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NetVault Bare Metal Recovery 10.5 - User Guide for Plug-ins

Introducing Dell™ NetVault™ Bare Metal Recovery Plug-ins Deploying NetVault Bare Metal Recovery Using the Plug-in Offline Client Using Plug-in Live Client for Windows® Using Plug-in Live Client for Linux® NetVault Bare Metal Recovery physical-to-virtual recovery Troubleshooting

Finalizing and submitting the job

The final steps include setting additional options on the Schedule, Source Options, and Advanced Options pages, submitting the job, and monitoring the progress through the Job Status and View Logs pages. These pages and options are common to all NetVault Backup Plug-ins. For more information, see the Dell NetVault Backup Administrator’s Guide.
To finalize and submit a restore job:
1
In Job Name, specify a name for the job.
Assign a descriptive name that lets you easily identify the job when monitoring its progress. The job name can contain alphanumeric and non-alphanumeric characters, but it cannot include non-English characters. A maximum of 40 characters is recommended.
2
In the Target Client list, select the NetVault Backup Server as the target for the restore.
 
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TIP: You can also click Choose, and then locate and select the applicable client in the Choose the Target Client dialog box.
3
Leave all other options available on the Schedule, Source Options, and Advanced Options lists at their default settings.
4
Click Save or Save & Submit, whichever is applicable.
You can monitor progress on the Job Status page and view the logs on the View Logs page. For more information, see the Dell NetVault Backup Administrator’s Guide.
The file is recovered to …/tmp directory on the NetVault Backup Server (where … represents the NetVault Backup installation directory).
 
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IMPORTANT: Recovery of the Boot Image information, regardless of the Linux NetVault Bare Metal Recovery Client it was performed from, creates a CD-creation file entitled “linuxboot.iso” in the …/tmp directory. If Boot Image information is recovered from an additional Linux NetVault Bare Metal Recovery Client using these steps, its “linuxboot.iso” file is restored and overwrites any file of the same name in this directory without warning. Therefore, Dell recommends that you complete this process for a single Linux NetVault Bare Metal Recovery Client, before you try to recover backed-up Boot Image information from an additional Linux NetVault Bare Metal Recovery Client.
5
Insert a blank, writable CD into a CD-ROM writer that is accessible to the NetVault Backup Server.
6
Start the CD-generation software, access the “linuxboot.iso” file that resides in the directory named in Step 1, and create the CD using the necessary utilities within the CD-generation software.
 
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NOTE: As CD-generation software varies, no instruction is given here on how to start or administer its use. For complete instructions on generating a CD using an “.iso” CD creation file, see the relevant software’s documentation.
7
With the CD completed, remove it from the drive, and label it appropriately.
For example, assign a label corresponding to something specific about the target NetVault Bare Metal Recovery Client, such as its OS-assigned name.
 
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IMPORTANT: Provided the hardware configuration in the target Linux NetVault Bare Metal Recovery Client does not change, this CD can be saved for future use in booting the client for the recovery of future DR images recorded with this plug-in. However, if new networking hardware is implemented or the device driver files in the client machine change any time, the Boot Image data for the client needs to be backed up again and this procedure needs to be repeated to create a CD.
The Boot CD is unable to load devices for which proper driver files are not incorporated in the Boot Image backup. Dell recommends that you test the boot media on the target Linux NetVault Bare Metal Recovery Client for successful loading of all the devices during boot up process.

Recovering a DR image

The steps required to recover a DR image performed with the Plug-in Live Client for Linux® vary based on how the data was originally managed during backup. The following sections of the document cover the processes required to complete each of these steps.
 
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IMPORTANT: Plug-in Live Client for Linux version 4.0 cannot be used to restore data that was backed up using a previous version of the Plug-in Live Client. To recover pre-4.0 data, you must use the same version of the Plug-in Live Client for Linux that was used to back it up.
The Plug-in Live Client for Linux can only process one restore at a time.
Prerequisites
Before starting a recovery of a Plug-in Live Client for Linux® backup, Dell recommends that you take the following points into consideration.
•
Recovery process adds or modifies various existing files: During the restore process, the following files are added or modified:
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/boot/grub/device.map
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/boot/grub/grub.conf
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/boot/grub/menu.lst
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/boot/grub/stage2
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/etc/hosts
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/etc/fstab
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/etc/modules.conf or /etc/modprobe.conf
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/etc/multipath.conf
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/etc/lilo.conf
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/etc/sysconfig/kernel
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/etc/sysconfig/network
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/etc/sysconfig/network-script/ifcfg-eth* (where * is a numerical value)
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/etc/sysconfig/network-script/ifcfg-eth-id-
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/etc/sysconfig/network-script/ifcfg-lo
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/boot/initrd-storix-device_name.img
To preserve the existing state of these files, the following procedure can be used.
 
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NOTE: This process is not required. It offers a procedure for maintaining the existing state of the named files after a Plug-in Live Client for Linux recovery; that is, the recovery still completes successfully if this procedure is not followed.
1
From the machine acting as the NetVault Backup Server, use the Plug-in for FileSystem to conduct a standard backup of the following files:
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/boot/grub/device.map
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/boot/grub/grub.conf
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/boot/grub/menu.lst
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/boot/grub/stage2
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/etc/hosts
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/etc/fstab
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/etc/modules.conf or /etc/modprob.conf
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/etc/multipath.conf
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/etc/lilo.conf
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/etc/sysconfig/kernel
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/etc/sysconfig/network
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/etc/sysconfig/network-script/ifcfg-eth*
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/etc/sysconfig/network-script/ifcfg-eth-id-
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/etc/sysconfig/network-script/ifcfg-lo
 
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IMPORTANT: You do not have to back up the “/boot/initrd-storix-device_name.img” file. This file should be left alone so that it is correctly modified during the recovery process.
Because the default OS “multipath.conf” file is restored and the existing one is moved to the Storix Temp directory, Dell strongly recommends that you copy the existing one to the /etc directory after the restore process is finished. This process avoids potential issues after the system is restarted.
 
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NOTE: For complete instructions on the use of the Plug-in for FileSystem, see the Dell NetVault Backup Plug-in for FileSystem User’s Guide.
2
Perform the recovery of the Plug-in Live Client for Linux backup as outlined in the sections that follow.
3
Restore the Plug-in for FileSystem backup of these files after the DR recovery has completed.
•
Accommodating for Raw Format Disks on a Target NetVault Bare Metal Recovery Client: The Plug-in Live Client for Linux does not support the backup of Raw format disks. However, the utility used to boot a target NetVault Bare Metal Recovery Client for the recovery initializes these disks even though they were not backed up, and there is potential for data loss. Before initiating a recovery, note the partition structure of the target NetVault Bare Metal Recovery Client and ensure that you follow the steps outlined in Accommodating for Raw disks to preserve any Raw format disks that may exist.
 
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IMPORTANT: When performing a system restore, Storix® SBAdmin creates the partition table starting at sector 1. You can specify the size of the partitions and the number of sectors, but you cannot specify the partition offset.

Restoring data

As noted in the previous section, you must first set up a recovery job for a Linux® NetVault Bare Metal Recovery Client from the NetVault Backup WebUI on the NetVault Backup Server. You must also start this job before you try to boot the Linux NetVault Bare Metal Recovery Client with the created CD.
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Selecting data for a restore
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Setting restore options
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Finalizing and submitting the job
Selecting data for a restore
To select data to restore:
1
In the Navigation pane of the NetVault Backup WebUI on the NetVault Backup Server, click Create Restore Job.
2
On the Create Restore Job — Choose Saveset page, select Plug-in Live Client for Linux from the Plugin Type list.
3
To filter the items displayed in the saveset table further, use the Client, Date, and Job ID lists.
The table displays the saveset name (Job Title and Saveset ID), creation date and time, and size. By default, the list is sorted alphabetically by saveset name.
4
In the saveset table, locate the NetVault Backup Client that was configured as the Linux NetVault Bare Metal Recovery Client in question, and select the applicable backup saveset (identified by its title, which is the name given to the DR image in the Job Name field at the time of backup).
When you select a saveset, the following details are displayed in the Saveset Information area: Job ID, Job Title, server name, client name, plug-in name, saveset date and time, retirement setting, Incremental Backup or not, Archive or not, and saveset size.
5
When the Linux NetVault Bare Metal Recovery Client appears in the tree, select the entire DR image.
Although you can double-click it to reveal its individual contents, all data items must be selected for the restore to work correctly. (The browse functionality is only intended to allow you to view the contents of the backup saveset — not select individual items for the recovery.)
 
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NOTE: If a disk is comprised of four primary partitions, the fourth partition is automatically converted to an extended logical partition during the recovery. Having a fourth primary partition inhibits the ability to add more partitions to the disk later. By converting the fourth partition to a logical one, you can use additional space on a hard disk to create future partitions (for example, in the event that the recovery is being performed to disk that is larger than the original). There is no data loss associated with this behavior. You are alerted to this fact during the boot process in a dialog box of the System Installation for Linux (for details on this process, see Booting the target NetVault Bare Metal Recovery Client with the appropriate OS and drivers).
6
Click Next.

Setting restore options

On the Create Selection Set page, click Edit Plugin Options to reveal the following fields:
•
Client Hostname: This field contains the NetVault Backup Machine Name of the Linux NetVault Bare Metal Recovery Client that was the target of the DR backup.
•
Restore Server Port: This field lets you choose the port for incoming connections on the server. In most cases, the default port of 10666 is available. Follow the procedure under Reconfiguring the communication port (optional) if a different port is required.
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