Infrastructure Software

Hello everyone

I would like to learn more about Oracle 11g R2 RAC on home PC running Oracle Linux.

at the point to creating the disks have the folowing error :

[root@rac1 ~]# service oracleasm createdisk DATA1 /dev/sdb1
Marking disk "DATA1" as an ASM disk: [FAILED]
[root@rac1 ~]#

Partitions are:


[root@rac1 ~]# fdisk -l

Platte /dev/sda: 53.6 GByte, 53687091200 Byte
255 heads, 63 sectors/track, 6527 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 4475 35841015 83 Linux
/dev/sda3 4476 4857 3068415 83 Linux
/dev/sda4 4858 6527 13414275 5 Erweiterte
/dev/sda5 4858 6527 13414243+ 8e Linux LVM

Platte /dev/sdb: 8589 MByte, 8589934592 Byte
255 heads, 63 sectors/track, 1044 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sdb1 * 1 1044 8385898+ 8e Linux LVM

Platte /dev/sdc: 8589 MByte, 8589934592 Byte
255 heads, 63 sectors/track, 1044 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sdc1 * 1 1044 8385898+ 8e Linux LVM

Platte /dev/sdd: 8589 MByte, 8589934592 Byte
255 heads, 63 sectors/track, 1044 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sdd1 * 1 1044 8385898+ 8e Linux LVM

Platte /dev/sde: 536 MByte, 536870912 Byte
255 heads, 63 sectors/track, 65 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sde1 * 1 65 522081 8e Linux LVM

Platte /dev/sdf: 536 MByte, 536870912 Byte
255 heads, 63 sectors/track, 65 cylinders
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes

Gerät boot. Anfang Ende Blöcke Id System
/dev/sdf1 * 1 65 522081 8e Linux LVM
[root@rac1 ~]#

and message on /var/log/oracleasm are


[root@rac1 ~]# tail -f /var/log/oracleasm
oracleasm-read-label: Unable to open device "/dev/dm-1": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-1": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-1": No such file or directory
Unable to open device "/dev/sdb1": Device or resource busy
Unable to open device "/dev/sdb1": Device or resource busy
Unable to open device "/dev/sdb1": Device or resource busy
Unable to open device "/dev/sdb1": Device or resource busy

any idea?

Thanks

Abu