[linux-lvm] LVM2 on hardware RAID

Musil, William wmusil at labvantage.com
Fri Aug 11 16:48:42 UTC 2006


Hello all.

I have an issue, that I am not sure how to address.

How can I resize the physical volume if I change the geometry of the disk
(non-destructive resize of RAID volume at the hardware level) 
I can see that the OS has picked up the new size of the disk and I would like
to resize the existing pv. I don't know how.

I started with a hardware raid 5 (400GB), linux automatically recognizes disk
as /dev/sdb

a simplistic representation of the setup is as follows

pvcreate /dev/sdb
vgcreate VolGroup10 /dev/sdb
lvcreate -n LogVol10 VolGroup10
mkfs.ext3 /dev/mapper/VolGroup10-LogVol10

I have added a disk and expand the array to 600GB I can still see every thing
but I don't know how to extend the PV.

filesystems OK
logical volumes OK
volume groups OK

linux sees /dev/sdb as 600GB
pvs shows pv /dev/sdb is 400GB. I wish to, non-destructively, reinitialize
/dev/sdb so that pvs shows 600GB. how?


William T. Musil
Manager, Technical Services

LabVantage Solutions, Inc.
1160 US Highway 22 East, Bridgewater, NJ 08807
p| 908.333.0111
f | 908.707.1179 
e| wmusil at labvantage.com
i | www.labvantage.com

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