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Working with Intelligent Disaster Recovery in Symantec Backup Exec

I want to talk about the features of working with the Intelligent Disaster Recovery component of Symantec Backup Exec. This component provides quick recovery after failures and allows for a timely backup to quickly raise the machine from the state of “clean working hardware” to the “everything works” state.
This article is about working with IDR, the problems encountered and how to solve them, and the pitfalls I know.
Picture to attract attention




How IDR works


Personally, IDR works just boring - a task or backup policy is created for the server you need, an IDR disk image is created for it, tested and put in a safe place.
If necessary, the restoration procedure is carried out:
  • IDR boot
  • Device initialization

  • Select a restore point
  • Connect to data source
  • Recovery

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There is a manual recovery option, it is used in cases when the .dr file containing the backup location information is unavailable. The variant differs from the automatic one in that it is necessary to know on which media the information we need is located, and when recovering, specify the necessary media manually.


After recovery, remove the disk, boot from the disk and get the restored system. Ideally. In reality, however, the following situations diversify:

Changed disk layout
In this case, IDR will not work, you have to do everything by hand. You need to install the OS on the server, install the Backup Exec client and restore the necessary one manually. The server name must be specified the same as it was before the crash.

IDR does not find a device driver or does not see a backup
- we have a backup, but we cannot recover, because the stupid IDR software did not recognize either the controller or the network card. In such cases, Symantec recommends loading the correct driver from the USB flash drive (screenshot below):
Screenshot

The driver must be either from Symantec or from Microsoft (in any case, Symantec support claims so). In the case of the screenshot above, I did not have such drivers (an adapter from Emulex), the system drivers that were known to the science were not identified, I had to find a workaround - I took nLite and added the necessary drivers and fixes to the distribution, which is used when creating the recovery disk - only it all worked.

When restoring IDR is confused in drive letters


This usually happens when you connect a disk on optics, a part of the disks does not go online when connected. It is treated by launching the disk manager and transfer the disks to online manually.

I will also list known pitfalls:



PS I do not understand why this option is called Intelligent disaster recovery. From Intelligent, there is only an automatic selection of media, if there is a .DR file, the rest either by hand or by clicking Next. Correctly it in BE 12 was renamed Simplified DR.

Source: https://habr.com/ru/post/162189/


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