EXHIBIT 10.21 VOTING TRUST AGREEMENT THIS VOTING TRUST AGREEMENT, dated as of , 2000 (this "Agreement"), by and among United States Trust Company of New York, as voting trustee (together with any successors, the "Voting Trustee"), GS Capital Partners...Voting Trust Agreement • June 29th, 2000 • Storagenetworks Inc • Services-business services, nec • Delaware
