In the original release version of Exchange 2003, the virtual memory that is allocated to the Jet database cache is allocated as "mapped bytes." However, in Exchange 2003 SP1, the virtual memory that is allocated to the Jet database cache is allocated as "private bytes." Therefore, the memory size that is reported as used by the Store.exe process is dramatically larger in terms of "private bytes." For example, an Exchange computer that has about 4 gigabytes (GB) of RAM might report an increase of about 900 megabytes (MB) of private bytes memory after you install Exchange 2003 SP1.
Note This does not mean that the Store.exe process uses additional memory. The memory is just reported differently in Exchange 2003 SP1.
Typically, this only affects programs that monitor memory private bytes. These programs may generate an alert after you install SP1 if the additional private bytes memory that the Store.exe process uses exceeds a configured threshold.
Note The Exchange 2003 Management Pack for Microsoft Operations Manager has been updated to account for this Exchange 2003 SP1 memory allocation change. For information about how to obtain the Exchange 2003 Management Pack for Microsoft Operations Manager, visit the following Microsoft Web site:
- Click Start, and then click Server Management.
- Expand Standard Management, and then click Monitoring and Reporting.
- Click Change Alert Notifications, and then click the Performance Counters tab in the Alert Notifications dialog box that appears.
- In the Name list, click store.exe private bytes STORE, and then click Edit.
- In the Change threshold to box, type a new threshold value that is greater than the current value and that does not trigger a Small Business Server 2003 critical alert.
- Click OK two times.
Article ID: 867628 - Last Review: 29 Mar 2017 - Revision: 3