Re: Informix v6.0, SCO & Raw Partition

Mike Segel <mikey@segel.com> wrote: >GoRdoN wrote: >> >> Has anyone tried using SCO Unix Open Desktop v3.0 and Informix Online >> v6.0, and installing Informix to access a raw device database? >> >> Is there any more specific information as to how to go about doing >> this, like defining a raw device and allocating it to Informix, etc.? >> >> Regards. >GoRdoN, >[Geez, why not Gordon?] >All one must do is create a link to I believe /dev/rdsk/[Device Name] >And set the owner and group permission to informix. >You may have to use the -h option on ln. >Now, this is all in the manual, but it could be /dev/dsk. >Being blind stinking drunk and its 1:40 am, I may be wrong since >I can't read at this time. ;-) >[Ok, so I'm not drunk, just lazy.] You use the divvy utility to create the raw partitions, and make sure you do *not* create a file system on the disks/parts of disk where you want your database. In our case the devices got named in divvy and ended up in /dev as: /dev/rd115x, /dev/rd125x and so on for each disk. (Make sure you use the rd.. devices, not the once that start with only d.) There is no mention in any manual I know of that this is what you are supposed to do to create the raw devices. You have to infer it from the SCO documentation on the divvy utility. Also the device names in SCO for disks is a jungle, and I think they are dependent upon the type of disk (IDE or SCSI). Make sure you have SCSI disks or you may get bad performance as you add users and the database size grows. These device names where on SCSI disks. The above mentioned device names are the ones we created links to. As we put these linked filenames in the /dev-directory we didn't need any options to ln. Informix says to create symbolic links, but I don't know any reason to do that as long as you are in a reasonably simple environement on SCO. By the way, you do want to upgrade very soon to SCO version 5 and Informix OnLine version 7.xx. If not you'l soon run into bugs that can't be resolved. Nils.Myklebust@ccmail.telemax.no NM Data AS, P.O.Box 9090 Gronland, N-0133 Oslo, Norway My opinions are those of my company