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Gostev
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Re: Increase in Hot Add backup time after installing Update

Post by Gostev » Aug 24, 2018 10:58 am

We have also published a knowledge base article with the hotfix > KB2711

Virtualredse
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Re: Increase in Hot Add backup time after installing Update

Post by Virtualredse » Sep 14, 2018 2:11 pm

Is it possible that this increase could cause backup proxies to time out altogether.
In the past couple of weeks we have seen 3 different W2016 backup proxies essentially become invalid/orphaned in VMware whilst having 7 or 8 disks attached. The job logs showed some of the hot add disks were still at 0% upon the job failing. ESXi v6.5.0 9298722

I have had a veeam support call open but all relevant logs requested did not return anything useful on the cause. I have since applied the hotifx today anyway but wondered whether these could be linked ?

foggy
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Re: Increase in Hot Add backup time after installing Update 3a

Post by foggy » Sep 17, 2018 3:43 pm 1 person likes this post

Hi Matthew, hard to tell, feel free to escalate the case for further investigation if hotfix doesn't help.

mkretzer
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Re: Increase in Hot Add backup time after installing Update 3a

Post by mkretzer » Sep 22, 2018 7:27 am

One question: We use hotadd only for restores and one with one specific proxy, normally we use direct SAN (which we switched to read only on all LUNs) on other proxys or NBD.

Is it ok to only install the hotfix on this one proxy which does hotadd?

Gostev
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Re: Increase in Hot Add backup time after installing Update 3a

Post by Gostev » Sep 22, 2018 11:03 am

Yes, absolutely.

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Re: Increase in Hot Add backup time after installing Update 3a

Post by leeryan » Sep 26, 2018 9:39 am

I've installed this hotfix, and yet i'm still facing the same problem.

The thing is, this seems to have happened overnight, as i've been backing up for a good month or 2 and now this issue has appeared.

It's taking hours for a backup to complete where as before it was literally 10-15 minutes.

I haven't changed anything in my vcenter setup or veeam. Apart from installing the hotfix now which still hasnt resolved it..

Anything else I should try doing?

leeryan
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Re: Increase in Hot Add backup time after installing Update 3a

Post by leeryan » Sep 26, 2018 10:33 am

Actually managed to resolve this.

I noticed I could not access snapshot settings from inside vCenter.

I restarted the service " VMware vSphere Profile-Driven Storage Service" from inside the vcenter appliance management page on port 5480, and ran a backup. Finished in minutes again.

Hope it potentially helps anyone else experiencing this issue!

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Re: Increase in Hot Add backup time after installing Update 3a

Post by awinkler77 » Oct 11, 2018 7:03 am

Hello all,

in our environment the kb2711 was the solution. As the support explained to me, it is not really a problem of veeam componentens but of vmware componentens, as veeam uses the vmware dlls/exe for hot add. With the exchange of the folders and the veeamagent.exe, they use the older versions.

Our hot add backups also seeam to be a bit faster now, i think. I hope in Update4 the problem will not come back again. ;-)

Regards
André

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Re: Increase in Hot Add backup time after installing Update 3a

Post by Fenris » Oct 25, 2018 9:09 pm 1 person likes this post

I can recommend to switch to NBD Mode, we were struggling with Hot-Add a long time, but while troubleshooting another storage / backup related issue, we switched modes and were super surprised how well it worked.

Gostev
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Re: Increase in Hot Add backup time after installing Update 3a

Post by Gostev » Oct 26, 2018 5:35 pm

I assume you have 10Gb Ethernet then ;)

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Re: Increase in Hot Add backup time after installing Update 3a

Post by Fenris » Oct 27, 2018 2:52 pm

Yes of course, I've taken this as obvious, since it was already mentioned. 10 GB is a clear must.

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Re: Increase in Hot Add backup time after installing Update 3a

Post by solveit » Nov 23, 2018 2:53 am

@Fenris

What sort of speeds are you getting using NBD? We have 10Gb and are still only getting 35-45MB/s whereas when hotadd works we get anything from 150-450MB/s depending on size of VM and delta changes.

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Re: Increase in Hot Add backup time after installing Update 3a

Post by foggy » Nov 23, 2018 10:19 am

The first step in troubleshooting performance issues is always reviewing the bottleneck stats. If you'd like to continue this discussion, please create a separate topic as your question is not related to the original one discussed in this thread. Thanks for understanding!

EDIT: Ok, I see you've already started another discussion regarding your issues, so disregard.

mkretzer
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Re: Increase in Hot Add backup time after installing Update 3a

Post by mkretzer » Nov 29, 2018 8:36 pm 1 person likes this post

For us NBD was SOOO much faster than HotAdd or SAN just because with 2500 VMs the start of reading after snapshot took way to long with SAN/hotadd.

We use 4 NBD virtual proxies now and Veeam never was so fast as it is now....

Gostev
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Re: Increase in Hot Add backup time after installing Update 3a

Post by Gostev » Nov 29, 2018 10:02 pm

On 10Gb Ethernet, NBD is the real winner ;) especially with async NBD supported we added in Update 3a.

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