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1483 Quayle



Getting Started with Alpha Virtualization

Getting Started with Alpha Virtualization
Presented at HP Technology Forum 2006



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1483 Quayle 1483 Quayle Presentation Transcript

  • HP Technology Forum 2006 Getting Started w Alpha ith Virtualization 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
  • 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
  • Required Experience •Working knowledge of HP OpenVM system S administration • If you brought your application, experience in your application 4 July 14, 2006
  • Can It Be Ported? • Do you have the design documentation? • Do you have all the source code? − W about DECm hat igrate? • Operating system dependency? −Middleware? (COM Advanced Server, Rally) , • Hardware dependency? • Target platform − Can your code re ally be reused? − W about stability? hat • Can you validate the result? 5 July 14, 2006
  • W Virtualize? hy • Alpha last order date: October 25, 2006 • Smaller boxes • Use modern hardware • Reduce pow consum er ption • Reduce hardware maintenance costs •“ Encapsulate”applications 6 July 14, 2006
  • Virtualization Overview Application Application Layered softw are Layered softw are System libraries System libraries Operating System Operating System CHARN-Alpha Alpha Emulato r Alpha Ho s t OS Host OS Hardware Ho s t CPU(s ) CPU(s) 7 July 14, 2006
  • Alpha Emulator SCSI disk Memory Ethernet SCSI Tape Disk controller Alpha CPU Host system disk Emulator Tape controller Serial ports Virtual disk System bus interface Tape image System Alpha Console 8 July 14, 2006
  • Virtualize to What? • Open Source −Working on it, but nothing yet • CHARON-AXP − Com ercial product m − Support available from VARs − Current platform 64-bit W : indows 9 July 14, 2006
  • OpenVM Licensing S • HP will transfer existing licenses to CHARON-AXP http://h71000.w w w 7.hp.com/openvms/sri-charon-vax-emulator.html − $ 2,000 total 10 July 14, 2006
  • 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 11 July 14, 2006
  • Missing In Action • Som softw e are vendors no longer exist • Licensing methods: − LM license PAK F − M address of Ethernet card AC − Hardw values of Alpha are • CPU • HW_M ODEL • SID • XCPU 12 July 14, 2006
  • Softw Support are • HP software support (OpenVM layered products) S, is available for CHARON-AXP on HP hardware http://h71000.w w w 7.hp.com/openvms/sri-charon-vax-emulator.html • Oracle software support available for CHARON- AXP w w w .oracle.com/technology/products/rdb/htdocs/rdb7/charon_vax.html • Other ISV’ support virtual s system less form s ally 13 July 14, 2006
  • 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 Alpha − All the old Alpha tools and tricks still apply − HP OpenVM Guide to System Security S 14 July 14, 2006
  • 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! 15 July 14, 2006
  • Softw Installation are • Insert CD • Run install.exe, followprompts 16 July 14, 2006
  • 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 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 Alpha • Save the changes, and exit Notepad 17 July 14, 2006
  • Virtual Alpha Startup • From the Start button, select CHARON-AXP, then CHARON-AXP Launcher • Brow to your configuration file se • Run it • A Hyperterminal windoww appear, w ill hich is the Alpha console • You nowhave a Alpha on your computer! • At the >>> prom type “ DUA0” pt, B/1 18 July 14, 2006
  • Student Configuration S ys te m DECne t IP LAB1 1.101 LAB2 1.102 LAB3 1.103 LAB4 1.104 LAB5 1.105 LAB6 1.106 LAB7 1.107 LAB8 ... 1.108 ... ... 19 July 14, 2006
  • Our Source Alpha Today •Workgroup-size Alpha − VM V7.3-2 S − VM SCLUSTER, 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 1.573 • TCP/IP address 20 July 14, 2006
  • Tape Migration • Tape has the following advantages − Tried-and-true technology − M Alpha system have tape backup ost s − Doesn’require a netw adapter t ork − Very fam iliar system managem tasks ent • There are disadvantages − Tape is slow − Reliable tapes for older form (TK-70, etc.) are hard to ats find − Reading the tape on the virtual system requires a SCSI tape drive 21 July 14, 2006
  • Tape Migration –Procedure • On the Alpha, 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 Alpha 22 July 14, 2006
  • Disk Migration • Disk has the following advantages − Very fast − Doesn’require a netw adapter t ork • There are disadvantages − Only SCSI disks can be migrated this way • DSSI and CI disks have no equivalent hardw today 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 Alpha perm anently − Not highest-performance solution, but migration is almost zero tim and lowrisk e 23 July 14, 2006
  • Disk Migration –Procedure • Shut dow the Alpha 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 24 July 14, 2006
  • DECnet Migration • DECnet migration has the follow advantages ing − Pretty fast (faster than tape) − Alm every Alpha has DECnet installed ost − BACKUP can w savesets to DECnet nodes rite • There are disadvantages − Som Alpha system don’have a netw adapter e s t ork 25 July 14, 2006
  • 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 26 July 14, 2006
  • 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 27 July 14, 2006
  • 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 28 July 14, 2006
  • CD Migration • CD has the following advantages − Usually faster than tape − CD drives on virtual Alpha are lots faster than RRD- series Alpha drives • There are disadvantages − Creating ODS 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 29 July 14, 2006
  • CD Migration –Procedure • If the CD is not in ODS-2 or ODS-5 form follow at, FTP procedure • Change virtualAlpha 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 Alpha as • Use COPY or BACKUP to copy files as necessary 30 July 14, 2006
  • 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 − Som Alpha system do not have a TCP/IP stack e s − Som Alpha system don’have a netw adapter e s t ork − FTP doesn’preserve VM file characteristics or boot t S blocks 31 July 14, 2006
  • FTP Migration –Procedure • Configure and start FTP Server on virtual Alpha • Using FTP, transfer files to appropriate locations on virtual Alpha • 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/ 32 July 14, 2006
  • Post-Migration Tasks • Before booting the virtual Alpha −M ake copies of disks as migrated, just in case − Disconnect from netw to prevent conflicts w ork ith physical Alpha • 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 33 July 14, 2006
  • 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 Alpha and sell n on eBay − Or donate to a local VM Hobbyist S 34 July 14, 2006