Today, we updated both the Exchange 2007 and Exchange 2010 Mailbox Server Role Requirements Calculators. For the Exchange 2007 calculator, the changes were minor (bug fixes essentially). Head on...
Updated Jul 01, 2019
Version 2.0
Blog Post
All,
Two Questions - one on this calculator, and one on JetStress
(Question 1) JetStress 2010 Beta (Exchange Perf) - Number of Mailboxes
(feedback on the Jetstress 2010 post is request, but not allowed, sorry for posting here)
When specifying the "number of mailboxes" in an Exchange 2010 performance test, what should that number be?
Do you enter the "total mailboxes per server", or the "mailboxes per database on that server". The Jetstress Help file is unclear on this, as well as online help, and various postings searched on JetStress 2010.
It seems that JetStress 2010 multiplies the "number of mailboxes" (ex: 2,125) by project IOPS (ex: 0.2) and expects 425 IOPS "per database LUN" from what I observed in the test run. How does that input translate to load distributed in the test?
I'm guessing getting this question wrong is a complete rerun of the test scenario - because target IOPS is wrong, latencies will be higher because the load per db was wrong... so run the tests all over again?
(Question 2) Can we get a writeup on the links between the info in the E2010 Mailbox Sizing calculator, and JetStress 2010?
Would like ability to take sizing calculator report and translate that into an XML file to feed to JetStress 2010 on an E2010 server for test run. That way, what I projected in calculator estimates and build for production can then be accurately tested and validated. [with caveats to storage diffs, etc]
These tests take a LONG time to run. Signing up for a 4 hour maibox perf run on 8 servers could take 10 to 14 hours total between prep, setup, shutdown, cleanup and return to service.
Thanks