[tarunray]

I have SA E200i as embedded controller, SA E500 & SA P400 controllers attched to the machine with Red Hat 5.2.
In /proc/devices, major numbers assigned for cciss controllers as
104 cciss0
105 cciss1
106 cciss2
But only one dev node c2d0 has created in the /dev/cciss.
Since my application, reads these dev nodes & gets the infromation about SA controllers, it is failed to get about SA E500 & SA P400 controllers.

Could you please tell me, when these dev nodes are created? And why it has not been cretaed for rest two of the controllers???

[HROAdmin26]

Since c2d0 is the disk attached to that one controller, it would appear no disks are attached to the other controllers. So no /dev/cciss/c<X>d<y> is created because there is no disk/no need.

I am *guessing* this might not be the best place to find controller info.

[tarunray]

But with same configuration, same machine with Red hat 5.1, these all controllers are displaying through my application.
and c0d0,c1d0 & c2d0 dev nodes has been created under /dev/cciss.

Could u please suggest the best place to find the controller info?

[HROAdmin26]

There must have been a change between the versions then.

You can A) read RedHat's release notes for 5.2 and/or B) read the documentation for the cciss driver.

For controller info - lspci ?