Pushing Virtual Limits


Running Documentum eRoom 7 in VMware – Notes and tricks
June 9, 2008, 1:41 pm
Filed under: Documentation, vmware | Tags: , ,

Frequently I get asked about how to deploy eRoom in a VMware infrastructure. Some people don’t even know that we fully support VMware (I blame this on the fact that VMware changed its logo to remove the “an EMC Company” subscript).

eRoom is a fantastic application to run in a VM. We fully support VM ESX 2.5-3.5 (2.5 support may fall of the chart soon – see EMC Support Note ESG25111 for the most current supportability matrix).

The problem I have with this basic eRoom v7.4 design and implementation is that so much depends on load and use cases. Lets assume 1,000 licensed users and 2 TB of data. Here is how I would design and deploy this environment:

5 total VMs

2 – Application VM, 1 CPU 2GB ram 20GB hdd- no reservations on RAM or CPU – Server 2003 SP2

1 – Index server/File Server – 4 vCPU, 2GB ram, 2 HDDs (OS on one and file share/indexing data on the second) – There are a few reasons for the multiple CPU count. It should always be N+1 where N = the number of application servers. The primary reason for multiple vCPUs is a VMware defect with their hardware acceleration feature which can cause a problem with the indexing engine.

1 – IRM server – Same as the application server above

1 – SQL 2005 DB Vm (Build per MSFT spec)

This system plan allows the greatest flexibility through the eRoom Advanced feature set. I will write about provisioning at a later date but it is still one of the most impressive features within eRoom.

Given a choice between eRoom in a cluster and multiple eRoom servers there should be no question in the choice to use multiple eRoom servers rather than a cluster. That deserves a post all for itself but the short answer is that eRoom in a cluster provides an active/passive configuration whereas eRoom advanced with multiple web servers provides active/active/active/etc configurations which allow you to truly scale your installation.

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[…] Chris Coyier wrote an interesting post today onHere’s a quick excerptFrequently I get asked about how to deploy eRoom in a VMware infrastructure. Some people don’t even know that we fully support VMware (I blame this on the fact that VMware changed its logo to remove the “an EMC Company” subscript). … […]

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