The following table provides a high-level comparison of integrated and image-based hot bare metal recovery.
Item |
Integrated BMR |
Image-based BMR |
---|---|---|
Recovery Time Objective (RTO) |
Faster recovery time than with image-based BMR. |
Slower recovery time than with integrated BMR. |
Recovery Point Objective (RPO) |
More recovery points available since you restore from any eligible file-level backup. |
Fewer recovery points since you restore from a bare metal backup only. |
Recovery types |
Supports physical-to-virtual (P2V), virtual-to-physical (V2P), physical-to-physical (P2P), and virtual-to-virtual (V2V) DR. |
Supports physical-to-virtual (P2V), virtual-to-physical (V2P), physical-to-physical (P2P), and virtual-to-virtual (V2V) DR. |
Dissimilar restore of Windows Vista/Server 2008 |
Yes, restore of Windows Vista/Server 2008 to dissimilar hardware is supported on appliances running Unitrends version 7.5 and higher. |
Yes, restore of Windows Vista/Server 2008 to dissimilar hardware is supported. |
Dissimilar restore of Windows XP/Server 2003 |
No, restore of Windows XP/Server 2003 to dissimilar hardware is not supported. |
Yes, restore of Windows XP/Server 2003 to dissimilar hardware is supported. |
On-system retention |
More on-system retention due to eliminating bare metal backups. |
Less on-system retention due to bare metal backup storage. |
ISO image/boot disk |
Standard 32- and 64-bit ISO images used for most Windows clients; available on the Unitrends system. |
Separate ISO required for each Windows client; ISOs must be created manually with the Unitrends bare metal agent. |
Bare Metal Interface |
Simplified wizard interface enables DR to the desired point-in-time using a single process, decreasing overall recovery time. Leverages WinPE 4.0 for all Windows clients. |
Two dialog-based interfaces (one WinPE 1.5 for older clients, one WinPE 2.0 for newer clients), cannot perform DR in a single process. |
Target disk size |
Supports recovery of original Windows client to a smaller disk size. |
Must recover to a disk of an equal or greater size than that of the original client. |
UEFI-based clients |
Supports recovery of UEFI-based clients. |
Cannot recover UEFI-based clients. |
GPT-partitioned clients |
Supports recovery of GPT-partitioned clients. |
Cannot recover GPT-partitioned clients. |