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Rapid Recovery 6.0.2 - User Guide

*** Legend Introduction to Dell Data Protection | Rapid Recovery Understanding the Rapid Recovery Core Console Working with repositories Managing Rapid Recovery Core settings Using custom groups Working with encryption keys Protecting machines using the Rapid Recovery Core Working with Microsoft Exchange and SQL Servers Protecting server clusters Exporting protected data to virtual machines Managing protected machines Understanding replication Managing events Generating and viewing reports Restoring data Understanding bare metal restore for Windows machines Retention and archiving Managing cloud accounts Working with Linux machines Understanding the Local Mount Utility Central Management Console Understanding the Rapid Recovery Command Line Management utility Understanding the Rapid Recovery PowerShell module
Prerequisites for using PowerShell Working with commands and cmdlets Rapid Recovery PowerShell module cmdlets Localization Qualifiers
Extending Rapid Recovery jobs using scripting Rapid Recovery APIs Glossary

Starting the Screen utility

Included on the Live DVD is Screen, a utility which is available when you boot from the Live DVD into the Universal Recovery Console. Screen allows users to manage multiple shells simultaneously over a single Secure Shell (SSH) session or console window. This allows you to perform one task in a terminal window (such as verify mounted volumes) and, while that is running, open or switch to another shell instance to perform another task (such as to run the local_mount utility).

The Screen utility also has its own scroll-back buffer, which enables you to scroll the screen to view larger amounts of data, such as a list of recovery points.

Note: This utility is provided for convenience; use of the Screen utility is optional.

The screen utility starts on the machine booted with the Live DVD by default. However, if you have closed this application, you must start the Screen utility from the Live DVD using the procedure below.

If the machine was booted from the Live DVD, then in the terminal window, type screen and press Enter.

The Screen utility starts.


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Launching a bare metal restore for a Linux machine using the command line

Once the Live DVD ISO image is accessible on the machine on which you want to perform a BMR, and the number and size of volumes matches between the target machine and the recovery point you want to restore to bare metal, then you can launch a restore from the command line using the local_mount utility.

Note: This component was formerly called aamount.

If you want to perform a BMR using the Rapid Recovery Core Console UI, see Selecting a recovery point and initiating a BMR.

Note: When performing this procedure, do not attempt to mount recovery points to the /tmp folder, which contains the rapidrecovery-vdisk (formerly aavdisk) files.

This task is a step in Performing a bare metal restore for Linux machines. It is part of the process for Launching a bare metal restore for a Linux machine using the command line.

Complete the steps in this procedure to select a recovery point on the Core to roll back to the physical or virtual BMR target machine.

  1. To run the Rapid Recovery local_mount utility as root, type the following command and then press Enter:
    		sudo local_mount
  2. To list the protected machines, type the following command and then press Enter:
    		lm
  3. When prompted, enter the connection information for the Rapid Recovery Core as described in the following table, pressing Enter after each required command:
    Table 1. Rapid Recovery Core connection information
    Text Box Description Required
    Rapid Recovery Core IP address or hostname The IP address or hostname of the Rapid Recovery Core. Yes
    Domain The domain of the Rapid Recovery Core. This is optional. No
    User The user name for an administrative user on the Core Yes
    Password The password used to connect the administrative user to the Core. Yes

    A list displays showing the machines protected by the Rapid Recovery Core. It lists the machines found by line item number, the host display name or IP address, and an ID number for the machine.

  4. To list the recovery points for the machine that you want to restore, type the list recovery points command using the following syntax and then press Enter:
    		lr <machine_line_item_number>
    Note: You can also enter the machine ID number in this command instead of the line item number.

    A list displays the base and incremental recovery points for that machine. This list includes:

    • A line item number
    • Date and time stamp
    • A lettered list of volumes within the recovery point
    • Location of the volume
    • Size of the recovery point
    • An ID number for the volume that includes a sequence number at the end, which identifies the recovery point
  5. To select the recovery point for a restore, enter the following command and then press Enter:
    		r <recovery_point_ID_number> <path>
    CAUTION:
    You must ensure that the system volume is not mounted.
    Note: If you started the machine from the Live DVD, then the system volume is not mounted.

    This command rolls back the volume image specified by the ID from the Core to the specified path. The path for the restore is the path for the device file descriptor and is not the directory to which it is mounted.

    Note: You can also specify a line number in the command instead of the recovery point ID number to identify the recovery point. In that case, use the agent/machine line number (from the lm output), followed by the recovery point line number and volume letter (from the lettered list of volumes within the recovery point), followed by the path. For example:

r <machine_line_item_number> <base_image_recovery_point_line_number> <volume_letter> <path>

For example, type:

r 1 24 a /dev/sda1

In this command, <path> is the file descriptor for the actual volume.
  6. When prompted to proceed, enter y for Yes and then press Enter.

    After the restore begins, a series of messages will display that notify you of the restore completion status.

    Note: If you receive an exception message, the details regarding that exception can be found in the local_mount.log file. The local_mount.log file is located in /var/log/apprecovery.
  7. Upon a successful restore, exit local_mount by typing exit and then press Enter.
  8. Your next step is to verify the restore. For more information, see Verifying the bare metal restore from the command line.

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Verifying the bare metal restore from the command line

Dell recommends performing the following steps to verify a bare metal restore completed from the command line.

This task is a step in Performing a bare metal restore for Linux machines.


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Performing a file system check on the restored volume

Once you execute a bare metal restore from the command line, you should perform a file system check on the restored volume to ensure the data restored from the recovery point was not corrupted.

This task is a step in Performing a bare metal restore for Linux machines. It is part of the process for Verifying the bare metal restore from the command line.

Perform the task below to perform a file system check on the restored volume.

  1. From the command line in the Universal Recovery Console of the Linux machine you have restored, to verify whether the appropriate partitions are mounted, type the following command and then press Enter:
    		df
  2. If the restored volume is not mounted, then skip to Step 3. If the restored volume is mounted, unmount it by typing the following command and then pressing Enter:
    		umount <mount point>
  3. Run a file system check on the restored volumes by typing the following command and then press Enter:
    		fsck -f <volume>

    If the fsck returns clean, the file system is verified.

  4. Mount the appropriate volumes once again by typing the following command in format mount <volume> <folder>, and then press Enter.

    For example, if the volume path is prod/sda1 and the folder you want to mount to is mnt, then type the following and then press Enter:

    		mount /dev/sda1 /mnt

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