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netbackupsolarisbmrrestore

Restore Solaris Using NetBackup BMR

Here we are going to restore a Solaris client using NetBackup Bare Metal Restore. Before we are able to do that we have to enable this option in the NetBackup policy for the client:
bmrpolicy.jpg

When the backup was done successfully you're ready for a NetBackup Bare Metal Restore.

Considerations

Bare Metal Restore Infrastructure

When performing a Bare Metal Restore you'll have to keep a few things in mind. Originally a bare metal restore is intended to restore to the original machine form which the backup was taken. However, in our environment we use the Bare Metal Restore to restore the production environment to our acceptance environment for Continuity Planning reasons. That means that the original server is still online when the restore takes place. Luckily that is supported by Symantec and described in this technote.

Network Configuration

The Solaris environment we're restoring is Install Solaris 10 Update 8, and as explained in that article that edition of Solaris does not have native support for the VMXNET3 network adapter. That card is however supported after installing the VMware Tools. That means that the backup we made is for a VMXNET3 card, which we cannot use because the boot media uses the native solaris installation media. Remember to create the VM to restore to with an e1000 network adapter and configure the network after reboot accordingly.

DNS

NetBackup is heavily dependent on a working DNS environment. You MUST change the hostfile on all NetBackup servers that have a role in this Bare Metal Restore action. In our environment that is:

  • bckmaster01b
  • bckmaster01a
  • bckmedia01 (media server appliance)
  • bckmedia02 (media server appliance)

Add this line to the hostfile (open the file in notepad while opening notepad as administrator)(C:\WINDOWS\system32\drivers\etc\hosts):

10.10.10.40   solarixbox

Running the Restore

Because the VM we're going to restore to is not the original VM the hardware we're going to restore is never the same, plus that we have to consider the changed network card. That means we'll first have to get the new hardware configuration into NetBackup. Easiest way is to start a discovery on the server and than use that discovered hardware to create a new profile to restore with.
So, as a overview, these are the steps:

  1. Create a discovery task of the client
  2. Start the client so hardware discovery can take place
  3. Create a New Client Configuration using the current configuration as source
  4. Edit the newly created client configuration for the new network card and the changed disks
  5. Prepare to restore the client
  6. Restore the client

Create a Discovery Task

In the Bare Metal Restore Clients section in the NetBackup Administration console expand the client you're about to discover and select “Prepare to discover” and enter all required information:
bmrdiscovery01.jpg

Start the Client Hardware Discovery

Start the client using the created media boot cd and select Solaris:
restoretest08.jpg
Select option 2:
restoretest19.jpg
Enter the name of the client you are restoring (do not use the FQDN name):
restoretest09.jpg
Enter the temporary IP address which you also entered in the hosts files on the NetBackup servers:
restoretest10.jpg
Select yes to be able to enter a subnet mask:
restoretest11.jpg
Enter the subnet mask:
restoretest12.jpg
Do not use IPv6:
restoretest13.jpg
Select to specify a default route:
restoretest14.jpg
Enter the default route:
restoretest15.jpg
Review your settings:
restoretest16.jpg
NOTE THIS SCREENSHOT uses the FQDN name of the NetBackup server which will result in network errors. Be sure to enter just the short hostname: “bckmaster01a”. Also note that you can't use backspace here, be sure to make no typos:
restoretest17.jpg

After the discovery has been done reboot the client: NOTE THIS SCREENSHOT is from a automatic discovery instead of a manual one, so your screen might be a little different:
restoretest21.jpg

Create and Edit a New Client Configuration

In the Bare Metal Restore Clients section in the NetBackup Administration console expand the client you're about to restore and select the “New Client Configuration”:
restoretest01.jpg
Select the current configuration as the source to copy from:
restoretest02.jpg
Right click the newly created profile and select “Change”:
restoretest03.jpg
Configure the hosts, network configuration and routes to your needs:
restoretest04.jpg
restoretest04-02.jpg
restoretest04-03.jpg
restoretest04-04.jpg
NOTE THESE SCREENSHOTS are from after initialization and mapping: Here you have to initialize the volumes with the discovery you created in steps one and two. After initialization there is one disk under the native part. This disk has a restriction which has to be removed after which you can map the disk/volumes/filesystems:
restoretest22.jpg
restoretest22-02.jpg
restoretest22-03.jpg

Prepare to Restore

Now you're ready to prepare the systen for restore. Right click the client and select “Prepare to Restore”:
restoretest05.jpg
Fill in the fields to use the configuration you adjusted for restore:
restoretest06.jpg
You'll get an warning about the running kernels. As long the the kernel in the SRT is newer than the kernel of the system you're restoring you'll be fine:
restoretest07.jpg

Restore the Client

Now boot the client the same way as you did in step two. If you did everything successful the restore will start running:
restoretest23.jpg
Which you can check on the NetBackup master server:
restoretest23-02.jpg

Post Restore

Don't forget to clean up the restore in the tasks panel. To do so right click the task and select “Clean Up”. This has to be done manually since the client will boot (without network) or at least with a different IP address than the NetBackup servers have listed in their hosts file.

Also don't forget to:

  • Configure the network
  • Check all the filesystems
  • Remove the hosts file listing on the NetBackup server you created
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netbackupsolarisbmrrestore.txt · Last modified: 2021/09/24 00:24 (external edit)