Back in April, I posted an article where I recommended that you install the latest CU for SQL 2005 (CU7).

Since then, I’ve recieved feedback regarding some issues introduced by this CU. It would appear that they are more of an issue than I originally thought. Based on this feedback, I’m going to recommend that you all stick with CU6 for the time being.

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At a previous client, I encountered an issue where, when creating or viewing certain views in Data Analysis, the Analysis Services service would spike in processor/memory utilization and become unresponsive.

I have recently discovered that this is a known issue in environments that have an interaction between Office Web Components and SQL Server 2005 Analysis Services with Service Pack 2 (which means Project Server).

Although I’m not 100% sure, I believe the KB that covers this issue is KB936251. The symptoms seem to fit.

At any rate, I have been told that the resolution was included way back in SQL Server 2005 Cumulative Update 2. I recommend that you install the current CU, which is CU7, due to the number of fixes it contains. UPDATE: I’ve recieved information that CU6 is a better choice due to some issues introduced by CU7. I’ve posted a followup article here.