • VAX system do s no t have a hardw serial are number • Licensing methods: − LM license PAK F − M address of Ethernet card AC − Hardw values of VAX are • CPU • HW_M ODEL • SID • XCPU 13 July 14, 2006
  • 13. Softw Support are • HP software support (OpenVM layered products) S, is available for CHARON-VAX on HP hardware http://h71000.w w w 7.hp.com/openvms/sri-charon-vax-emulator.html • Oracle Rdb and CODASYL software support available for CHARON-VAX w w w .oracle.com/technology/products/rdb/htdocs/rdb7/charon_vax.html • Other ISV’ support virtual s system less form s ally 14 July 14, 2006
  • 14. Security Concerns • Howto secure your host − Keep host patch-current − Shut dow unnecessary services n − Rem ove unnecessary softw are − Don’connect to the netw t ork • Howto secure your virtual VAX − All the old VAX tools and tricks still apply − HP OpenVM Guide to System Security S 15 July 14, 2006
  • 15. Let’ Get Started! s • You have the following items: − PC − USB dongle − Install CD −A“ bootstrap” S system im VM age • Do no t insert the dongle into the USB port yet! 16 July 14, 2006
  • 16. Softw Installation are • Insert CD • Run hldrv32.exe from directory Hardlock • Nowinsert the dongle • Run setup.exe • From Start ->Settings -> Network, install a new protocol on one interface. Select “ Have Disk”and, brow to sripacket.inf in directory: se C:Program FilesCHARON-VAXDriversNetworkNdis5 • Disable all other protocols on this adapter • Disable the protocol on all other adapters 17 July 14, 2006
  • 17. Softw Configuration are • Create a directory C:DISKS • Copy DISKS*.* from the CD to C:DISKS • Remove the “ read only”property from the files in C:DISKS • Open the configuration file (VAX4106.cfg) in Notepad • Change the network interface nam (near the end e of the file) to the device which is to be used for the em ulated VAX • Save the changes, and exit Notepad 18 July 14, 2006
  • 18. Virtual VAX Startup • From the Start button, select CHARON-VAX, then CHARON-VAX Launcher • Brow to your configuration file se • Run it • A Hyperterminal windoww appear, w ill hich is the VAX console • You nowhave a VAX on your computer! • At the >>> prom type “ DUA0” pt, B/1 19 July 14, 2006
  • 19. Student Configuration S ys te m DECne t IP LAB1 1.101 192.168.1.101 LAB2 1.102 192.168.1.102 LAB3 1.103 192.168.1.103 LAB4 1.104 192.168.1.104 LAB5 1.105 192.168.1.105 LAB6 1.106 192.168.1.106 LAB7 1.107 192.168.1.107 LAB8 ... 1.108 ... 192.168.1.108 ... 20 July 14, 2006
  • 20. Our Source VAX Today •Workgroup-size VAX − VM V5.5-2H4 S − VAXCLUSTER, 1 vote − No SYSTEM passw ord − 1 RZ-29 disk, device nam DKA0 e − 8 m tape drive, device nam M m e KA300 − RRD42 CD drive, device nam M e KA400 • DECnet address 1.500 • TCP/IP address 192.168.1.15 21 July 14, 2006
  • 21. Tape Migration • Tape has the following advantages − Tried-and-true technology − M VAX system have tape backup ost s − Doesn’require a netw adapter on the VAX t ork − Very fam iliar system managem tasks ent • There are disadvantages − Tape is slow − Reliable tapes for older form (9-track, TK-50, etc.) are ats hard to find − Reading the tape on the virtual system requires a SCSI tape drive 22 July 14, 2006
  • 22. Tape Migration –Procedure • On the VAX, do backups of all disks − The system disk requires /IMAGE • Once the backups are done, move the tape drive to the virtual system − The configuration file has to change to use the tape drive • Do an image restore to newcontainer files on the virtual VAX 23 July 14, 2006
  • 23. Disk Migration • Disk has the following advantages − Very fast − Doesn’require a netw adapter on the VAX t ork • There are disadvantages − Only SCSI disks can be migrated this way • DSSI, CI, M disks have no equivalent hardw today FM are − Handling a disk, especially a very old one, can cause it to fail • If there’ an external s disk array, it could be connected to the virtual VAX perm anently − Not highest-performance solution, but migration is almost zero tim and lowrisk e 24 July 14, 2006
  • 24. Disk Migration –Procedure • Shut dow the VAX cleanly n • Connect the disk drives to the virtual system − The configuration file has to change to use the drives • Do a /IMAGE backup from the physical disks to the container files 25 July 14, 2006
  • 25. DECnet Migration • DECnet migration has the follow advantages ing − Pretty fast (faster than tape) − Alm every VAX has DECnet installed ost • Was required up to V6.x − BACKUP can w savesets to DECnet nodes rite • There are disadvantages − Som VAX system don’have a netw adapter e s t ork 26 July 14, 2006
  • 26. DECnet Migration –Procedure • For each physical disk − BAC/IM <p>: <vn>” G system ::<vd>:[000000]A.BCK/save ” • <p> is physical disk nam e • <vn> is virtual system DECnet address • <vd> is virtual system “ scratch”container file • Then, on virtual system −M OUNT/FOREIGN <vt>: − BAC/IM <vd>:[000000]A.BCK/save <vt>: G • <vt> is the virtual disk to which to restore • For multiple disks, these steps can be overlapped if the “ <vd>”container file is big enough 27 July 14, 2006
  • 27. Cluster Migration • Cluster migration has the follow advantages ing − Pretty fast (faster than tape) − All disks to be m igrated appear to be local −M igration can be increm ental, w m ith ixed physical and virtual cluster m bers em • There are disadvantages − Virtual system m be able to join cluster as NI m ber ust em − The cluster m M ust SCP-serve all needed disks − Frequently, no one rem bers the cluster passw em ord 28 July 14, 2006
  • 28. Cluster Migration –Procedure • On the virtual system for each physical disk , −M OUNT/FOREIGN <vt>: − BACKUP/IMAGE <p>: <vt>: • <p> is physical disk nam e • <vt> is the virtual disk to which to restore 29 July 14, 2006
  • 29. CD Migration • CD has the following advantages − Usually faster than tape − CD drives on virtual VAX are lots faster than RRD-series VAX drives • There are disadvantages − Creating ODS-2 CD-ROMs on VM w not generally ’ S as possible until V7.x − CD’ have a lim s ited size (700 M m B ax) • It’ possible to install s VM from scratch using S CONDIST disks 30 July 14, 2006
  • 30. CD Migration –Procedure • If the CD is not in ODS-2 form followFTP at, procedure • Change virtualVAX configuration file to use PC’ s CD drive as a VM CD drive S − Note: W indow m be rebooted if any W s ust indow s-format CD w inserted in drive before starting virtual VAX as • Use COPY or BACKUP to copy files as necessary 31 July 14, 2006
  • 31. FTP Migration • FTP migration has the follow advantages ing − No use of “ DEC proprietary”protocols − Pretty fast − You can FTP files from the host system w , hich is always present • There are disadvantages −M any VAX system do not have a TCP/IP stack s − Som VAX system don’have a netw adapter e s t ork − FTP doesn’preserve VM file characteristics or boot t S blocks 32 July 14, 2006
  • 32. FTP Migration –Procedure • Configure and start FTP Server on virtual VAX • Using FTP, transfer files to appropriate locations on virtual VAX • Be sure to use binary transfers for all but text files • BACKUP savesets require a fix before restore: − http://w w w .stanq.com/reset-backup.txt • Use Info-ZIP w the “ option ith -V” − http://vms.process.com/ftp/vms-freeware/ 33 July 14, 2006
  • 33. Post-Migration Tasks • Before booting the virtual VAX −M ake copies of disks as migrated, just in case − Disconnect from netw to prevent conflicts w ork ith physical VAX • Analyze boot messages − Com plex cases m need a m ay inim boot first to sort um out problem s − Logical nam in SYLOGICALS.COM m es ight be needed for som hard-coded disk references e −M ount com ands m be incorrect in startup files m ay • Re-configure DECnet and TCP/IP 34 July 14, 2006
  • 34. M Post-M ore igration Tasks • Regression-test application(s) completely! • Re-evaluate backup strategy –tape might not be necessary anymore • Is there a tape archive to be converted? • License transfers • Update service contracts • Shut dow VAX and sell n on eBay − Or donate to a local VM Hobbyist S 35 July 14, 2006

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