Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!swrinde!ucsd!ogccse!orstcs!uther.CS.ORST.EDU!osbornk From: osbornk@uther.CS.ORST.EDU (Kasey S. Osborn) Newsgroups: comp.os.os2 Subject: HPFS Message-ID: <13271@orstcs.CS.ORST.EDU> Date: 21 Oct 89 01:32:52 GMT References: Sender: usenet@orstcs.CS.ORST.EDU Reply-To: osbornk@mist.CS.ORST.EDU (Kasey S. Osborn) Organization: Oregon State Univ. - CS - Corvallis, OR Lines: 25 In article dkb@cs.brown.edu (Dilip Barman) writes: >What's HPFS?? HPFS stands for High Performance File System. It is a replacement for the FAT system. Before rev. 1.2, OS/2 had still been using DOS's file system (FAT). HPFS looks a lot like FAT but has extended attributes and extended names. [CAUTION: Writer merging with another thread:] I understand that OS/2 1.2 allows the DosOpen function to specify additional flags for the fsOpenMode parameter. This feature is available only on HPFS partitions. These new flags are advisory - they inform the operating system of the programs intent. They advise the file system of whether the program will access a file randomly or sequentially, for example. This allows the cache system to make informed decisions - extending the efficiency of HPFS. I'm missing FAT already. I suppose if you knew (I don't) what the values of these manifest constants were, a programmer could write code for it now. The next OS/2 Softset should have these goodies, in any case. -Kasey