Automatic Storage Management :: DISKSTRING Is Empty And Discover Discs

Feb 26, 2013

SO: RHEL6
GI: 11.2.0.3
User owner: grid

The parameter ASM_DISKSTRING is null string however discovers disks.

SQL> select name, path from v$asm_disk;

NAME                           PATH
------------------------------ --------------------------------------------------
                               /dev/vg_hdisk_ora/lv_hd10
                               /dev/vg_hdisk_ora/lv_hd15
                               /dev/vg_hdisk_ora/lv_hd3
                               /dev/vg_hdisk_ora/lv_hd6
                               /dev/vg_hdisk_ora/lv_hd4
                              
[Code] .....

20 rows selected.

SQL> show parameters string

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
asm_diskstring                       stringAfter setting asm_diskstring to "/dev/asm*", list 40 disks (kernel-assigned device file names & UDEV name)

DISK_NUMBER PATH
----------- ----------------------------------------
          0 /dev/asm-disk10
         39 /dev/vg_hdisk_ora/lv_hd15
          2 /dev/asm-disk3
          3 /dev/asm-disk6
          4 /dev/asm-disk4
          5 /dev/asm-disk7
        
[Code] ...

40 rows selected.1. Why not list only the names of devices UDEV?

2. Is this normal when creating UDEV rules to ASM?

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[code]....

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