Hi,

did you check network performance and bandwidth using the iperf command on both sides.

Here what is suggested from the avamar manual:

Network bandwidth recommendations

Before you add a Data Domain system to an Avamar configuration, ensure that the

infrastructure provides adequate network bandwidth for backups and Avamar

maintenance activities.

Network bandwidth in an Avamar configuration has the most impact on Avamar client

backups to a Data Domain system and Avamar server maintenance activities. The

process that sends Avamar client metadata to the Avamar server has less impact on

the network bandwidth.

To measure the network bandwidth between the Avamar server and Data Domain

system, use the iperf utility. The iperf utility is available on the Avamar server, on

the Data Domain system, and from the Internet:

l On an Avamar server, the Linux operating system includes the iperf utility

in /usr/local/avamar/bin.

l On a Data Domain system, the Data Domain Operating System (DD OS) includes

the iperf utility.

l For Avamar clients, download the iperf utility from the Internet.

Use the iperf utility to test the network bandwidth

For the most comprehensive results, run the iperf utility in server mode on the

Avamar server and in client mode on the Data Domain system. Then run the iperf

utility in server mode on the Data Domain system and in client mode on the Avamar

server. Run the iperf utility several times to verify the consistency of the results.

Procedure

1. Run the iperf utility in server mode on the Avamar server by typing the

following command:

iperf -s -w 256k

2. Run the iperf utility in client mode on the Avamar server by typing the

following command:

iperf -c iperf-server-name -w 256k

where iperf-server-name is the iperf server.

To view statistics for every second, add the -i 1 option.

3. Run the iperf utility in server mode on the Data Domain system by typing the

following command:

net iperf server window-size 256K

4. Run the iperf utility in client mode on the Data Domain system by typing the

following command:

net iperf client iperf-server-name window-size 256K

where iperf-server-name is the iperf server.

To view statistics for every second, add the interval 1 option.

bye