[Linux-cluster] Can I shrink/grow one GFS{12} FileSystem?

[Tiago Cruz]

Anderson and Gary,

Many thanks for your attention!

I've did one test here, and works perfectly!

I just have one problem, because I need to restart my gnbd_serv, and
re-export the GNDB device for nodes, because I've got this error
messages:

Apr  4 16:40:15 xen-7 gnbd_serv[23817]: ERROR size of the exported file /dev/Vol_LVM/mycluster has changed, aborting 
Apr  4 16:40:15 xen-7 gnbd_serv[23817]: server process 2956 exited because of signal 11 
Apr  4 16:40:15 xen-7 kernel: gnbd_serv[2956]: segfault at 000000000000000c rip 0000000000405ab0 rsp 00007fff36dcb450 error 4
Apr  4 16:41:10 xen-7 gnbd_serv[2970]: startup succeeded 
Apr  4 16:41:17 xen-7 gnbd_serv[2970]: got local command 0x1 
Apr  4 16:41:17 xen-7 gnbd_serv[2970]: gnbd device 'cluster' serving /dev/Vol_LVM/mycluster exported with 41943040 sectors 


But I did another test, and this time I've just "restart" the export
using:
# gnbd_export -R -O
# gnbd_export -c -d /dev/Vol_LVM/mycluster -e cluster

And sounds like fine on the nodes... but I don't know if this process
it's recommend, or if this force (-O  Force unexport) can be dangerous
for the filesystem...

Thanks


On Fri, 2008-04-04 at 14:22 -0500, Derek Anderson wrote:

> You can grow the filesystem with gfs_grow, once the underlying device
> has been expanded.  See gfs_grow(8) for more information.