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Article #10310

swap on nd and local disk (was Re: 3.2 server with 3.4-5 clients?)

#10310
From: Dinah Anderson
Date: Mon, 16 Jan 1989 05:01
27 lines
1760 bytes
>>I have discovered that you cannot swap local and have the root in an nd
>>partition.  If you do not have some swap space in an nd partition then at
>>boot time it cannot mount the root.  Is there a solution to this problem?

>Sun told me to just make an nd swap with a zero size.  Then swap on both
>nd and your local disk.

>I have not tried this.  (By the time I got my answer back from the
>Software Hotline I had already loaded my disk with a root and /usr also.
>Sigh...)

We HAVE tried it. We found that your nd root at to be > 0. I believe that3
3 Mb was the magic number. I would be interested in knowing if someone has
made this work with less.

I would also like to know how the swap actually works when you have 2 swap
devices and the first one is very small and the 2nd much larger.  Does the
systems use 1 MB of the first and then 1 mb of the second, etc.  until the
first 1 is full? Then does it use the 2nd swap device exclusively or does
it continue to check the first device?

I am working under the assumption that the system is interleaving the swap
in 1 mb pages. 

Dinah Anderson 
Shell Oil Company, Information Center (713) 795-3287
...!{sun,psuvax,soma,rice,ut-sally,ihnp4}!shell!dinah
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!lll-winken!ames!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: dinah@shell.UUCP (Dinah Anderson)
Newsgroups: comp.sys.sun
Subject: swap on nd and local disk (was Re: 3.2 server with 3.4-5 clients?)
Message-ID: <8901111450.AA26078@dogwood.IC.shell.com>
Date: 16 Jan 89 05:01:18 GMT
Sender: usenet@rice.edu
Organization: Sun-Spots
Lines: 27
Approved: Sun-Spots@rice.edu
Original-Date: Wed, 11 Jan 89 08:50:38 CST
X-Sun-Spots-Digest: Volume 7, Issue 105, message 14 of 22