KB ID: | 1877 |
Product: | Veeam Backup & Replication |
Version: | 9.x |
Published: | 2014-04-21 |
Last Modified: | 2020-08-13 |
Identify with what bandwidth the WAN Accelerator feature within Veeam Backup & Replication will be most effective and calculate the needed Cache sizes for both Source and Target WAN Accelerators.
Global Cache on Spinning Disk
Link <3Mb/s - WAN likely saturated; processing rate dependent on data reduction ratio (estimated 10x)
Link >3Mb/s and <50Mb/s - WAN will not be fully utilized; expect ~5MB/s processing rate but less bandwidth
Link >50Mb/s - WAN will not be fully utilized, using direct mode copy will use more bandwidth but likely be faster
These numbers are to be considered as a base line , “Your mileage may vary”. The performance of the underlying storage where the Global Dedupe Cache is located can greatly impact the performance of the WAN Accelerator function.
Tests show that there are no significant performance differences in using spinning disk drives as storage for the target WAN accelerator cache rather than flash storage. However, when multiple source WAN accelerators are connected to a single target WAN accelerator (many-to-one deployment), it is recommended to use SSD or equivalent storage for the target cache, as the I/O is now the sum of all the difference sources.
KB ID: | 1877 |
Product: | Veeam Backup & Replication |
Version: | 9.x |
Published: | 2014-04-21 |
Last Modified: | 2020-08-13 |