Dell EqualLogic Host Integration Tools for Microsoft Edition Version 5.4 Release Notes

If you are uninstalling the version 4.5.0, 4.5.1, 4.6.0, 4.7.0, or 4.7.1 HIT/ME kits on a host that has Exchange servers configured and performing replication (using DAGs), the replications can fail due to an issue with the trim driver. The driver is not updated correctly while open handles to the PS Series group volumes are involved in the replication.

To avoid this issue, suspend all Exchange replication before updating or installing the HIT/ME kit.