OpenDirect / Granular Restore
Windows Operating Systems
AhsayOBR must be installed on a 32-bit or 64-bit Windows Operating System as libraries for OpenDirect only supports Windows platform.
- Windows 7 SP 1 or above
- Widnows 8
- Windows 8.1
- Windows 10
- Windows Server 2008 R2 SP 1 or above
- Windows Server 2012
- Windows Server 2012 R2
- Windows Server 2016
- Windows Server 2019
For MS Hyper-V, AhsayOBR must be installed on a 32 bit or 64-bit Windows Operating System as libraries for Hyper-V Granular Restore only supports Windows platform. (Windows 7 and Windows Server 2008 are not supported)
For VMware, AhsayOBR must be installed on a 64-bit Windows machine as libraries for Granular only supports 64-bit Windows operating system for VMware ESXi/VCenter.
Available Spare Drive Letter
One spare drive letter must be available on the Windows machine for the OpenDirect/Granular restore process, as the compressed file or image (for OpenDirect restore) or VDDK virtual disk (for Granular restore) is mounted on Windows as a logical drive. AhsayOBR will automatically assign the next available drive letter in alphabetical order for the compressed file, image, or for mounted virtual disk.
- The Windows drive letters A, B, and C are not used by OpenDirect/Granular Restore.
- The assigned drive letter(s) will be released once you exit from AhsayOBR UI.
Network Requirements
The recommended minimum network speed is at least 100Mbps download speed.
The network bandwidth requirements will increase in proportion to the size of the guest VM, compressed file/image, and the incremental delta chain length to ensure optimal performance. Working with limited network bandwidth may severely affect the granular restore performance.
You can use an online network speed test website (e.g., https://www.speedtest.net) to get an idea of the actual bandwidth of the machine.
Other Dependencies
The following dependencies are restore-related and need to be installed on the AhsayOBR machine for OpenDirect/Granular restore to work. The absence of these elements will not affect the backup job but will cause the restore to fail.
- Microsoft Visual C++ 2015 Redistributable (x86) / (x64)
https://www.microsoft.com/en-US/download/details.aspx?id=48145 - Microsoft Visual C++ 2015 Redistributable Update 3 RC
https://www.microsoft.com/en-us/download/details.aspx?id=52685 - Update for Universal C Runtime in Windows
https://support.microsoft.com/en-us/help/2999226/update-for-universal-c-runtime-in-windows - Microsoft Security Advisory 3033929 for Windows 7 and Windows Server 2008 R2
https://learn.microsoft.com/en-us/security-updates/securityadvisories/2015/3033929