How to Find ASM Disk to Physical Device Mapping
by dervish on Jul.31, 2013, under Uncategorized
How to Find ASM Disk to Physical Device Mapping
1. List Oracle ASM Disks
# /etc/init.d/oracleasm listdisks
DV242ASM00
DV242ASM01
DV242ASM02
EMCPPA1
EMCPPB1
2. Query Disk
# /etc/init.d/oracleasm querydisk -d EMCPPB1
Disk “EMCPPB1” is a valid ASM disk on device [8, 33]
3. Match Major/Minor Numbers to Physical Disk
# ls -l /dev | grep 8|grep 33
brw-rw—- 1 root disk 8, 33 Jul 25 17:38 sdc1
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