First installation.

Hi, we are new users of informix and we don't know the right step to install informix on linux system. The principal questions is when do we have create the raw disk space? It is must created before install informix server or Informix will create this. Thank in advance.

Raw-devices are not supported in the Linux 9.20.UC1 release because of Linux limitations. This is documented in the release notes file IDS_9.2. Product installation currently does not intialize the instance for you. That is achieved via oninit or onmonitor You will need to use cooked files under linux. touch /l/rootdbs chmod 660 /l/rootdbs chown informix /l/rootdbs chgrp informix /l/rootdbs You need to edit the $INFORMIXDIR/etc/$ONCONFIG file and change the ROOTPATH to point to /l/rootdbs. Actually, for a first time installation, you should set your env variables and then walk though onmonitor. export INFORMIXDIR=/opt/informix export INFORMIXSERVER=hostname_shm0 export ONCONFIG=onconfig.hostname_shm0 export PATH=$INFORMIXDIR/bin:$PATH $ vi $INFORMIXDIR/etc/sqlhosts hostname_shm0 onipcshm hostname mustang_shm0$ cp $INFORMIXDIR/etc/onconfig.std $INFORMIXDIR/etc/$ONCONFIG $ onmonitor -->parameters-->intialize Tab through each field and you should get errors on things that are not right. After its up, run dbaccess. Regards, Ray Siu Guarani wrote: > Hi, we are new users of informix and we don't know the right step to install > informix on linux system. > > The principal questions is when do we have create the raw disk space? > > It is must created before install informix server or Informix will create this. > > Thank in advance.

Siu Guarani wrote: > > Hi, we are new users of informix and we don't know the right step to install > informix on linux system. > > The principal questions is when do we have create the raw disk space? > > It is must created before install informix server or Informix will create this. RAW devices can be created anytime before you try to use them in onspaces or onmonitor, either before software installation or later. Note that unless you are using RedHat Enterprise Edition or have added the new Linux Raw Device Support module yourself there ARE NO RAW devices in Linux yet. The 2.2.x kernel supports the module on an experimental basis and it is part of the 2.3.x development kernel officially so it will be part of the 2.4.x production kernel when released. Art S. Kagel

The raw disk space is just an empty partition. Linux only allows cooked (block) access to empty partitions. Ray Canuel <rayc@informix.com> writes: > Raw-devices are not supported in the Linux 9.20.UC1 release because of Linux > limitations. > This is documented in the release notes file IDS_9.2. The "limitation" is that the current, stable kernels on the RedHat distribution used for the Informix port doesn't support raw (character) disk devices. Linus argued long and hard that the buffering was so danged good that a raw device would show negligible improvements (I read that as being nowhere near the 10% to 15% traditionally shown on Unix systems). It is rumored that the 2.4 kernels will have raw device support. So, until Informix does a linux port on a RedHat distribution that supports raw devices, we won't know whether Linus was right about the quality of the buffering. -- Forte International, P.O. Box 1412, Ridgecrest, CA 93556-1412 Ronald Cole <ronald@forte-intl.com> Phone: (760) 499-9142 President, CEO Fax: (760) 499-9152 My GPG fingerprint: C3AF 4BE9 BEA6 F1C2 B084 4A88 8851 E6C8 69E3 B00B

"Art S. Kagel" <kagel@bloomberg.net> writes: > RAW devices can be created anytime before you try to use them in onspaces > or onmonitor, either before software installation or later. > > Note that unless you are using RedHat Enterprise Edition or have added the > new Linux Raw Device Support module yourself there ARE NO RAW devices in > Linux yet. The 2.2.x kernel supports the module on an experimental basis > and it is part of the 2.3.x development kernel officially so it will be part > of the 2.4.x production kernel when released. Has anyone tried IDS 9.21 against a 2.4.0-testX kernel? -- Forte International, P.O. Box 1412, Ridgecrest, CA 93556-1412 Ronald Cole <ronald@forte-intl.com> Phone: (760) 499-9142 President, CEO Fax: (760) 499-9152 My GPG fingerprint: C3AF 4BE9 BEA6 F1C2 B084 4A88 8851 E6C8 69E3 B00B