File System Tree Walk

During runtime, Data Protector creates backup statistics by a first tree walk, which briefly scans the files selected for the backup and calculates its size, so that the progress (percentage done) can be calculated. In a second tree walk, the data is written to the backup device.

Note: If millions of small files are backed up, the first tree walk could take considerable time and increase the overall runtime. The tree walk can be disabled by setting “NoTreeWalk=1” in the configuration file “<Data_Protector_home>\omnirc”.

HP StorageWorks SDLT 320 Tape Drive

The SLDT 320 tape drives are configured with default values.

Figure 12. HP StorageWorks SDLT 320 Tape Drive – Test Environment

Advanced Backup to Disk

SDLT320 Tape Drives

Primary Disk Array MSA1000 with 14 x 146GB/10K disks

configured as RAID1+0, 8 x 100GB LUNs configured

Secondary SATA-based Disk Array MSA1500 with 12 x 250GB/7.2K disks

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Backup to Secondary

 

 

 

 

 

 

 

Array

 

2 Gigabit Fibre Channel

 

 

Backup to Tape

 

 

 

 

 

 

 

from Secondary Array

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HP ProLiant DL380G4

 

HP OpenView Storage

HP StorageWorks SDLT320

3.2 GHz, 4GB RAM, 2 CPUs

 

Data Protector 5.5

 

Tape Drives

 

 

 

 

 

 

 

Ultra2 SCSI

March 2005

Data Protector 5.5 - Advanced Backup to Disk Test Plan

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