Such was the contingency plan for Banco Santander Central Hispano International, a Spanish financial institution with U.S. headquarters in Miami, which for six years made do with daily tape backups. Unfortunately, since Sept. 11, 2001, hurricanes arent the only fear in South Florida.
"With the advent of terrorism, we decided we might not get the chance of having that many days of warning that something may happen," said Augustin Abalo, vice president and CIO of Banco Santander and president of the Florida International Bankers Association.
Tape backup may be fine for most businesses, but for a worldwide bank that handles $1 billion in transactions a day, an hour of downtime could mean a loss in the tens of thousands of dollars.
In addition, failure to meet data restoration requirements brings about intangible costs such as the risk to the banks reputation and the risk of violating federal guidelines. "We needed to be able to immediately continue processing even if we had to abandon our premises," Abalo said.
Abalos concern coincided with new guidelines created by the Securities and Exchange Commission. To strengthen the resiliency of the financial services industry, the SEC strongly recommends that banks distance their primary places of business from contingency sites and ensure that personnel are available should the primary sites go down.
Two years ago, Banco Santander went looking for an application that could make continuous processing available at both its production site (Miami) and contingency site (New York). Banco Santander wanted to eliminate the need to courier tapes as well as the daily intervention of an engineer.
Prior to 1999, SANs (storage area networks) were the only game in town for true data replication. But SANs often came with limitations, such as vendor lock-in for both primary and secondary sites.
For Banco Santander, constrained by its budget and connected by a WAN to its contingency site 1,300 miles away, a SAN was not an option. It was costly to deploy and required a dedicated connection and a physically close secondary site.
In addition, synchronous replication over a WAN would hurt the performance of financial processing applications.
Along came Veritas Software Corp.s server-based replication solution, Volume Replicator, which eliminated many constraints inherent in SANs. With Volume Replicator, data could be copied across dissimilar devices from different vendors. A dedicated connection was not required, since data could traverse over IP. Today, forced proprietary protocols are no longer a requirement for SANs.
Most beneficial for Banco Santander was Volume Replicators ability to quickly duplicate data at great distances over the companys WAN. This was possible due to the use of asynchronous replication. Unlike synchronous replication, asynchronous replication copies data to the second source without freezing the application at the primary location.