HP Data Protector Operations Guide

Run the following command to determine the layout of the
dcbf directories and files:
• UNIX:
/opt/omni/sbin/omnidbutil –list_dcdirs
• Windows: C:\Program Files\OmniBack\bin>omnidbutil -list_dcdirs
Analyze the output and modify all existing
dcbf directories if they do not meet the above
recommendations, using the following command:
• UNIX:
/opt/omni/sbin/omnidbutil (–modify_dcdir
/var/opt/omni/server/db40/dcbf (–maxsize 32768 (–maxfiles 10000 (–
spacelow 100
• Windows:
C:\Program Files\OmniBack\bin>omnidbutil –modify_dcdir Pathname
[ –maxsize Size_MB ] [–maxfiles NumberOfFiles ] [ –spacelow Size_MB ] [
–seq Number ]
Note: The path here is only an example. You will need to specify the correct path to the
dbcf
directory.
Create at least one new
dcbf directory, unless 10 dcbf directories already exist. For DP 6.1x,
this is automatically done at installation time. It is recommended to create five if possible. Empty
dcbf directories will not negatively impact the performance of the IDB.
/opt/omni/sbin/omnidbutil –add_dcdir -maxsize 32768 –maxfiles 10000 –spacelow
100
Note: This is not required unless you need less than 32 GB, 10000 files. Spacelow 100 MB is
recommended. 32 GB is quite large; the 10000 limit will be reached first, even with 12 or 16GB
of dir sizes.
Set the option
DCDirAllocation to 1 in the global options file on the cell server:
• Unix:
/etc/opt/omni/server/options/global
• Windows 2000/2003/XP:
C:\Program Files\OmniBack\Config\Server\Options
• Windows Vista/2008:
C:\Program Data\OmniBack\Config\Server\Options
This is default in DP 6.1.
This will cause all
dcbf directories to be filled at the same rate instead of one after the other.
38 | Page