• SharePoint Portal Server 2001 (“Tahoe”) ran on top of the Exchange Server 2000 Web Storage System …but only for that initial release.
• Co-released with “Tahoe” was Windows SharePoint Services (WSS), a free downloadable component of Windows Server 2000, that used SQL Server for its document and metadata store.
• SharePoint Server subsequently migrated to use WSS as its “kernel” for the Microsoft SharePoint Server 2003 release.
• As an internal Microsoft Consulting Services EC3 consultant, I worked for the SharePoint product group with the responsibility for developer, partner, and MS field readiness.

Very interesting/heady times back then for storage.

To read more, check out:

• https://www.linkedin.com/feed/update/urn:li:activity:6781414485497405441/
• https://hyperonomy.com/2021/03/26/microsoft-sharepoint-products-and-technologies-20th-anniversary-celebration/