Best Practices

Page tree

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

CPU load of machines on which NAKIVO Backup & Replication is deployed are affected by the following factors:

It is recommended to run 6 concurrent tasks for CPUs with 2 cores. 

Examples

  • Intel x86-64 CPUs, 2 cores - 6 concurrent tasks
  • Intel x86-64 CPUs, 4 cores - 12 concurrent tasks

RAM

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

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

where

  • ODS is the original data size
  • NTF is the network type factor
  • BWT is 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.

The NTF value is defined as follows:

  • If WAN is used, the factor is equal to the compression ratio, CR.
  • If LAN is used, the factor is equal to 1.

For daily increment, the time period (in hours), Td, can be defined based on the following expression:

Td = ODS * DDC * 1000 * NTF / BWT / 3600

where DDC is daily data change in %.

Depending on the infrastructure size – see above for quantitative characteristics,– the following Tf / Td backup time periods can be obtained for 110 MByte/s network speed, 3% of the daily data change, and 50% of the compression ratio:

  • Typical. 77.2 / 2.31 hours.
  • Medium. 771.6 / 23.5 hours.
  • Large. 7,716 / 231.5 hours.

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.


  • No labels