We just upgraded to RHEL 6.7 and are not able to create raw devices, seems the rawctl control file is missing. We did the modprobe and init scripts, and tried to start the raw service, but no luck.
Is there a way to create the rawctl file?

You can create the device with:
mknod /dev/raw/rawctl c 162 0

The raw devices other than that would typically be configured in udev.

However, raw devices are deprecated in Linux. What exactly are you trying to do that makes you think you need rawctl?

The deprecation was retracted from what I read on the net.
We use RAW devices to support a 2Tb database which is in a clustered configuration on 2 hosts. The LUNs have been presented to both hosts and the database software is aware of how to manage the clustering internal to it's datastores, which have been setup as RAW devices for the past 5 years.

Interesting - I hadn't seen the retraction before looking today but it appears you're correct.

Anyway as indicated you can create the rawctl with the mknod command. The 162, 0 (major minor) seems to be pervasive on most distros for this device and specifically what I see on my RHEL6 installations even though I don't use it.

Is this Oracle RAC/GRID? We have that (which is what we formerly used raw devices for in RHEL3 to RHEL5) but starting with RHEL6 we did an alternate setup using ASM as it supports O_DIRECT. (ASMLIB wasn't precompiled for RHEL6 at it had been for RHEL5 so we didn't use it - just ASM.)

No, it's a Sybase IQ column store running on a pair of HP DL 380 boxes. We are using VMax storage from EMC.
The mknod command did the trick. Thanks

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