Обсуждение: AW: [HACKERS] RAW I/O device
> Actually, Oracle has been moving *away* from this...more > recent versions > of Oracle recommend using the Operating System file systems, since, in > most cases, the Operating System does a better job, and its > too difficult > to have Oracle itself optimize internal for all the different variants > that it supports.... Actually Oracle has features that only work with raw/io, e.g. parallel server. Once you know how to handle the raw devs they are a lot more convenient than flat files. If you have a 100 Gb + DB raw dev is the only way to go. Andreas
> > Actually Oracle has features that only work with raw/io, e.g. parallel > server. > Once you know how to handle the raw devs they are a lot more convenient > than flat files. If you have a 100 Gb + DB raw dev is the only way to go. > I've seen a 800+ GB Oracle database using filesystem and performing well. But that needs a GOOD filesystem, not something like ext2. Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #========================================= wieck@debis.com (Jan Wieck) #