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



Here is the update:

[root 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 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 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 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 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 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 fenmrdev03 ~]# lvextend  -l100%FREE  /dev/nuvg4/nulv4




--
Alan A.


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Alan A.

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