Host-based backup of Microsoft Hyper-V VMs.
Post Reply
SpiderPig
Service Provider
Posts: 11
Liked: 4 times
Joined: Jan 07, 2016 11:12 am
Contact:

suggestion for improvement?

Post by SpiderPig »

When the backup begins all the vms on the host slows to a crawl and its pretty much unusable, slow and sluggish.
We use onhost-proxy for the two jobs (ca 55 vms pr job). The Hyper-V cluster show no sign of distress during the backup, 4-5% cpu, the vnx shows a little more disk io then usual and the Emc Datadomain with ddboost target have no issues.

Will the use of an off-host proxy do any good in this scenario?

A typical day results in this:

Job 1 (58 vms)
Duration 8:14:10
Procrate: 32MB/s
Bottlnck: Source
Processed: 6,8TB
Read: 688,4GB
Transfrd: 399,4GB

Job 2 (53 vms)
Duration 5:58:36
Procrate: 17MB/s
Bottlnck: Source
Processed: 2,1TB
Read: 137,2GB
Transfrd: 86,9GB
Shestakov
Veteran
Posts: 7328
Liked: 781 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: suggestion for improvement?

Post by Shestakov » 1 person likes this post

Hello,
Yes, off-host proxy is to shift the load from the host during backup job activity.
Do you use Veeam ONE for infrastructure monitoring? There are useful assessment reports helping you to tune your infrastructure.
SpiderPig
Service Provider
Posts: 11
Liked: 4 times
Joined: Jan 07, 2016 11:12 am
Contact:

Re: suggestion for improvement?

Post by SpiderPig » 1 person likes this post

Hello, Mr.Hendrix

Im guessing the cpu/ram will be shifted when using off-host proxy but the disk-io will remain?
Can i use Veeam One free for this?

Thanks so much
Shestakov
Veteran
Posts: 7328
Liked: 781 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: suggestion for improvement?

Post by Shestakov » 1 person likes this post

You are correct, Off-host proxy will help mostly with Memory performance and CPU, however, when memory pressure is higher than 100% (memory demand is bigger than memory capacity) Hyper-V moves exceeding memory pages to disk.
Yes, the assessment Veeam ONE reports are available in free version.
There is a good blog post about this.
SpiderPig
Service Provider
Posts: 11
Liked: 4 times
Joined: Jan 07, 2016 11:12 am
Contact:

Re: suggestion for improvement?

Post by SpiderPig » 2 people like this post

Thanks for guiding me through the "purple haze" of Veeaming, Mr.Hendrix

Have a lovely weekend!
Shestakov
Veteran
Posts: 7328
Liked: 781 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: suggestion for improvement?

Post by Shestakov »

You are very welcome!
Once you have a question, don`t hesitate asking.
Post Reply

Who is online

Users browsing this forum: No registered users and 17 guests