aaron kulkis cmiqlkx91hotpopcom kr foley wrote carlos e r wrote wednesday 20080213 1351 0200 dirk moolman wrote sorry let explain using oracle oracle uses filesystems create datafiles example create files like oradata01system01dbf oradata02users01dbf oradata02 new filesystem created points device devsda instead devsda1 partition sda problem dont believe may wrong believe need create single partition devsda1 encompasses entire disk use far know isnt much problem assume space initialized mkfs test write file using entire space disk dd ifdevnull check kernel log also possible write single file device without filesystem raw understand databases diddo entire device problem partition limits overwriting another partition space supposed faster raw devices believe use raw command bind raw device disk partition speed improvement due partition structure raw construct database engine free handle io device rather deal inefficiencieshelp filesystem oracle expects raw block device disk drive raw character device need use raw command slow things tue 05 aug 2008 114350 0500 opensuse use entire disk partition