Asm disk removed taking too much time to boot

hi
a local machine is configured with ASM by oracleasm with a total disk.As it was a training purpose so i have removed the disk eg /dev/sdb bluntly ie. just removing it from box.now i tried fsck -c -c -f /dev/ in rescue mode its didnot worked even not mounting the /mnt/sysimage.It claims for ext2fs error and mounting the fs etc.
Then after lots of days has gone.i fed up with this issues and reinstalled OS.
but my question is what exactly to do?obviously re-installation is not the exact way to do.
regards

If the +/dev/sdb+ was an ASM disk, then it should not impact the o/s when it is removed. ASM instance itself will fail with an error saying something like it was not able to mount the disk group.
If your system failed to boot correctly after this disk was removed, then +/dev/sdb+ contained more than just ASM data.
We dynamically add and remove ASM (multipath'ed) disks via kpartx - while o/s is running. No reboot. No problems.
I fail to see how a ASM disk could cause the type of problems you describe - unless it was more than just a disk used by ASM alone.

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