Management of Oracle ASM (III)

Oracle provides a tool for manual query of ASM disk information-kfod. First, let's look at the help information:

Db1-> kfod-help
_ Asm_a/llow_only_raw_disks KFOD allow only raw devices [_ asm_allow_only_raw_disks = TRUE/(FALSE)]
_ Asm_l/ibraries ASM Libraries [_ asm_libraries = lib1, lib2,...]
_ Asms/id ASM Instance [_ asmsid = sid]
A/sm_diskstring ASM Diskstring [asm_diskstring = discoverystring, discoverystring...]
D/isks Disks to discover [disks = raw, asm, all]
G/roup Group discover [group = controlfile]
N/ohdr KFOD header suppression [nohdr = TRUE/(FALSE)]
O/p KFOD options type [OP = DISKS/GROUPS/ALL]
P/file ASM parameter file [pfile = parameterfile]
S/tatus Include disk header status [status = TRUE/(FALSE)]
V/erbose KFOD verbose errors [verbose = TRUE/(FALSE)]

According to the help information above, it is hard to see the disk parameter-disk (kfod is also very simple to use)

Db1-> kfod disk = all
--------------------------------------------------------------------------------
Disk Size Path
========================================================== ==========================================================
1: 379567 Mb/dev/raw/raw1
2: 379567 Mb/dev/raw/raw2
3: 379818 Mb/dev/raw/raw3
--------------------------------------------------------------------------------
ORACLE_SID ORACLE_HOME
========================================================== ==========================================================
+ ASM1/opt/oracle/product/10.2.0/db_1
+ ASM2/opt/oracle/product/10.2.0/db_1

Note: This section details all the current ASM disk groups and the size of the disk groups.

Someone will ask, I know the total size of the ASM disk. How can I view the free space of the current ASM disk? This is also very easy.

Db1-> sqlplus/as sysdba
SQL> select name, total_mb, free_mb from v $ asm_diskgroup;
NAME TOTAL_MB FREE_MB
--------------------------------------------------
DG1 759134 381088
RECOVERYDEST 379818 289055