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- Newsgroups: comp.sys.sun.admin
- Path: sparky!uunet!mcsun!sunic!liuida!isy!lysator.liu.se!pen
- From: pen@lysator.liu.se (Peter Eriksson)
- Subject: NFS mounted swap
- Message-ID: <1431@lysator.liu.se>
- Summary: What exactly is happening when you NFS mount a swap file?
- Keywords: nfs swap mounts
- Sender: news@isy.liu.se (Lord of the News)
- Organization: Lysator Academic Computer Club, Linkoping University, Sweden
- Date: Tue, 21 Jul 1992 12:32:17 GMT
- Lines: 36
-
- Anyone know what a Sun (running SunOS 4.1.1) really does when it NFS mounts
- it's swap partition?
-
- I tried to hook up a Sun 3/80 so that it would boot from a poor little
- Sun 2/120 (with an Intel "ie" ethernet interface) but when it comes down
- to NFS-mounting it's root and swap partitions everythings stops. My guess
- is that the Sun 2 (and it's ethernet interface) is too slow to be able to
- handle the packets transmitted from the 3/80's LANCE ethernet chip.
-
- (We normally have the 3/80 hooked up to a Sun 4/380, but currently the
- Sun 4/380 is sitting in another build and can't be reached directly
- (there is a poor little PC which not can't handle the large NFS pakets
- either on the "network" path to it)).
-
- So I thought.. Why not try to use the HP 9000 Series 300 we have here
- (running HP-UX 8.0) for the root and swap partitions. (It has NFS).
-
- However, it seems SunOS does something strange when NFS-mounting
- (and normally exporting) swap partitions... One exports (in /etc/exports)
- a file and then the Sun client mounts this file and then does some operations
- on it. It doesn't seem possible to NFS-export a file under HP-UX, only
- directories. So my mind begun to wonder....
-
- How does the Sun client really do it?
-
- Another question: Is it possible to reduce the size of the NFS packets
- transmitted for the root and swap partitions? I guess one has to fiddle in
- the kernel since they are mounted before it starts running. But where?
-
- /Peter
-
-
- --
- Peter Eriksson pen@lysator.liu.se
- Lysator Academic Computer Society ...!uunet!lysator.liu.se!pen
- University of Linkoping, Sweden I'm bored. Flame me.
-