KB10062 Slow backup with vProtect

KB ID: 10062

Product: vProtect

Version: 4.2.0-4.3.0

Published: 2021-12-21

Last modified: 2021-12-21

Problem

Small bandwidth and long backup period.

Check network interface speed with commad (name of the network interface can be differnet):

sudo ethtool eth0 | grep Speed

cat /sys/class/net/eth0/speed

dmesg |grep eth0

Value of speed we can check by iperf. You can install iperf package by typing:

dnf install iperf3

To tests network bandwidth you must run ipref server on other machine by typing:

iperf3 -s

Next you run from vProtect server command :

iperf3 -c <IP_ADDRESS_OF_THE_SERVER_MACHINE>

EXAMPLE OF OUTPUT:

In this case maximum real transfer rate of backup file is about 335 Mbits/sec.

Possible problem can be speed of network interface, driver of network interface, switches or heavy load of network.

Other problem with storage you can check with iostat -x 1 commad from sysstat package.

Example output:

Last column is disk utilization. If its shows high values - your backup period can be higher.

iostat command shows you averge CPU utilization too. If its shows you high values then period of backup can be higher too.