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8183
Number of Proxies
Good Morning,
Is there a limit on the number of vadp proxies per vcenter for Avamar 6.1 image level backup?
Regards,
Binod
This post is more than 5 years old
17 Posts
0
8183
Good Morning,
Is there a limit on the number of vadp proxies per vcenter for Avamar 6.1 image level backup?
Regards,
Binod
Top
fdxpilot
143 Posts
1
March 5th, 2013 20:00
Small world. I believe we were the customer that was the subject of escalation 4916. It took months and many, many escalations and conversations with our account team, support, and engineering but this is the response we finally received from some pretty senior folks in Avamar engineering:
“The 48 proxy limit is a QA issue – it is the max we have tested with. If the customer installs more, it puts them in questionable support territory.”
Before reducing the number of proxies, we were seeing a lot of backup jobs cancelled each night. The 48 proxy "limit" is supposed to be enforced in later versions of Avamar. We were also directed to not start backups for more than 15 proxies simultaneously. So we ended up scheduling the Avamar group for each of our vSphere clusters to start at 15 minute intervals. The reason we needed so many proxies wasn't as much for backup window considerations as it was a side effect of the number of vSphere clusters we have. We wanted all backups to use hot add transport and the hosts in each cluster share common storage (and no storage is shared between hosts in different clusters). This necessitated sufficient proxies in each cluster to backup the VMs in that cluster -- with a minimum of two proxies per cluster for redundancy. Backups have been running well with 48 proxies and some utility node memory tuning.
RudreshReddy
16 Posts
0
February 20th, 2013 04:00
The number of proxies are configured based on the number of existing VM's in the vCenter, it is usually 20 VM's per proxy. Not sure how they calculate per vCenter basis.
Thanks
Rudresh
aj2546
49 Posts
0
February 20th, 2013 04:00
20 VMs per proxy, does that mean I can run 20 backups at once? Or am I still limited to 1 VM backup per proxy at a time?
binodprasai
17 Posts
0
February 20th, 2013 13:00
Thanks Rudresh,
I am looking for the number of proxy we can have per vCenter for Avamar 6.1.
Thanks
Binod
J_H_
498 Posts
0
February 27th, 2013 14:00
I am running 6.1 and I have 20 proxies
I heard you might be able to do more in 6.1 but no where in the manual does it say so - which I assume you already know.
So we need to know from an EMC tech - how many proxies can you have....
J_H_
498 Posts
0
February 27th, 2013 14:00
RudreshReddy - so you are saying for every 20 vm's we should make a proxy - so if I have 1000 vm's its ok to make 50 proxies? I know there was a limit to the number you should have. I have just never been able to find any guide on that.
JWeinsheimer
91 Posts
0
February 28th, 2013 07:00
If there's no limit documented I would assume you can can install as many as your environment can needs.
Anonymous
5 Practitioner
5 Practitioner
•
274.2K Posts
2
March 1st, 2013 04:00
Here's the best answer to the maximum number of proxies question I have been able to find. This info came Avamar Escalation 4916 (6.1.0-333 server) and has been paraphrased for easy reading.
In summary:
In this case the customer reduced the number of proxies to 48 and resolved their performance issue.
It appears the 20 VMs to 1 proxy rule-of-thumb may be outdated or #3 needs to be enforced if they need more than 48 due to the number of datastores in use.
ionthegeek
2K Posts
0
March 6th, 2013 05:00
fdxpilot, you have an excellent memory. I just checked the customer name for Esc 4916 and guess who I found...
SystemMangler
24 Posts
0
March 8th, 2013 11:00
I too went through this pain recently, 700+ VMs with 50%+ failure rates with "Timed out response" error. Took a long long time to identify the number of proxies as the issue. Client had 72 ESX host VMware farms and our original design a called for 1 host : 1 proxy.
In the proxy logs, it complained of no connections available to the MCS server which had 32 max, 5 of which used for the vCenter. Once we dropped the number of proxies down to 20-25 the failures went away.
I Would love to know how you manage to use 48 as this environment is only going to grow further. Client is running 6.1SP1.
And I hope the documentation has been updated to reflect the limit
.
Jonathan