VDI and Branch Consolidation

VDI, Virtual Desktop, VMware, Consolidation

Should you consolidate branch office desktops to a VDI running at the core datacenter?

Pros:
1. For companies with a single IT staff at the main site, it will reduce the amount of support required at the branch sites.

2. Improves security. You won't have any data residing at the branches.

3. Will allow you to consolidate servers as well - desktops and servers would be co-located, reducing the traditional issues associated with branch consolidation. For example, centralizing file servers results in issues with CIFS traffic across the WAN.

4. You also get your other typical benefits of Virtual Desktop infrastructures such as decreased utility costs, improved disaster recovery preparedness.

Cons:

1. increases the need the WAN control - you'll need to make sure that each desktop gets the bandwidth it needs. Packeteer's Packetshaper has dynamic partitions that will easily support this requirement.

2. WAN latency may result in slower performance. Our lab testing showed that even with a 250msec latency, RDP still provided very good performance. The fact is, RDP is a very efficient protocol and barring any significant packet loss it's unlikely you'll have RDP performance issues. Typically, latency between Eastern US and Western US is somewhere between 50 and 150msec of latency.

There's plenty more to talk about, but this is all I have time for right now.

Read more — Comments (33) — Apr 19, 2008

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Comments

33 Response(s) to “VDI and Branch Consolidation”

  1. matt said on 28/4/08 :

    I'll pose some arguments to my own post... - WAN issues are one reason not to go the VDI / thin computing route. Once you consolidate desktops to the central site you had better make sure your WAN link is solid. In fact, you should probably have dual pipes from different carriers....depending on how critical that branch office is. - another issue is graphics. Some branches might have workstations that require advanced graphics capabilities or quad monitor support. Until RDP becomes more robust, this will remain a gating factor for VDI.

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