[THIN] Re: Citrix Farm performance over WAN

  • From: "Andrew Wood" <andrew.wood@xxxxxxxxxxxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Thu, 7 Jul 2011 17:15:34 +0100

Yes, that's the thing I'd look at . 

 

You've not got edgesight running have you angela?

 

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Landin, Mark
Sent: 07 July 2011 15:00
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix Farm performance over WAN

 

You are on a WAN. What's the min/max/avg latency between these sites at the
time that you experiencing these delays?

 

 

 

  _____  

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Angela Smith
Sent: Thursday, July 07, 2011 5:05 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix Farm performance over WAN

 

Hi 

Yes Servers are running Windows 2003R2 x86 with 10Gb RAM

  _____  

From: andrew.wood@xxxxxxxxxxxxxxxx
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix Farm performance over WAN
Date: Thu, 7 Jul 2011 10:50:46 +0100

Whats on the xenapp servers - 2003?

 

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Angela Smith
Sent: 07 July 2011 10:20
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix Farm performance over WAN

 

Great question.  Wish I knew how to troubleshoot it.  Our storage guy says
there are no issues on the NetApp NAS (Unix based I think) so I have to
believe him.  Ive run some perfmon stats on my citrix server and have high
readings for Redirector\Current Commands

Citrix Server
MaxMpxCt is set to 1024
MaxWork Items is set to 4096 

NAS
CIFS MPX is set to 1124

Perfmon results

Redirector\Current Commands: Min 155, Max 246.  Average 170
Server\Work Item Shortages: 0
Server Work Queues\Available Work Items: Min 30, Max 30, Average 30 


Any suggestions on how to tweak server would be muchly appreciated

Regards
Angela

  _____  

From: andrew.wood@xxxxxxxxxxxxxxxx
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix Farm performance over WAN
Date: Tue, 5 Jul 2011 17:27:16 +0100

Depends what your root cause of "SMB bottleneck" if its "back end file
server" its unlikely this configuration is going to help. 

 

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Angela Smith
Sent: 03 July 2011 07:17
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Citrix Farm performance over WAN

 

Hi

We currently have 30 XenApp 5 Servers split between 2 Sites.  Sites are
connected by Gig Links.  At present we use Zone Preference and Failover and
Site A is Active only.  Site B is for Disaster Recovery only.  Site A is
running at around 75% utilisation according to Citrix Load Evaluator.  As
per my previous emails we are having issues with SMB bottleneck.  I am
considering removing Zone Pref and Failover and making Site B active also.
Therefore all XenApp servers get utilised which will half the resource
requirements on my servers and hopefully remove any bottlenecks.

Can anyone see an issue with running with such a config.  XenApp Servers in
site B will need to cross the Gig link to connect to File Server/Web
interface but on a gig link I think should be OK.  Any pro's/con's with this
approach?

Thanks
Ang

 

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