ASM disk creation --device or resource busy

 /etc/init.d/oracleasm createdisk -- Device or resource busy

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Hi ,

Some times while creating ASM disks, it will show resource busy.

[Linux01 root]# /etc/init.d/oracleasm configure

Configuring the Oracle ASM library driver.

 This will configure the on-boot properties of the Oracle ASM library

driver.  The following questions will determine whether the driver is

loaded on boot and what permissions it will have.  The current values

will be shown in brackets ('[]').  Hitting <ENTER> without typing an

answer will keep that current value.  Ctrl-C will abort.

 Default user to own the driver interface [ grid]: grid

Default group to own the driver interface [oinstall]: asmadmin

Start Oracle ASM library driver on boot (y/n) [y]: y

Scan for Oracle ASM disks on boot (y/n) [y]: y

Writing Oracle ASM library driver configuration: done

Initializing the Oracle ASMLib driver:                    [  OK  ]

Scanning the system for Oracle ASMLib disks:    [  OK  ]

[linux01 root]# /etc/init.d/oracleasm disable

Writing Oracle ASM library driver configuration: done

Dropping Oracle ASMLib disks:                              [  OK  ]

Shutting down the Oracle ASMLib driver:            [  OK  ]

[linux01 root]# /etc/init.d/oracleasm enable

Writing Oracle ASM library driver configuration: done

Initializing the Oracle ASMLib driver:                     [  OK  ]

Scanning the system for Oracle ASMLib disks:     [  OK  ]

 ALL ASM DRIVERS LOOKS FINE.

[linux01 root]# /etc/init.d/oracleasm createdisk DISK1 /dev/sdb1

Marking disk "DISK1" as an ASM disk:                       [FAILED]

Now we can check in below file

[linux01 root]# vi /var/log/oracleasm

xxxxx 

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

Unable to open device "/dev/sdb1": Device or resource busy

Unable to open device "/dev/sdb1": Device or resource busy

SOLUTION:

[linux01 root]# /usr/sbin/asmtool -C -l /dev/oracleasm -n DISK1 -s /dev/sdb1 -a force=yes

 [linux01 root]# /etc/init.d/oracleasm scandisks

Scanning the system for Oracle ASMLib disks:               [  OK  ]      

[linux01 root]# /etc/init.d/oracleasm listdisks

DISK1

[linux01 root]# /usr/sbin/asmtool -C -l /dev/oracleasm -n DISK2 -s /dev/sdc1 -a force=yes

[linux01 root]# /etc/init.d/oracleasm listdisks

DISK1

DISK2

Rest nodes, please scan it

[linux02 root]# /etc/init.d/oracleasm scandisks

Scanning the system for Oracle ASMLib disks:               [  OK  ]

 [linux02 root]# /etc/init.d/oracleasm listdisks

DISK1

DISK2

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