[nzlug] Any way to make the kernel reread disk sizes?

[Raimund Eimann]

Hi,

I've got a disk array driven by the cpqarray kernel module (essentially a 
standard RAID array with a bunch of SCA disks attached). I've extended the 
array by another disk.

Usually after a reboot, fdisk shows the correct size for the logical drive. 
However, I don't want to reboot the box again, otherwise my users may 
strangle me...

Without a reboot fdisk still shows the old size of the logical drive (which 
was valid before the extra disk was put in). Is there any way of getting the 
kernel to reread the disk size of that disk manually and without the need to 
reboot?

Cheers,
Raimund


Today's wisdom:
Oops.  My brain just hit a bad sector.