Path: utzoo!mnetor!uunet!husc6!think!ames!ptsfa!ihnp4!cbosgd!osu-cis!tut!mumble!karl From: karl@mumble.cis.ohio-state.edu (Karl Kleinpaste) Newsgroups: comp.os.misc Subject: Re: OS features Message-ID: <3228@tut.cis.ohio-state.edu> Date: 15 Dec 87 19:26:17 GMT References: <561@amethyst.ma.arizona.edu> Sender: news@tut.cis.ohio-state.edu Distribution: na Lines: 19 In-reply-to: chris@spock's message of 15 Dec 87 04:50:33 GMT chris@spock writes: Mark Woodruff writes: > o Contiguous file allocation on large devices. The additional overhead > of discontiguous file allocation is unwarranted on modern hardware. One of the features of AOS/VS (Data General) that I like is its variable element size. Files are made up of elements of a given number of blocks. For example, if a file's element size is 10 blocks, the file will grow in chunks of 10 blocks at a time... ...I haven't seen this feature on any other operating system. Has anyone else? Computer Consoles, Inc's PERPOS of a couple of years back supported contiguous file creation. You had to give it the total size of the file required, as I recall, no file growth once it's created. PERPOS (a fault-tolerant UNIX derivative) was intended for a heavy transaction-oriented system, which made this sort of use important. -=- Karl