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RE: [dm-devel] online disk resizing



I did the same with HP MSA in the past, but without dm involved.

You can use "blockdev --rereadpt <blockdevice>" to make the the kernel
recognise the new disk size (geometery). The nasty thing is that you
have to stop all I/O to the blocdevice. 

Roland Mieslinger

> -----Original Message-----
> From: dm-devel-bounces redhat com 
> [mailto:dm-devel-bounces redhat com] On Behalf Of Alexander Benaguev
> Sent: Mittwoch, 4. Juli 2007 19:17
> To: dm-devel redhat com
> Subject: [dm-devel] online disk resizing
> 
> hi, list
> 
> I have fc-based SAN which has ability to resizing logical 
> disks online (IBM DS4000). is this a method tell about 
> resizing to host system (centOS 5) without reboot or echo 
> "scsi remove(add)-single-device 0 1 2 3"? I use multipath if 
> this matters. will apprecate any help
> 
> alexander
> 
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