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Home > AS/400 Tips > iSeries security tips > Automate disaster recovery restores |
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ISERIES SECURITY TIPS Automate disaster recovery restoresRich Loeber 07.25.2006 Rating: -4.47- (out of 5)
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If you fall into this group, then you should consider implementing a LODRUN program to automate your disaster recovery process. LODRUN is an OS/400 command that is normally used just by developers of third-party software as a method of controlling the installation process for their software packages. But, LODRUN can easily be used to automate your recovery restore process as well.
When you run the LODRUN program, the command calls a process that looks for a *PGM object at the beginning of the tape with the unique name of QINSTAPP. Once found, it will transfer this *PGM object into the special QTEMP library and then call it
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, passing along the parameters from the LODRUN command that includes the device name of the tape drive being used.
So, for you to have a controlled restore of your backup tape, all you need to do is create a CL program named QINSTAPP with a single parameter for the tape device name. Then, you can use that CL program to do the controlled restore from the tape onto the new system.
A typical off-site backup tape will contain the following items:
You are probably already familiar with exactly how you do backups for your shop. To use the LODRUN method for an automated restore, all you need to do is create a CL program named QINSTAPP that will restore the objects from the backup tape in the same sequence in which they are recorded on the tape. Some hints:
When you're ready to run the restore, all you'll need to do is mount the tape and issue the LODRUN command. At that point, you custom restore program will take over and give you a quick, complete and controlled restore of your system on your recovery system. If you'd like to see a sample QINSTAPP program, send me an email and I'll send you a shell that I recently created.
If you have specific questions about this topic, email me at rich@kisco.com. All email messages will be answered.
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About the author: Rich Loeber is president of Kisco Information Systems Inc. in Saranac Lake, N.Y. The company is a provider of various security products for the iSeries market.
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