[gpfsug-discuss] Increase volume size after nsd/disk creation

[Jim Doherty]

 Just  create/add another nsd.
    On Wednesday, June 14, 2023 at 04:03:59 PM EDT, Alec <anacreo at gmail.com> wrote:  
 
 perhaps mmnsddiscover will do it for you, I guess not though...

You should be able at the worst case increase the disk size, then do a mmdeldisk and an mmadddisk to reimport each disk at the new size.   If memory serves though the meta size is based on the size of the first disk that is imported and won't increase, which affects how large your pool can actually grow to.  I'm sure there are workarounds to that though.
Alec
On Wed, Jun 14, 2023, 12:42 PM Popescu, Razvan <rp2927 at gsb.columbia.edu> wrote:


Hello,

 

Does anyone know if GPFS allows the increase in capacity of already existing nsd/disks, in order to add capacity to a storage pool? 

 

I need to increase the space on an existing filesystem, and wonder if rather than having to add new nds/disks to the storage pool, I could leverage the ability of the backend block storage array (NetApp E5600) to increase the capacity of existing raid volumes, and propagate the increase in space all the way through nsd/disk/storage pool.  Sounds somewhat close to handling thin disks – yes, not quite the same, but I found no reference in the manuals either way.

 

Many thanks!

Razvan

 

 

Columbia Business School

At the Very Center of Business

 
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