Discussions specific to the VMware vSphere hypervisor
Post Reply
PizzaGuy
Novice
Posts: 6
Liked: 1 time
Joined: Jan 20, 2017 3:21 pm
Contact:

One ESXi host under performing

Post by PizzaGuy » Jan 20, 2017 9:35 pm

We have installed Veeam Availability Suite 9.5 on a HP DL380 Gen9 running Windows Server 2016. The DL380 is being used as the backup repository and proxy, using Network Mode (NBD), and uses x4 10G SFP cables to connect to our core switch. Our three node ESXi cluster and SAN are also connected the core via 10G links.

I get very consistent 150 MB/s speeds when backing up any VM running on two of the hosts. However, when backing up any VM running on the third host, I get awful spikes and poor processing rates. The bottleneck is Source at 99%, which I see from the FAQ is the first of the four step process, being the initial read from the source. Is there any way to determine if the source is having trouble at a networking, storage or processing level? This particular host is the most robust of the three. vCenter is error free. Is Veeam able to report more detail about the issues with the source to help me troubleshoot?

Shestakov
Veeam Software
Posts: 6836
Liked: 697 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: One ESXi host under performing

Post by Shestakov » Jan 21, 2017 10:04 pm

Hello and welcome to the community!

Could you give more details on the backup jobs statistics?
Do you have same bottleneck and transport mode for all 3 hosts?
Generally if you have source as a bottleneck, it`s recommended to change a transport mode to hot-add or direct access. Since you wrote SAN has a connection to the proxy I believe you may leverage the direct SAN mode.

Thanks!

jmmarton
Veeam Software
Posts: 1595
Liked: 209 times
Joined: Nov 17, 2015 2:38 am
Full Name: Joe Marton
Location: Chicago, IL
Contact:

Re: One ESXi host under performing

Post by jmmarton » Jan 23, 2017 2:05 pm

If for some reason you can't change the transport mode, take a look at the management interface of the ESXi host exhibiting problems. Perhaps there's an issue there (even something as simple as duplex mismatch).

Joe

PizzaGuy
Novice
Posts: 6
Liked: 1 time
Joined: Jan 20, 2017 3:21 pm
Contact:

Re: One ESXi host under performing

Post by PizzaGuy » Jan 23, 2017 5:41 pm 1 person likes this post

I've found there to be a general error with one of the links to this host. I'll hold off any more additions to this thread until I resolve this issue. Thank you for leading me in the right direction.

PizzaGuy
Novice
Posts: 6
Liked: 1 time
Joined: Jan 20, 2017 3:21 pm
Contact:

Re: One ESXi host under performing

Post by PizzaGuy » Feb 02, 2017 1:35 pm

Correcting the issue with the link resolved the original issue. Thanks for the guidance.

Post Reply

Who is online

Users browsing this forum: Regnor and 32 guests