The following table lists the default timer jobs for Windows SharePoint Services 3.0.
|Timer job title||Description||Schedule type|
CEIP Data Collection
Gathers farm data for the Customer Experience Improvement Program.
Documents changes to sites and pages in the Web application since the last time that the timer job was run.
Updates SQL Server query optimization statistics for content databases. This job was updated significantly in Windows SharePoint Services 3.0 with Service Pack 2 (SP2) to also rebuild database indexes. The job performs the following tasks:
Daily, between 22:00:00 and 05:00:00
Dead Site Delete
When auto site cleanup is enabled, it deletes sites that have not been used in a certain period of time.
Disk Quota Warning
Looks for sites that have exceeded the storage quota.
Sends out immediate and scheduled alerts.
Looks for content in the Recycle Bins and moves it to the next stage or deletes it.
Processes the logs and aggregates usage data for each site.
Processes workflow events that are in the scheduled items table, such as delays.
Workflow Auto Cleanup
Deletes tasks and instances in the workflow instance table for workflows that have been marked completed more than n days in the past, where n is specified in the workflow association. Crawls through tasks and the workflow instance table.
Processes events for workflows that have failed and are marked to be retried.
Site Collection: Delete
Added in the April Cumulative Update to perform gradual deletion of site collections. When an operation uses gradual deletion, a site collection is immediately marked as deleted, which prevents any further access to its content. The data in the deleted site collection is then deleted gradually over time by this timer job instead of all at once, which reduces its effect on Windows SharePoint Services 3.0 and SQL Server performance. Gradual deletion is available in the stsadm -o deletesite and stsadm -o mergecontentdbs operations.