HP B6960-96035, Руководство по концепциям

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Specifics for large cells
If the number of files grows into the tens of millions, or there are tens of thousands
of files generated on a daily basis, and you use the
Log All
option, then backup
speed and IDB growth will become a problem in a relatively short period of time. In
this situation, you have the following options:
• Reduce the logging level to the smallest acceptable level. Setting the
Log Files
option can reduce the IDB size to a third, and setting the
Log Directories
option to almost a tenth. This, of course, depends on the nature of the file systems
in the cell.
• Reduce the catalog protection to a minimum.
• Split the cell in two. As a final solution, you can always introduce another IDB
and redirect half of the systems into it.
You can configure
Report on System Dynamics
, which informs you about
dynamics of the growth of filenames on a particular client.
IDB size estimation
If you mainly perform filesystem backups, the IDB can grow to a significant size
(larger than 16 GB) under certain conditions. If you perform disk image or online
database, it is very likely that your IDB will not grow beyond 2 GB.
To estimate the size of the IDB use the Internal Database Capacity Planning Tool
located at:
• On the UNIX Cell Managers:
/opt/omni/doc/C/IDB_capacity_planning.xls
• On the Windows Cell Manager:
Data_Protector_home\docs\IDB_capacity_planning.xls
You can also use this tool to estimate the size of the IDB in environments with online
databases (Oracle, SAP R/3).
Concepts guide 203