HP Data Protector Software Performance White Paper

HPCreateData .................................................................................................................................... 20
HPReadData ....................................................................................................................................... 22
LoadSim 2003 ..................................................................................................................................... 22
Test data ..................................................................................................................................................... 24
Data creation tools .................................................................................................................................. 24
Creating typical files for Windows NTFS ................................................................................................. 26
Creating typical files for HP-UX VxFS ..................................................................................................... 27
Creating millions of small files for Windows NTFS .................................................................................. 28
Creating millions of small files for HP-UX VxFS ...................................................................................... 29
Creating data for Microsoft Exchange Server 2003 ................................................................................ 30
Evaluating tape and disk drive performance ............................................................................................... 31
Tape write and read performance ........................................................................................................... 31
Disk write performance ........................................................................................................................... 35
Disk read performance............................................................................................................................ 36
Evaluating Data Protector performance ...................................................................................................... 37
Data Protector configuration ................................................................................................................... 37
HP StorageWorks Ultrium 960 tape drive configuration ...................................................................... 38
File system tree walk .......................................................................................................................... 38
Data Protector IDB considerations .......................................................................................................... 39
Backup of typical and small files ............................................................................................................. 40
Local backup of typical files ................................................................................................................ 41
Local backup of small files .................................................................................................................. 42
Network backup of typical files ............................................................................................................ 43
Network backup of small files ............................................................................................................. 44
Restore of typical and small files ............................................................................................................ 45
Local restore of typical files ................................................................................................................. 45
Local restore of small files .................................................................................................................. 46
Network restore of typical files ............................................................................................................ 47
Network restore of small files .............................................................................................................. 48
Backup and restore of Microsoft Exchange Server 2003 ........................................................................ 48
Data Protector configuration parameters ............................................................................................ 48
Local backup of Microsoft Exchange Server 2003 .............................................................................. 48
Local restore of Microsoft Exchange Server 2003 .............................................................................. 49
Tuning Data Protector performance for typical files .................................................................................... 49
Backup options ....................................................................................................................................... 49
Load balancing ................................................................................................................................... 49
Software compression ........................................................................................................................ 50
IDB logging level ................................................................................................................................. 54
Detect Windows NTFS hardlinks ........................................................................................................ 55
Use native Change Log Provider ........................................................................................................ 56
Asynchronous reading ........................................................................................................................ 59
Device and media options ....................................................................................................................... 62
Concurrency ....................................................................................................................................... 62
Cyclic redundancy check (CRC) ......................................................................................................... 66
Block size ............................................................................................................................................ 68
Segment size ...................................................................................................................................... 68
Disk Agent buffers .............................................................................................................................. 71
Hardware compression ....................................................................................................................... 73
Tuning Data Protector performance for Microsoft Exchange Server 2003 .................................................. 74
Tuning recommendations ........................................................................................................................... 77
Appendix A. Reference documentation....................................................................................................... 79
HP documents and links ......................................................................................................................... 79
Microsoft documents and links ................................................................................................................ 79
Glossary ...................................................................................................................................................... 80
For more information................................................................................................................................... 82