Dell PowerVault DL2000 Backup Performance A Dell Technical White Paper Dell PowerVault DL2000 Powered By Symantec Muffadal Quettawala and Scott Reichmanis
Introduction The Dell PowerVault ™ DL2000 – Powered by Symantec Backup Exec is a flexible, cost-effective backup solution for simple, manageable data protection. This whitepaper evaluates the throughput performance capabilities of the PowerVault DL2000 in its two hardware configurations – Value Series and Performance Optimized1.
The maximum backup throughput achieved for each of the three system configurations is summarized in the table below: Configuration End-to-end Effective Backup Throughput for Microsoft Exchange 2007 (GB/hr) End-to-end Effective Backup Throughput for Microsoft SQL 2008 (GB/hr) PowerVault DL2000 Performance Optimized with six (6) GbE ports 1833 2645 PowerVault DL2000 Value Series with six (6) GbE ports 1578 2218 PowerVault DL2000 Value Series with two (2) GbE ports 991 1403 These results provide an
Test Setup The test setup details are summarized in the table below: Backup Solution No.
For the DL2000 - Powered by Symantec Backup Exec, the following additional configuration settings were used when performing backups: • Each backup client system was configured as a separate backup job • The maximum number of concurrent jobs per virtual disk was set to one (1). • Consistency checks and backup verification were disabled on all backup jobs to minimize pre- and post-processing backup times. • For Software Encryption backups, 128-bit AES keys were used.
Results and Analysis The figures below compare the end-to-end backup throughput results obtained for PowerVault DL2000 - Powered by Symantec Backup Exec with Microsoft Exchange and Microsoft SQL clients. The results compare systems with one (1), two (2) and five (5) enclosures for three (3) different backup types - Standard, Software Compression and Software Encryption.
The maximum backup throughput achieved for each of the three system configurations is summarized as follows: Backup Solution Number of Backup client systems Number of MD1000 Enclosures Exchange SQL 3 Throughput Throughput3 GB/hr GB/hr DL2000 Performance Optimized with 6 GbE ports 24 5 1833 2645 DL2000 Value Series with 6 GbE ports 121 2 1577 2218 DL2000 Value Series with 2 GbE ports2 12 2 991 1403 Adding clients beyond 12 reduced throughput due to processor limitations on the DL2000 Value
Analysis by number of GbE ports: For the six (6) GbE port systems the backup throughput was never network limited. For the PowerVault DL2000 Value Series hardware with only two (2) GbE ports, backup throughput rates were network limited in all cases where there were two (2) or more enclosures.
Further Reading Additional information about the Dell PowerVault ™ DL2000 – Powered by Symantec Backup Exec can be found at http://support.dell.com www.dell.com/prosupport/mobility www.dell.
