Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!sdrc!cinnet!eric
From: eric@cinnet.com (Eric Bardes)
Newsgroups: comp.databases
Subject: Re: Informix queries: raw partitions, price support
Message-ID: <1991Apr26.222142.20975@cinnet.com>
Date: 26 Apr 91 22:21:42 GMT
References: <461@octelb.octel.UUCP>
Organization: Cincinnati Network, Cinti. OH
Lines: 31

From article <461@octelb.octel.UUCP>, by jfd@octel.UUCP (John F. Detke):

>        How do other sysadmins handle raw partition access?

My company sets up raw devices under the directory $INFORMIXDIR/dev.
We generally name the devices using the space name.  That is:

cwr-wr--- 1 informix    informix    12  0x00030a  04:00:13 rootdbs.1
cwr-wr--- 1 informix    informix    12  0x00040a  04:00:13 rootdbs.2
cwr-wr--- 1 informix    informix    12  0x000407  04:00:13 dbs1.1
cwr-wr--- 1 informix    informix    12  0x000307  04:00:13 dbs1.1

This keeps Informix out of our /dev directory.  Also if I loose a disk
for whatever reason.  It is easy to install a new drive into the old
filename.

>                         Informix wants to chmod and chgrp informix /dev/rsd0d
> in order to use raw partitions. Why the heck do they have set-uid root
> programs then?

Some processes, such at sqlturbo run setuid to informix.  The real uid
remains at joe_user.  Sqlturbo needs to be able to read and write these
raw partitions.

Hope I was able to help.
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Eric E. Bardes
7651 Cornell Rd
Cincinnati, OH  45242-3015
uucp: cinnet!eric
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