Use "lsdg" to examine the disk groups.
ASMCMD>lsdg
Use the "ls" command to list the ASM directory structure
ASMCMD>ls
"cd" command to change to the AWORLD directory
ASMCMD>cd AWORLD
"du" command to evaluate size of the disk group directory
ASMCMD>du
"lsct" command to see software versions.
ASMCMD> lsct
"lsct -g" to examine the client’s use of diskgroups
ASMCMD>lsct–g
"lsdsk" shows the disks that are managed by ASM
"iostat" to see the Reads and Writes
ASMCMD> iostat
---Nikhil Tatineni--
---Oracle : ASM ---