Checking disk with sccli and asm

Question

Hi all,
I'm a newbie with sccli. I'be been checking what disks, logical volume, physcial volume, lun, partition in the sccli have been used for the asm and what is disk is still available in the OS level.
Will you please advice on the command and steps to check this.
and any document links.
thanks
andrew

Answer 1

[oracle@localhost init.d]$ oracleasm listdisks
VOL1
VOL2
[oracle@localhost init.d]$
Well for this you can use oracleasm querydisk.Using this you can identify which device as marked for asm or not. for example you can see this below example.
[oracle@localhost init.d]$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jun 3 11:52:12 2010
Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select path from v$asm_disk;
PATH
/dev/oracleasm/disks/VOL2
/dev/oracleasm/disks/VOL1
SQL> exit;
[oracle@localhost init.d]$ su
Password:
[root@localhost init.d]# /sbin/fdisk -l
Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1305    10482381   83  Linux
/dev/sda2            1306        9401    65031120   83  Linux
/dev/sda3            9402        9662     2096482+  82  Linux swap / Solaris
/dev/sda4            9663        9726      514080    5  Extended
/dev/sda5            9663        9726      514048+  83  Linux
Disk /dev/sdb: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        4859    39029886   83  Linux
/dev/sdb2            4860        9729    39118275   83  Linux
[root@localhost init.d]# ./oracleasm querydisk /dev/sdb1
Device "/dev/sdb1" is marked an ASM disk with the label "VOL1"
[root@localhost init.d]# ./oracleasm querydisk /dev/sdb2
Device "/dev/sdb2" is marked an ASM disk with the label "VOL2"
[root@localhost init.d]# ./oracleasm querydisk /dev/sda1
Device "/dev/sda1" is not marked as an ASM disk
[root@localhost init.d]#
Also in windows :
C:\Documents and Settings\comp>asmtool -list
NTFS                             \Device\Harddisk0\Partition1           140655M
ORCLDISKDATA1                    \Device\Harddisk0\Partition2             4102M
ORCLDISKDATA2                    \Device\Harddisk0\Partition3             4102M
NTFS                             \Device\Harddisk0\Partition4           152617M
C:\Documents and Settings\comp>
answered by Chinarsource:-how to identify which rawdevice Disk Is named as VOL1 IN ASM from os level
how to identify which rawdevice Disk Is named as VOL1 IN ASM from os level