[Linux-cluster] What is the proper way to grow LVM/GFS volumes

Alan A alan.zg at gmail.com
Tue Nov 18 22:38:05 UTC 2008


I did. After running lvextend command 'clvmd -R' failed on node2. Then I
fenced the node2 (fenmrdev02) and run the clvmd -R again, this time without
problems. I tried lvextend again - I get the same problem, and again clvmd
-R times out.

On Tue, Nov 18, 2008 at 4:00 PM, Finnur Örn Guðmundsson
<finnzi at finnzi.com>wrote:

> Hi,
>
> Try to run: clvmd -R on one of the nodes.
>
> Bgrds,
> Finnur
>
> > Here is the update:
> >
> > [root at fenmrdev03 ~]# lvextend  -l+100%FREE  /dev/nuvg4/nulv4
> >   Extending logical volume nulv4 to 10.00 GB
> >   Error locking on node fenmrdev04: device-mapper: create ioctl failed:
> > Device or resource busy
> >   Error locking on node fenmrdev03: device-mapper: create ioctl failed:
> > Device or resource busy
> >   Failed to suspend nulv4
> >
> >
> > On Tue, Nov 18, 2008 at 3:15 PM, Scott Wilson <swilson at uchicago.edu>
> > wrote:
> >
> >>
> >> I think you need:
> >>
> >> lvextend  -l+100%FREE  /dev/nuvg4/nulv4
> >>            ^
> >>
> >> Without the +, you were trying to set the logical volume size to the
> >> size
> >> of your free space, not adding the free space to the size.
> >>
> >>
> >> Scott Wilson                    Lead System Administrator
> >> swilson at uchicago.edu            NSIT - DCS - SeaUnix
> >>
> >>
> >> On Tue, 18 Nov 2008, Alan A wrote:
> >>
> >>  I tried a few times to grow LVM by adding additional PV to VG, and then
> >>> executing 'lvextend' command. I am not sure what I am doing wrong but I
> >>> get
> >>> the message that there is error locking on one of the nodes, and then
> >>> the
> >>> GFS hangs.
> >>>
> >>> Here are some of the details:
> >>>
> >>> [root at fenmrdev03 ~]# vgs
> >>>  VG         #PV #LV #SN Attr   VSize  VFree
> >>>  VolGroup00   2   2   0 wz--n- 50.75G    0
> >>>  gfs_sda1     1   1   0 wz--nc 10.00G 5.00G
> >>>  gfs_sdb1     1   1   0 wz--nc 10.00G 3.00G
> >>>  nuvg4        2   1   0 wz--nc 10.00G 5.00G
> >>> [root at fenmrdev03 ~]# lvs
> >>>  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%
> >>> Convert
> >>>  LogVol00 VolGroup00 -wi-ao 40.81G
> >>>  LogVol01 VolGroup00 -wi-ao  9.94G
> >>>  gfs_sda1 gfs_sda1   -wi-ao  5.00G
> >>>  gfs_sdb1 gfs_sdb1   -wi-ao  7.00G
> >>>  nulv4    nuvg4      -wi-ao  5.00G
> >>> [root at fenmrdev03 ~]# pvs
> >>>  PV                VG         Fmt  Attr PSize  PFree
> >>>  /dev/cciss/c0d0p2 VolGroup00 lvm2 a-   33.81G    0
> >>>  /dev/cciss/c0d1p1 VolGroup00 lvm2 a-   16.94G    0
> >>>  /dev/sda1         gfs_sda1   lvm2 a-   10.00G 5.00G
> >>>  /dev/sdb1         gfs_sdb1   lvm2 a-   10.00G 3.00G
> >>>  /dev/sdc          nuvg4      lvm2 a-    5.00G    0
> >>>  /dev/sdd          nuvg4      lvm2 a-    5.00G 5.00G
> >>>
> >>>
> >>> Command I tried:
> >>> [root at fenmrdev03 ~]# lvextend  -l100%FREE  /dev/nuvg4/nulv4
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> Alan A.
> >>>
> >>>
> >> --
> >> Linux-cluster mailing list
> >> Linux-cluster at redhat.com
> >> https://www.redhat.com/mailman/listinfo/linux-cluster
> >>
> >
> >
> >
> > --
> > Alan A.
> > --
> > Linux-cluster mailing list
> > Linux-cluster at redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-cluster
>
>
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-- 
Alan A.
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