Exchange Pre-Deployment Testing
(for sharing hands-on experience in trustworthy computing)
JetstressCmd has an undocumented /report command.
JetstressCmd has an undocumented /report command --- which means this function is unsupported. I...
Date: 05/31/2007
Jetstress quits itself while attaching databases.
Jetstress quits a test run prematurely while attaching databases at the same time. Internally, there...
Date: 05/01/2007
Jetstress: Disk sub-system thresholds
Performance counter thresholds are updated. But, there are some differences from Exchange 2003...
Date: 04/23/2007
Jetstress: Report has all zeros for European numbers.
There is a known issue: Symptom: If you have Standards and formats to be German (Germany) or Dutch...
Date: 04/17/2007
Jetstress: You may receive ESE event ID 215.
This is a known issue in Jetstress. This is so benign that it never affects your testing in terms of...
Date: 03/29/2007
Jetstress: Unevenly distributing users across storage groups.
Question: I have uneven distribution of users across storage groups. Storage group 1 has 700 GB with...
Date: 03/27/2007
Q&A: What do capacity percentage and throughput percentage do?
--- Excerpted from Jetstress CHM help documentation --- There are options to size the test databases...
Date: 03/22/2007
How to pester Error Reporting immediately
- Jetstress or Load Generator would send ‘offline’ Watson reports to the admin queue --- which is...
Date: 03/14/2007
Exchange Server Jetstress (08.01.0075)
Exchange Server Jetstress (08.01.0075) March 7, 2007. Verify the performance and stability of the...
Date: 03/07/2007
Jetstress: How to include your counters in performance log.
Months ago, I got a storage vender's feedback that his job will become a lot easier if he can define...
Date: 03/05/2007
Jetstress 08.01.0075 has fixed a list of issues.
Here is a list of issues that are all fixed in the March release (08.01.0075 build): Exchange 2003...
Date: 02/28/2007
Exchange Load Generator (08.01.0061)
Exchange Load Generator (08.01.0061) February 9, 2007. Perform benchmarking, pre-deployment...
Date: 01/19/2007
Exchange Server Jetstress (08.01.0038)
Exchange Server Jetstress (08.01.0038) January 3, 2007. Verify the performance and stability of the...
Date: 01/19/2007
Q: 20 ms latency is hardcoded?
A: There are two sets of latency thresholds defined in the Jetstress xml configuration file: One is...
Date: 01/15/2007
Jetstress uses Exchange 2003 SP1 ESE Performance counters for NAS storage sub-system.
Jetstress enables "Use storage volumes on NAS" when you Exchange 2003 SP1 ESE binaries (of which...
Date: 06/05/2006
There are risks when you run JetStress where Exchange is installed.
There are two primary risks associated with running Jetstress on a machine with Exchange installed....
Date: 03/22/2006
EVA 5000 and HP BladeSystem Performance Articles
HP Blade System and Exchange 2003 Storage Performance (updated 2006-02-13) White Paper covers the...
Date: 03/06/2006
Algorithm Collection in C++
I have a algorithm collection at https://blogs.msdn.com/hmlee/attachment/541628.ashx. algorithm.htm
Date: 03/01/2006
Bookmarks on microsoft.com
Q200160 How to loop through mailboxes on Exchange by using the GetMailboxTable method
Date: 03/01/2006
RAID, NAS and iSCSI on Wikipedia
Nested RAID https://en.wikipedia.org/wiki/Redundant_array_of_independent_disks RAID 10 (RAID 0 on top...
Date: 03/01/2006
JetStress: List of Known Issues (last updated: Mar. 1, 2006)
JetStress 7795 has the first two issues fixed....
Date: 02/25/2006
ESE Reference and Backup/Restore on microsoft.com
https://msdn.microsoft.com/library/en-us/ese/ese/extensible_storage_engine_reference.asp...
Date: 02/23/2006
JetStress: Tuning process adjusts the operation mix to achieve normal ratios of read/writes.
The tuning process will also try to adjust the following ratios with insert, delete, and replace...
Date: 02/13/2006
Article: Jetstress will not load performance counters after applying an SP or hotfix
Jetstress will not load performance counters after applying a service pack or hotfix There is...
Date: 01/23/2006
Code Snippet: Delegate-based APIs
// Example: Action-based API (class library) public void ChangeItem(PropValue[] propsToSet, params...
Date: 01/09/2006
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...
Date: 12/29/2005
JetStress (WR2.2): Unhandled Exception: Cannot read Instance : F:MDBSG1
I have come across System.InvalidOperationException: Cannot read Instance : F:\MDB\SG1. From memory...
Date: 12/22/2005
Troubleshooting an Exchange Server computer w/ AV software installed
Refer to Q245822 Recommendations for troubleshooting an Exchange Server computer with antivirus...
Date: 12/08/2005
Jetstress: Performance characteristic is more realistic when 80% of the disk capacity is utilized.
Some tests showed that using 70% or 80% of the disk capacity can show the realistic performance...
Date: 10/13/2005
JetStress (WR2.1): There has been confusion about sizing test database.
JetStress (WR 1.2: 06.05.7529.0) --- Calculation is like the following: Planned Data: 750 users *...
Date: 10/12/2005
JetStress (WR2.1) uses Database Page Fault Stall Per Sec.
JetStress (WR2.1) uses Database Page Fault Stalls Per Sec instead of Database disk write latency....
Date: 10/11/2005
JetStress: Database Fault Stalls/sec should be zero on production servers.
Date: 09/06/2005
JetStress: Differences between performance and stress test runs
There are some differences between two test run types (performance and stress): Tuning phase uses...
Date: 08/09/2005
Tip: Office Live Meeting can help live debugging.
Easy Assist https://www.livemeeting.com/cc/easyassist Schedule a meeting or meet now at...
Date: 08/04/2005
JetStress (WR2.1) has updated performance counter thresholds.
Performance counter thresholds are updated. But, there are some differences from Exchange 2003...
Date: 07/22/2005
JetStress (WR2.1) alows multiple disk drives per storage group
JetStressUI (WR2.1) alows multiple disk drives per storage group To reduce the initial test database...
Date: 07/21/2005
JetStress (WR1.2): Where storage hardware cache size is used
JetStressUI 2004 (WR1.2: 6.5.7529.0) uses 'storage hardware cache size' for two places: One is to...
Date: 07/21/2005
Jetstress: How Jet database operation mix works
JetStressUI WinForm application takes Jet database operation mix, e.g. 17 inserts, 68 replaces, 5...
Date: 07/20/2005