From the NetVault Backup Server, you can monitor the progress of any job through the Job Status page. While it is not necessary to monitor a job’s progress, Quest recommends that you monitor progress when performing a recovery of a NetVault Bare Metal Recovery Client. After the recovery of a Linux NetVault Bare Metal Recovery Client has completed, you must perform a last task to bring it back online. By monitoring the recovery job, you are alerted to the completion of a job and this final task can be performed.
NOTE: This topic offers an example of the use of the Job Status page of the NetVault Backup WebUI for monitoring the progress of a Linux DR recovery operation to finalize the job. The tools made available in this dialog box are not exclusive to the Plug-in Live Client for Linux and complete information about their use can be found in the Quest NetVault Backup Administrator’s Guide. |
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With the recovery job running, click Monitor Job in the Navigation pane. |
IMPORTANT: If you must stop the job, you can also access the Abort command the same way. If you use this command to stop a recovery job, NetVault Backup stops the transfer of data. However, the System Installation for Linux application currently running on the Linux NetVault Bare Metal Recovery Client stalls and its commands, while still accessible are not usable. A full reboot of the Linux NetVault Bare Metal Recovery Client must be performed with the CD inserted in the drive to reactivate the application for use. |
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To complete the recovery process, locally access the Linux NetVault Bare Metal Recovery Client machine, and reboot it by using the Reboot the System command in the System Installation for Linux application — type exit at the maintenance shell prompt, or manually shut down the system. |
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The “hosts” file for the Target is modified: A restore modifies the target NetVault Bare Metal Recovery Client machine’s entry in its “…/etc/hosts” file; for example, after recovery, the host name does not appear along with the IP address and the alias for this client in the “…/etc/hosts” file. The machine is still accessible through its IP address, but for it to be accessible through its host name, this file must be edited to incorporate the appropriate host name information. For information about this “hosts” file and how it should be edited to include the proper host name for the target Linux machine, see the relevant Linux documentation. |
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Perform a restore of the modified files backup (if applicable): With the recovery completed, you can now restore the files backed up in the Plug-in for FileSystem backup described in Recovering a DR image for use with Plug-in Live Client for Linux. This process restores these files to their state before the DR recovery. |
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Change to boot loader application: If running a version of the Linux boot loader utility other than GRUB, after a DR image is recovered on a target Linux Client, the boot loader utility is replaced with the GRUB version of this application. |
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GRUB entries: Storix never assumes that you are reinstalling onto the same physical hardware or restoring to the same storage configuration. Therefore, it is never guaranteed that the previous GRUB entries are valid. The only GRUB entry guaranteed to be valid after restore is the entry created by Storix. |
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Volume labels and Volume UUIDs: For systems that use universal unique identifiers (UUIDs) for booting or mounting, review and edit the “/boot/grub/grub.conf” and “/etc/fstab” with the correct device UUID. For more information, see Updating the UUID information manually. |
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Change in the start-end sector location for a DR restore: After a recovery of a DR image, the start-end sector for a restored partition may be different from its original backed-up location. The partition size remains the same size, but no unallocated space is created after the Master Boot Record. Therefore, some boot loaders, for example, GRUB, are not usable, because they require this additional, unallocated space. This requirement is because the Linux Loader (LILO) version of the boot loader utility that is automatically established after a recovery, as explained previously, does not require this unallocated space. |
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Change to swap partition: During a recovery, the NetVault Bare Metal Recovery for Linux module implicitly modifies the “/etc/fstab” file entry for the swap partition. |
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File-system checking is enabled: A restore modifies the “Maximum mount count” and “Check interval” parameters, which enable file-system checking. For systems that should not have these parameters enabled based on the number of mounts or a specific period, use the following commands to disable the options manually: |
The UUID of each file system is re-created when you use the Plug-in Live Client for Linux to restore data. If the UUID is used in the “/boot/grub/grub.conf” and “/etc/fstab” files and they are restored from a previous backup with the Plug-in for FileSystem, the system fails to boot because the UUID values do not match the values on the actual file systems. To work around this issue, manually update the files.
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Use the Plug-in for FileSystem and a previous backup to restore the “/boot/grub/grub.conf” and “/etc/fstab” files to the working directory. |
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Use a text editor to open the “grub.conf” file. |
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For the entry that contains “root=UUID=x-x-x-x-x”, match the “x-x-x-x-x-x” to the partition name, and then replace the UUID with the partition name. |
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Use a text editor to open the “fstab” file. |
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Using the information noted in Step 3 and Step 4, change the UUID to the device partition name for all mount and swap partitions. |
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To change the device name to its UUID in the “grub.conf” and “fstab” files, run the following command: |
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Use a text editor to open the “grub.conf” and “fstab” files, and verify that the device names were replaced with their corresponding UUIDs. |
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Copy the “grub.conf” and “fstab” files from the working directory to the original location, and re-create the symbolic link from “grub.conf” to “menu.lst”. |
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