[TriLUG] Disk Partitioning on-line

[Ron Joffe]

I have a RHAS 2.1 server. I am trying to add an additional partition on a SCSI 
RAID array on the fly without a reboot (<-- The Key). I can easily create the 
partition using fdisk or parted, but once I exit either of these, the kernel 
doesn't seem to know about it:

Other then a reboot (which I know will fix the issue) is there another method 
for notifying the kernel of a partition change.

fdisk states on exit:
Re-read table failed with error 16: Device or resource busy.
Reboot your system to ensure the partition table is updated.

Any ideas?

Thanks,

Ron