I have 2 servers RHEL3 exactly the same links to a SAN.
A HP script use the command find /proc/scsi with returns on my first server :
/proc/scsi
/proc/scsi/sg
/proc/scsi/sg/version
/proc/scsi/sg/host_strs
/proc/scsi/sg/host_hdr
/proc/scsi/sg/hosts
/proc/scsi/sg/device_strs
/proc/scsi/sg/device_hdr
/proc/scsi/sg/devices
/proc/scsi/sg/debug
/proc/scsi/sg/def_reserved_size
/proc/scsi/sg/allow_dio
/proc/scsi/qla2300
/proc/scsi/qla2300/2
/proc/scsi/qla2300/1
/proc/scsi/qla2300/HbaApiNode
/proc/scsi/qla2300/0
/proc/scsi/scsi

on the second second :
find /proc/scsi
/proc/scsi
/proc/scsi/sg
/proc/scsi/sg/version
/proc/scsi/sg/host_strs
/proc/scsi/sg/host_hdr
/proc/scsi/sg/hosts
/proc/scsi/sg/device_strs
/proc/scsi/sg/device_hdr
/proc/scsi/sg/devices
/proc/scsi/sg/debug
/proc/scsi/sg/def_reserved_size
/proc/scsi/sg/allow_dio
/proc/scsi/qla2300

As you can see the second server the "find" list all subdirectories but /proc/scsi/qla2300 and furthemore on that server :
ls -Rl /proc/scsi
/proc/scsi:
total 0
dr-xr-xr-x 2 root root 0 Jun 27 16:33 qla2300
-r--r--r-- 1 root root 0 Jul 19 11:45 scsi
dr-xr-xr-x 2 root root 0 Jul 19 11:45 sg

/proc/scsi/qla2300:
total 0
-rw-r--r-- 1 root root 0 Jul 19 11:45 0
-rw-r--r-- 1 root root 0 Jul 19 11:45 1
-rw-r--r-- 1 root root 0 Jul 19 11:45 2
crw------- 1 root root 254, 0 Jun 27 16:33 HbaApiNode

/proc/scsi/sg:
total 0
-rw-r--r-- 1 root root 0 Jul 19 11:45 allow_dio
-r--r--r-- 1 root root 0 Jul 19 11:45 debug
-rw-r--r-- 1 root root 0 Jul 19 11:45 def_reserved_size
-r--r--r-- 1 root root 0 Jul 19 11:45 device_hdr
-r--r--r-- 1 root root 0 Jul 19 11:45 devices
-r--r--r-- 1 root root 0 Jul 19 11:45 device_strs
-r--r--r-- 1 root root 0 Jul 19 11:45 host_hdr
-r--r--r-- 1 root root 0 Jul 19 11:45 hosts
-r--r--r-- 1 root root 0 Jul 19 11:45 host_strs
-r--r--r-- 1 root root 0 Jul 19 11:45 version

Why find can not list subdirectories into /proc/scsi on the second server ????
- The credentials seems all right.
- There are no "alias". I try \find to bypass alias, no result.
- PATH en env variable are the same between both server.

Any ideas ?