Aslinac.15 net.unix-wizards utcsrgv!utzoo!decvax!ucbvax!ihnss!houxi!npois!harpo!utah-cs!slinac!mcalpine Tue Feb 16 14:35:01 1982 Decreasing Disk Seek Times I have been giving some thoughts too minimizing the average seek times on our 80 mbyte drives. I have to run with a single file system mounted on each drive and I am using version 7 UNIX. As the disks have slowly filled over a period of time one finds that the currently used file blocks have tended to become clustered as far away from the inodes as possible. This is caused by physicists wanting to leave data on the disk for as long as possible ie until old age, death or no disk space occurs. What I would like to do is produce a disk seek minimizer which would move file blocks of little used files towards higher block numbers based on some function of last access date, file size, current blockno distribution etc. Has anyone any suggestions or even better some code which they would be willing to share which does this job. John McAlpine Saskatchewan Linear Accelerator Lab. ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.