JetStress (WR2.1): 9000 log buffers became the default for Exchange 2003.

To correctly set the JET_paramLogBuffers value, JetStress uses the following information For Exchange 2000, Exchange 2000 SP1, Exchange 2000 SP2, or Exchange 2000 SP3, set the value to 512. For Exchange 2003, Exchange 2003 SP1, or Exchange 2003 SP2, set the value to 9000. Reference: ESE log buffers that are set too low can cause the Information Store…

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JetStress (WR2.2): Unhandled Exception: Cannot read Instance : F:MDBSG1

I have come across System.InvalidOperationException: Cannot read Instance : F:\MDB\SG1. From memory dump analysis with the .NET perf. team, the main cause was either one of these: Some logical disks are not fully ready to use in the Windows PDH library. Something went wrong in the .NET perf. library (maybe thread-safety issues). See the following example: 12/22/2005 9:32:10 AM — Start tuning…

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