XenServer + Presentation Server
Daniel333
Member Posts: 2,077 ■■■■■■□□□□
Just looking for a recommendation here.
I have a client with four Xen Server version 5.0 On each of these they host 4 Citrix Presentation servers. Sadly, the first physical server is also hosting their File server.
Daily during logins and again at lunch, the file server becomes overwhelmed chewing up CPU and as well as the local RAID5. This causes all other servers on that physical box to lag too slow to be used.
A) We are not permitted to move any of the virtual machines
We can’t buy any new hardware
C) We can buy any new software
There is plenty of free resources on the other physical boxes, so we would just rather that the load balancing on Citrix Presentation server to favor the Presentation Servers who’s physical machine has more free resources.
Any ideas on how to get this done?
I have a client with four Xen Server version 5.0 On each of these they host 4 Citrix Presentation servers. Sadly, the first physical server is also hosting their File server.
Daily during logins and again at lunch, the file server becomes overwhelmed chewing up CPU and as well as the local RAID5. This causes all other servers on that physical box to lag too slow to be used.
A) We are not permitted to move any of the virtual machines
We can’t buy any new hardwareC) We can buy any new software
There is plenty of free resources on the other physical boxes, so we would just rather that the load balancing on Citrix Presentation server to favor the Presentation Servers who’s physical machine has more free resources.
Any ideas on how to get this done?
-Daniel
Comments
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astorrs
Member Posts: 3,139 ■■■■■■□□□□
This should be easy to accomplish, what load evaluators are you using on these Presentation Server nodes? -
Daniel333
Member Posts: 2,077 ■■■■■■□□□□
CPU/HDD Queue and memory are used across the farm.
Problem is, the physical XenServer tells the virtual Presentation Server there is plenty of resources.-Daniel -
Paperclip
Member Posts: 59 ■■□□□□□□□□
Maybe disable some apps on the 4 Presentation servers on the first machine? -
astorrs
Member Posts: 3,139 ■■■■■■□□□□
Consider adding in a Server User Load evaluator as well and assign a different number of maximum users on the 1st server (less) than on the other servers.CPU/HDD Queue and memory are used across the farm.
Problem is, the physical XenServer tells the virtual Presentation Server there is plenty of resources.
Server User Load is calculated as such - if its set to a maximum of 100 then each user that logs in increases that load by 100 (all load evaluators have a maximum of 10000), if its set to 25 then each user that logs in will increase the load by 400. By tweaking those numbers you can favor/discourage certain servers.
Remember that load evaluators are considered independently (not combined) so the evaluator with the highest load will be used to calculate the load on the server. -
Daniel333
Member Posts: 2,077 ■■■■■■□□□□
Consider adding in a Server User Load evaluator as well and assign a different number of maximum users on the 1st server (less) than on the other servers.
Trying that asap! thanks!-Daniel