How to find mapping of ASM disks to Physical Devices?

Here is Video of these procedures
login with root user
1) identify asm disks

/etc/init.d/oracleasm listdisks
DATA01

2) query disks FOR DATA01

 
/etc/init.d/oracleasm querydisk -d DATA01
Disk "DATA01" is a valid ASM disk on device /dev/sde2[8,66]
ls -l /dev | grep 8 | grep 66
brw-r----- 1 root disk     8,  66 Jan 11 06:51 sde2

it means that physical partition sde2 is using for ASM disk DATA01.

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