Article number
000003621
Affected Versions
All
Source Hypervisor
All
Target Hypervisor
All

How to Adjust Bandwidth Throttling in the ZVM UI

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Summary

Throttling settings include bandwidth settings and bandwidth regulation and IO throttling.

You can specify bandwidth throttling, which is the maximum bandwidth that Zerto uses from this site to all peer recovery sites. The default value is for Zerto to automatically assign the bandwidth used per VPG, based on using the maximum available and then prioritizing the usage according to the priority set for the VPGs sending data over the WAN.

Bandwidth Throttling:
Define this to control the amount of traffic going out of your site.
When defined, this is the maximum bandwidth that Zerto uses from this site to all peer recovery sites.
Zerto throttles the bandwidth used so that on average, bandwidth usage from the protected site does not exceed the limit.
If you do not specify bandwidth throttling, the default is for Zerto to automatically assign the bandwidth used per VPG, based on using the maximum available and then prioritizing the usage according to the priority set for the VPGs sending data over the WAN.

Time-based Throttling:
Define this to throttle the bandwidth during specific times. For example, during the daily peak transaction period you can change the bandwidth throttling, to override the general setting.


An user may need to enable, adjust or disable Bandwidth Throttling and/or Time-based Throttling

Steps

1. Login to the ZVM UI.

2. Click SETTING  in the top right of the header and select Site Settings.

3. Click Throttling.

4.  Bandwidth Throttling: Check to enable, uncheck to disable
  • In the text area that become available, set the MB/sec. The valid range is from 0 to 1300 MB/sec.
  • With 0 MB/sec, Zerto automatically assigns the bandwidth used per VPG, based on using the maximum available and then prioritizing the usage according to the priority set for the VPGs sending data over the WAN.
  • Enter the MB/sec when the value required is 100 MB/sec or more.
 

​​​​​5. Time-based Throttling: Check to enable, uncheck to disable.

Limited: Select to define the limit, then define:
From: The hour and the minute to start the throttling, using a 24-hour clock.
To: The hour and the minute to end the throttling, using a 24-hour clock.