Saturday, March 26, 2016

How To Find Mapping of ASM Disks to Physical Devices

How To Find Mapping of ASM Disks to Physical Devices

How to find mapping of ASM disks to Physical Devices?
1.Login as root

# /etc/init.d/oracleasm listdisks
DSK1

2. Query Disk
]# /etc/init.d/oracleasm querydisk -d dsk1
Disk "DSK1" is a valid ASM disk on device [8, 17]

3. oracleasm querydisk dsk1 you will get in addition the major - minor numbers, that can be used to match the physical device,
# ls -l /dev |grep 8|grep 17
brw-r----- 1 root disk   8,   17 Aug 10 13:05 sdb1

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