RE: [linux-lvm] LVM2 on hardware RAID

["Greg Hartzog" <glhartzog@comcast.net>]

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I believe you will do the following:

 

"pvresive /dev/sdb"

 

That will make the volume group now be 600GB.

 

Then use "lvextend" to enlarge the logical volumes, and whatever the proper
tool is to extend the EXT3 filesystem.

 

Best to have the logical volumes & volume group offline ("vgchange -a n")
before starting resizing.

 

Just my $0.02.

 

  _____  

From: linux-lvm-bounces@redhat.com [mailto:linux-lvm-bounces@redhat.com] On
Behalf Of Musil, William
Sent: Friday, August 11, 2006 12:49 PM
To: linux-lvm@redhat.com
Subject: [linux-lvm] LVM2 on hardware RAID

 

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@labvantage.com 
i | www.labvantage.com 

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