ASM disk discovery in AIX

Hi 

I am facing issue with discovery of disks on the AIX server. This is new environment which is 4 -node RAC and when I am trying to configure ASM disk group , I am not able to see the ASM disks. Here is what is available so far

Db Version : 10.2.0.4
Platform : AIX


1. Permission on ASM disk are Oracle:oinstall
2. Also Mode setting is 660
3. More information on Major/Minor along with Alias. I tried to use /dev/*, /dev/ora_asm* but no one is able to discover any disk.
racdb1 dev$ls -ltr |grep "36, 39"
crw-rw----    1 root     system       37, 39 Mar 31 13:32 rhdiskpower39
brw-rw----    1 root     system       37, 39 Mar 31 13:32 hdiskpower39
crw-rw----    1 oracle   oinstall     37, 39 Apr 30 15:07 ora_asm_disk34

4. Reserve_lock information
racdb1:/dev$lsattr -El hdiskpower39
cgname                                          Consistency Group Name     True
clr_q         yes                               Clear Queue (RS/6000)      True
location                                         Location                   True
lun_id        0x1b9000000000000  LUN ID                     False
lun_reset_spt yes                           FC Forced Open LUN         True
max_coalesce  0x20000                Maximum coalesce size      True
max_transfer  0x40000                 Maximum transfer size      True
pvid          none                            Physical volume identifier False
pvid_takeover yes                        Takeover PVIDs from hdisks True
q_err         no                              Use QERR bit               True
q_type        simple                      Queue TYPE                 False
queue_depth   16                         Queue DEPTH                True
reassign_to   120                        REASSIGN time out value    True
reserve_lock  no                         Reserve device on open     True
rw_timeout    40                         READ/WRITE time out        True
scsi_id       0x632913                   SCSI ID                    False
start_timeout 180                        START unit time out        True
ww_name       0x50060482d530b488 World Wide Name            False


5. Tried to Truss the rbal process  and ran the "Select * from v$asm_disk" and here is the ouutput
540734:                                                 = 1
540734: thread_wait(3000)                               = 0
540734: statx(".", 0x0FFFFFFFFFFFB330, 176, 0)          = 0
540734: open(".", O_RDONLY)                             = 14
540734: getdirent64(14, 0x0000000110647CF0, 4096)       = 264
540734: klseek(14, 0, 0, 0x0FFFFFFFFFFFB230)            = 0
540734: kfcntl(14, F_GETFD, 0x000000011025EF78)         = 0
540734: kfcntl(14, F_SETFD, 0x0000000000000001)         = 0
540734: close(14)                                       = 0
540734: statx("/", 0x0FFFFFFFFFFFB550, 176, 020)        = 0
540734: statx("./", 0x0FFFFFFFFFFFB550, 176, 020)       = 0
540734: statx("./../", 0x0FFFFFFFFFFFB330, 176, 0)      = 0
540734: open("./../", O_RDONLY)                         = 14
540734: getdirent64(14, 0x0000000110647CF0, 4096)       = 2360
540734: klseek(14, 0, 0, 0x0FFFFFFFFFFFB230)            = 0
540734: kfcntl(14, F_GETFD, 0x000000011025EF78)         = 0
540734: kfcntl(14, F_SETFD, 0x0000000000000001)         = 0
540734: fstatx(14, 0x0FFFFFFFFFFFB550, 176, 020)        = 0
540734: getdirent64(14, 0x0000000110647CF0, 4096)       = 2360
540734: close(14)                                       = 0
540734: statx("./../../", 0x0FFFFFFFFFFFB330, 176, 0)   Err#13 EACCES
540734: thread_post(1458215)                            = 0
540734: thread_post(1458215)                            = 0
540734: thread_post(1458215)                            = 0
540734: thread_wait(2270)               (sleeping...)
540734: thread_wait(2270)                               = 1
540734: times(0x0FFFFFFFFFFFD760)                       = 32513143
540734: times(0x0FFFFFFFFFFFD6B0)                       = 32513143
540734: open("/proc/651314/psinfo", O_RDONLY)           = 14
540734: kread(14, "\0  \0010204\001\0\0\001".., 448)    = 448
540734: close(14)                                       = 0


Any more checking that can help

TIA
Sanjay


      

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