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| First of all delete all disks from diskgroup | |
| /usr/sbin/oracleasm deletedisk DISK1 | |
| then | |
| clear asm disk headers | |
| dd if=/dev/zero of=/dev/mapper/mpath0p1 bs=8192 count=12800 | |
| reconfigure asm disks | |
| /usr/sbin/oracleasm configure -i | |
| and scandisk again | |
| /usr/sbin/oracleasm scandisks | |
| recreate asm disks | |
| /usr/sbin/oracleasm createdisk DISK1 /dev/mapper/mpath0p1 | |
| last thing , you have to reconfigure asm disks on other node | |
| /usr/sbin/oracleasm configure -i | |
| thats it.. |
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