Database Software

I created oracleasm disks, build a two node RAC on asm diskgroups and created rac instances on Nov .4th.

The OS is RED Hat 5, and db version is 11.2.0.2.4.

Now I find out one node uptime is 24 days, node 2 is 12 days. THat means there was a reboot 12 days ago.

Then all my oracleasmdisks not existed.

If I do a oracleasm listdisks, there will show nothing. I went to /dev/oracleasm/disks, there are nothing under there.
[root]# cd /dev/oracleasm/disks
[root]# ls
[root]#



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



I documented my steps from my implementation, and I am 100% sure I got everything up and running.

I checked /var/log oracleasm message, it said:
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-2": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-2": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-2": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-2": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-3": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-3": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-3": No such file or directory
oracleasm-read-label: Unable to open device "/dev/dm-3": No such file or directory


fdisk -l |grep Disk
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sda: 146.1 GB, 146163105792 bytes
Disk /dev/sdb: 322.1 GB, 322122547200 bytes
Disk /dev/sdc: 107.3 GB, 107374182400 bytes
Disk /dev/sdbj: 128.8 GB, 128849018880 bytes
Disk /dev/sdbk: 128.8 GB, 128849018880 bytes
...
Disk /dev/emcpowerb: 322.1 GB, 322122547200 bytes
Disk /dev/emcpowerd: 123.4 GB, 123480309760 bytes
Disk /dev/emcpowerg: 107.3 GB, 107374182400 bytes
Disk /dev/emcpowerl: 128.8 GB, 128849018880 bytes
Disk /dev/emcpowerj: 128.8 GB, 128849018880 bytes
Disk /dev/emcpowerk: 128.8 GB, 128849018880 bytes

I would like to know if any reboot of the server will cause oracleasm disks gone? what else I can check to find out what happened to my oracleasm disks?

Thanks