Veeam Backup and Replication.

what are the best practices to reduce "Stun" when creating a VM backup using veeam backup and replication.  we are using Nutanix solutions using VMware, I have read best practices. however, they have conflicting ideas about there best practices.

would somebody be able to give me some ideas based on their experience on what would be the best practices to reduce "stun" during backup.
pawingAnalystAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you are referring to the practice of stunning as part of the Snapshot routine, which is used in the Backup API, by most if not ALL Backup applications of VMware vSphere as a method of getting the lock off the parent VMDK, to backup...

1. Schedule Backups on fast storage.
2. Schedule Backups out of hours, when the VMs are quiet, idle, or not under heavy I/O.
3. Don't use snapshots, or a backup product which uses them. e.g. Snapshot on the SAN.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Mr TorturSystem EngineerCommented:
Hi,
with Veeam, VMware and Nutanix I don't see other way to evade the stun state.
A big way to reduce it is San snapshot but at the moment Veeam supports it only for some HP and Netapp. Incoming EMC support is expected.

I agree with Andrew Hancock comments about reducing stun state.

What are the "conflicting ideas about best practices" bothering you, can you explain ?
0
pawingAnalystAuthor Commented:
Thanks a lot for the help guys, we found a solution on how to minimize the stun state. it is more efficient compare to our current setup.

when I was looking for answers to our problem, I came across with one of VMware document in that document it says that use Network Transport instead of appliance Transport (hot-add). At the same time I was also asking technical support from Veeam and there were saying to use Hot-add transport (our current setup).

Our current setup uses appliance transport with one veeam proxy  serving  12 exsi host.

we tested 2 transports  in our environment and it turns out they have their pros and cons. Using Network transport somehow minimizes the stun state, we only loss about 8 ping packets for the whole duration of backup. but the waiting time to finish the backup is too long.

we tested also the appliance transport with veeam proxies installed in each host, and it turns out this is the most efficient configuration that will be applicable with our needs. we only loss about 9-10 ping packets during the entire duration of backup. the only thing is we have to purchase more OS license.

 thanks a lot for the help.
0
Mr TorturSystem EngineerCommented:
Hi,
yes pros and cons, it depends.
Finally in a transport term the more performant way would be San transport (FC), then hot-add and finally network, but also depending of your ressources (network speed, physical esx ressources for proxies, etc...). And also you can have other less basic solution (e.g. make hot add with proxies but over FC).

In the past with Veeam (or vRanger) I usually found hot add better than LAN but had a few issues with hot add because of its design.
Veeam proxies are made to be scalable, so yes you found it on your own in case of low performance you can test to add more proxies in your VMware environnment, also Veeam proxies must be windows OS so you got to pay the license.
Bye
1
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
VMware

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.