Choosing the right infrastructure for deploying NAKIVO Backup & Replication is crucial for obtaining a reliable and robust data protection solution. The minimum NAKIVO Backup & Replication hardware requirements can be found in the NAKIVO Backup & Replication User Guide.
The following hardware components typically form your infrastructure:
- Physical servers.
- Storage devices.
- Networking devices, such as switches, routers, and cables.
- Dedicated network appliances, such as network firewalls.
This article provides you with the recommended hardware requirements for your infrastructure.
CPU load of machines on which NAKIVO Backup & Replication is deployed are affected by the following factors:
- Number of concurrent tasks, i.e. backups, replication, or recovery.
- Data encryption is enabled for backup repository.
- Compression is enabled for backup repository.
It is recommended to run 6 concurrent tasks for CPUs with 2 cores.
- Intel x86-64 CPUs, 2 cores - 6 concurrent tasks
- Intel x86-64 CPUs, 4 cores - 12 concurrent tasks
Amount of available RAM defines the number of concurrent tasks that can be processed by a NAKIVO Transporter. For example, 10 concurrent tasks require additional 2.5 GB of RAM for the host on which NAKIVO Transporter is installed.
Bandwidth affects the amount of time necessary for backing up your data.
For a full backup, the time period (in hours),
Tf, can be defined based on the following expression:
Tf = ODS * 1000 * NTF / BWT / 360
ODSis the original data size
NTFis the network type factor
BWTis the bandwidth (network speed in MByte/s). The network speed is supposed to be greater than the disk speed; otherwise, the disk speed should be used in the expression.
- If WAN is used, the factor is equal to the compression ratio,
- If LAN is used, the factor is equal to
For daily increment, the time period (in hours), Td, can be defined based on the following expression:
Td = ODS * DDC * 1000 * NTF / BWT / 3600
DDC is daily data change in %.
Depending on the infrastructure size – see above for quantitative characteristics,– the following
Tf / T
d backup time periods can be obtained for 110 MByte/s network speed,
3% of the daily data change, and
50% of the compression ratio:
77.2 / 2.31hours.
771.6 / 23.5hours.
7,716 / 231.5hours.
For more details, see Defining Backup Repository Size.
Based on the obtained values, you can determine the restrictions of your infrastructure, and what needs to be improved to reach an acceptable backup time period.