Dell NetWorker 19.9 Administration Guide

The BMR recovery process restores the operating system that was installed on the source host. If you perform a BMR recovery to a different host with different hardware, after the recovery operation and restart completes, Windows prompts you to install the required drivers.

Before you perform a BMR recovery to a different host, ensure that you meet the following requirements:

• The source and target hosts use the same processor architecture.
• The hardware on the target host is operational.
• The target host has a minimum of 512 MB of RAM.
• The target host startup hard disk capacity must be larger or the same size as on the source host, regardless of the amount of space actually in use. If the disk is smaller by a single byte, BMR fails.
  NOTE:Verify whether the source critical volumes are part of a larger physical disk. If critical volumes are on a larger physical disk, all target critical volumes must be large enough to accommodate the entire underlying physical disk. Use the Windows Disk Management utility to verify disk configuration and size.
• The number of disks on the target host is greater than or equal to the number of disks there were on the source host. The disk LUN numbering on the target host must match the disk LUN numbering on the source host.
• The RAID configuration on the target host should match the disk order of the hard disks.
• The disk or RAID drivers that are used on the source system must be compatible with the disk or RAID controllers in the target system. The recovery process restores the backup to the same logical disk number that was used by the source host. You cannot restore the operating system to another hard disk.
• Windows BMR supports IDE, SATA, or SCSI hard disks. You can make the backup on one type of hard disk and recover on another type of hard disk. For example, SAS to SATA is supported.
• The target system can access the Windows BMR image as a bootable CD/DVD volume or from a network start location.
• The target system has the NIC or storage device drivers installed that match the NIC.
  NOTE:All NIC or storage device drivers must not require a restart to complete the driver installation process. If the drivers require a restart, then the BMR recovery process fails and prompts you to install the drivers again.