Microsoft Exchange Server Jetstress is a tool that administrators can use to validate their Exchange Server storage configuration.
Appearing in multiple versions of Exchange Server, Jetstress simulates a storage load like an Exchange Server does when it is in production. Jetstress will verify a disk's performance from simulating the disk's I/O, specifically the log file loads and the Exchange database a specific number of end users produce. Jetstress monitors how the storage performs and uses measurements with the parameters admins define. Results from running Jetsress appear as pass/fail.
Microsoft recommends that admins wait to run their Exchange Server configurations until they have the chance to run Jetstress and until they receive a "pass" result.Content Continues Below
The current version of Jetstress is Jetstress 2013, which was released in conjunction with Exchange Server 2013. Microsoft says this version is similar to JetStress 2010, but it has a few key differences:
- Single I/O errors now fail the test
- Final reports now show the amount of errors per volume in a new section because errors are now logged in the volume they occurred
- If cyclic redundancy check (CRC) errors occur, Jetstress now simulates the same kind of behavior as an Exchange Server patching pages ("page patching")