>>> On 11/26/2008 at 5:34 PM, "Eatherly, John D [EQ]" <[EMAIL PROTECTED]> wrote: > I am not positive that it will work. But this is what was passed to us for > doing this. > > Make Swap File Procedure and Activate: > 1. There are three different types of swap files. > (a.) Swap space on a ramdisk. > (b.) Swap space on a partition. > (c.) Swap file. > 2. It is recommended that we use (c.) Swap file. IBM RedBook "Linux > for S/390" chapter 10.3.4.3 has the procedure that I used.
Back when that book was written (2000) that would have been a good recommendation. (By the way, for those of you that have the expurgated version, the chapter would be 9.3.4.3.) That was before we had the ability to create multiple partitions on DASD volumes, and real storage was even more expensive than it is today. These days, having your paging going to a swap file within a file system would be, as Rob likes to characterize it, good only for slowing your Linux system down. Current recommendations vary according to what hardware resources you have. Best performance is gained by using VDISKs driven by the DIAG flavor of the DASD driver in Linux. After that, xpram disks carved out of expandaed storage, then CMS minidisks, or partitions on a full DASD volume. Swap files on a Linux file system would be just about dead last in preference. Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
