[ldoms-discuss] Growing veritas file systems in guest LDOMs

[Alexandre Chartre]

  It works only if the volume (either VxVM or ZFS) is exported as a
single-slice disk (i.e. exported with the "slice" option). Otherwise
if the volume is exported as a full disk then the accessible geometry
is controlled by the disk label which is written on the disk.

  There's a RFE opened for this: 6699271 (Dynamic virtual disk size
management).

alex.

Stuart Davey wrote:
> Hello all,
> 
> Forgive me if I'm being stupid but I'm currently trying to grow a 
> Veritas Filesystem in a guest LDOM without any success. The Veritas 
> documentation suggests that it is possible: first grow the VxVM volume 
> in the control domain using "vxassist -g diskgroup growto volume length" 
> and then grow the file system in the guest domain  using  
> "/usr/lib/fs/vxfs/fsadm -b num_blocks  mount_point". The Vx docs state 
> that VxVM must be in the control domain and VxFS in the guest.
> 
> The issue I seem to be having is that when I export the volume to the 
> guest LDOM, it sees it as a normal disk (i.e. 7 slices). Consequently I 
> go into format and partition it, label it and then apply a VxFS to it 
> before mounting. After growing the volume in the control domain the 
> guest domain still sees the original size volume (checked with format) 
> and so it can't grow the file system. Have I missed something obvious?
> 
> Before starting out, I was hoping that I would simply be able to put 
> VxFS on a Vx volume in the control domain and then export it to the 
> guest domain - similar to what one would do with ZFS. My experience and 
> the Vx docs suggest that this is not possible.
> 
> Has anyone out there been successful in growing a Vx file system in a 
> guest LDOM. If you have, and you can give me the "recipe" then I would 
> be very grateful.
> 
> Thanks,
> 
> Stuart
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