Forum ©XSIBackup: ©VMWare ©ESXi Backup Software

al40in

Member

Registered: 2019-09-10

Posts: 2

backup speed from A to B is 10 times slower than B to A

i have small office site with two esxi 6.0.0 hosts and 1gb direct link between.

A is HP ProDesk 400 G2 MT (TPM DP) Intel(R) Core(TM) i5-4590S CPU @ 3.00GHz
B is HP ProLiant DL20 Gen9 Intel(R) Xeon(R) CPU E3-1220 v5 @ 3.00GHz

shame on me, i have realtek nic in A, so backup speed from B to A is reasonable 20-30MB/s with XSIBackup-free. (11.2.4)
but backup speed from A to B is only 3MB/s and heavy CPU load on B

where to lookup misconfiguration?

Last edited by al40in (2019-09-10 12:28:10)

admin

Administrator

Registered: 2017-04-21

Posts: 2,072

Re: backup speed from A to B is 10 times slower than B to A

Make sure that you have activated cache on your [b]HP ProLiant DL20 Gen9[/b]. The cache comes turned off in the BIOS in this type of server.

On the other side you are right, you aren't going to get much out of a Realtek chipset. Buy an Intel desktop NIC and add it to your [b]HP ProDesk 400 G2 MT[/b]

al40in

Member

Registered: 2019-09-10

Posts: 2

Re: backup speed from A to B is 10 times slower than B to A

thanks. it helped

admin

Administrator

Registered: 2017-04-21

Posts: 2,072

Re: backup speed from A to B is 10 times slower than B to A

You should achieve at least 70-80 MB/s
If you are not getting there, think what else could be causing a bottleneck.