Creating raw partitions in RHEL5 for 10.2 CRS

Question

Hi all,
I have a few questions about creating multipath raw partitiions in RHEL5. I'm aware that raw is deprecated in RHEL5 and I have read a number of articles published by Oracle on how to utilize udev rules and rc.local to create and set permissions on raw devices in RHEL5. I've had some success binding the raw devices but they do not seem to appear in the designated directory...
ex.)
[root@hostc ~]# /bin/raw /dev/raw/raw1 /dev/mapper/mpath4p2
/dev/raw/raw1: bound to major 253, minor 30
[root@hostc ~]# raw -qa
/dev/raw/raw1: bound to major 253, minor 30
[root@thdalnu3 ~]# ls -ltr /dev/raw/raw1
ls: /dev/raw/raw1: No such file or directory
Wouldn't I expect to see the raw1 device in the /dev/raw direcotry???? There's no /dev/raw directory at all. I tried creating a raw directory in /dev/ and that did not resolve the issue either. Any thoughts?
Thanks,
-Rich

Answer 1

I manually created the "/dev/raw" directory and then created the raw device:
# /bin/mkdir /dev/raw
# /bin/raw /dev/raw/raw1 /dev/hda1and got the {font:Courier}/dev/raw/raw1{font} device I expected. After a reboot the {font:Courier}/dev/raw{font} directory will disappear but a UDEV rule will recreate it. Since raw devices are deprecated, the {font:Courier}/dev/raw{font} directory is your responsibility; you could just as easily (and correctly) place these raw devices anywhere.