topic Re: RHEL5 and /proc in Operating System - Linux

RHEL5 and /proc

ossupport55 — Wed, 15 Jul 2009 04:18:15 GMT

Dear all,

how far is it true that RHEL5 does/should not use /proc based device manipulation.
In other words, we should use /sys based manipulation for FC related devices. Correct ?

cheers

Re: RHEL5 and /proc

Michal Kapalka (mikap) — Wed, 15 Jul 2009 04:30:23 GMT

hi,

on our Centos 5.2 == RHEL 5.2,

the fc manipullation is in /sys

/sys/class/fc_host

host*/

for example :

/sys/class/fc_host/host3/device/scsi_host:host3

mikap

Re: RHEL5 and /proc

Matti_Kurkela — Wed, 15 Jul 2009 05:26:35 GMT

The drivers included into Linux kernel tend to use /sys, but some external driver packages (e.g. the HP-packaged QLogic HBA driver) may still use /proc.

If the thing you wish to manipulate exists within /sys, use it; else use /proc as before.

MK

Re: RHEL5 and /proc

ossupport55 — Wed, 15 Jul 2009 11:08:14 GMT

Thanks guys for the replies.

Well, what i was baffled was the new implementations of RHEL5, qlogic driver actually does stuff through /proc. Should i use that or is it safe for me to use the inbox driver?

Since i'm planning to use fibreutils what is recomended ?

cheers folks

Re: RHEL5 and /proc

Michal Kapalka (mikap) — Wed, 15 Jul 2009 11:09:38 GMT

hi,

i think it's up to you.

mikap

Re: RHEL5 and /proc

Steven E. Protter — Wed, 15 Jul 2009 11:27:30 GMT

Shalom,

I would simply install drivers and use their default location. /proc is aptly named, contains process information, kernel parameters and other such things.

SEP