HP StorageWorks 1500cs HP StorageWorks Mezzanine Backup-Restore Solution - Page 11

Synergy of components This solution uses proven, customer-accepted, fault-tolerant technology with the option to add additional system and data reliability. There is no new technology to learn; it has the look and feel of primary storage. Implementing a mezzanine backup-restore solution adds flexibility and performance to an existing data protection system. Using this solution in concert with existing backup tools, high-priority data can be backed up and later restored without having to wait on tape mounts. In addition, the new backup resources made available allow existing backup resources to support greater demands for storage and speed. Tape libraries continue to play a vital role by providing data archiving and retention capabilities. These capabilities are critical to meet the growing requirements businesses face for retaining business information. They also play an essential role in disaster recovery and in making systems disaster tolerant. Table 1 describes three scenarios to better meet data protection requirements when using mezzanine storage. Table 8. Scenarios for the mezzanine backup-restore solution Scenario description Backup window impact Restore time impact Full and incremental backups to MSA1500; offline backup to tape Backup window reduced as additional backup resources are available Improved reliability from RAID-protected storage Instant access for single file restores Weekly full backup to tape, daily incremental backups to MSA1500 Full and incremental backups to MSA1500 (not recommended for a full data protection solution) Backup window reduced as additional backup resources are available More frequent backup for frequently changing data, without changing media Multi-stream host backups to disk reduce the backup window Instant access for single file restores Improved reliability from RAID-protected storage Instant access for full or file restores Improved reliability from RAID-protected storage Best used for Operations with a fixed backup window requiring all applications to be backed up at one time Business-critical data with zero tolerance for tape error handling Large sets of data requiring frequent file restores Notes More efficient use of backup window Tape resources can be used more hours per day Less administration required for frequent incremental backups Large backup window needed for weekly full backups to tape Business requires high data reliability and instant data recovery over short periods of time Requirement of additional processes for disaster recovery and any required data archiving or retention 11