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frankive
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wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 9:19 am

Customer is running Windows 2012 R2 Essentials.
Veeam 8 with patch 1 installed.

Trying to populate wan accelerator cache with the local job it says "no known os type found".
I see this is an issue which is supposed to be addressed in patch1.
What could cause this?

and another question: Is it possible to change the wan accelerator size without causing any trouble?

foggy
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Re: wan accelerator - no known os types found

Post by foggy » Apr 09, 2015 12:15 pm

frankive wrote:Trying to populate wan accelerator cache with the local job it says "no known os type found".
I see this is an issue which is supposed to be addressed in patch1.
What could cause this?
Frank, could you please describe your actions in more detail, how have you tried to populate the cache?
frankive wrote:and another question: Is it possible to change the wan accelerator size without causing any trouble?
Yes, you can change the cache size, just make sure it is not currently being used at that moment.

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 1:38 pm

I go to backup infrastructure - wan acceleratos. right click the accelerator. choose populate cache. and select the only local repository which containts the 2012 R2 Essentials VM.
Then it tries to fill the cache, but at the end it says no known guest os found.

Alsso tried to remove wan accelerator, re-add it, delete the physical cachefolder etc.

foggy
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Re: wan accelerator - no known os types found

Post by foggy » Apr 09, 2015 2:24 pm

Any chance the backup is encrypted? Was it created while VM was up and running and with application-aware image processing enabled?

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 09, 2015 5:09 pm

frankive wrote:Veeam 8 with patch 1 installed.
Please double check they really do (with the build number). We often see customers in support claiming they have the patch installed when they do not.

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 7:11 pm

Backup is encrypted. (It is enabled in the local job but 100% visible through restore. If we move the backupfiles and import on another server we have to type the decryptpassword) . Is this the issue?
Yes, backup was created while the vm was up and running and with application-aware image processing enabled.

They have build 8.0.0.917

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 7:34 pm

it is a small customer, so i will configure a full active backup with encryption and try to populate the cache with this job.

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 8:46 pm 1 person likes this post

I can confirm this was caused by the encryption.
The new job full backup of the system drive only would populate the wan accelerator just fine.
Thanks!

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 09, 2015 9:02 pm

Were you trying to populate cache on the target side from an encrypted seeded backup?

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 09, 2015 9:28 pm

No. Were trying to populcate the source wan accelreator (custom side). Somehow it didnt recognize the os.
After running a new active full backup without the encryption on the backup it successfully populated the wan accelerator with 2012 R2

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 09, 2015 10:57 pm

OK. While this sounds like a bug, what was the point of populating the source WAN accelerator anyway? The cache is used by target WAN accelerator only...

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Re: wan accelerator - no known os types found

Post by frankive » Apr 10, 2015 8:06 am

I was under the impression that you need to populate cache on both customer AND service provider site? How does the service providers compare which blocks to transfer if it doesnt have a cache to compare FROM?

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Re: wan accelerator - no known os types found

Post by foggy » Apr 10, 2015 2:16 pm

Source side has VM disks digests for that purpose.

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 10, 2015 4:23 pm

We don't need actual cache contents at source (where we already have all the VM data readily available anyway). It is target where we need to cache the recurring data blocks, so that we don't have to transfer them over WAN again, instead just instructing target accelerator to obtain them from the local cache.

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 13, 2015 9:51 am 1 person likes this post

Ah, that makes sense of course. Well, lesson learned!

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 13, 2015 12:51 pm

I have enhanced the description on the corresponding step of WAN accelerator creation wizard in the Update 2 to make it more obvious.

frankive
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Re: wan accelerator - no known os types found

Post by frankive » Apr 14, 2015 9:09 am 7 people like this post

Pretty amazing that a 1 billion $ company is listening to small independent consultants and change their product on the fly. Gotta love #Veeam! :)

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Re: wan accelerator - no known os types found

Post by Gostev » Apr 19, 2015 7:18 pm

Thank you for your kind words! I wish every issue was as easy to fix :D

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