Database Software

Hi,

Oracle 11g 10.2.0.1, Virutalbox, Guest OS Oracle Enterprise Linux 5.5 with ASMLib

I wanted to re-create the ASM instance. I deleted all data and used oracleasm deletedisk to remove the devices.

For some reason oracleasm will not register any of the disks again.

# oracleasm createdisk /dev/sdb VOL1
Disk label "/dev/sdb" contains an invalid character

I tried dd, gparted and other tools to change the data. It seems the conflict is somewhere else, in particular since I re-created the virtual disks from scratch. This is only a test environment and I deleted the physical disks and recreated new devices using the Virtual Disk Manager in Virtualbox. I used fdisk to create new partitions, but he problem remains.

Below some more results:

# oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks...
Scanning system for ASM disks...
#

# oracleasm deletedisk /dev/sdb1
Device "/dev/sdb1" is not marked as an ASM disk

# oracleasm querydisk /dev/sdb1
Device "/dev/sdb1" is not marked as an ASM disk

fdisk -l /dev/sdb1

Disk /dev/sdb1: 2146 MB, 2146765824 bytes
255 heads, 63 sectors/track, 260 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb1 doesn't contain a valid partition table


Any ideas?

Thanks,
Markus

Edited by: Markus Waldorf on Sep 15, 2010 8:34 PM