[Gluster-users] Adding storage capacity to a production disperse volume

[Theodore Buchwald]

Hello,

And thank you to the users of the group. That clarified what I was
wondering and answered my question on the additional storage space.

I had another question in regard to adding a unit to this gluster disperse
setup. I may be able to add a large capacity JBOD to this gluster
configuration. So I would be able to divide the single storage unit into 5
bricks of the same size of each of the existing 5 bricks that are
configured in the gluster cluster.

My question is this possible to do with one unit and add to the
single volume "Volume Name: researchdata" in my existing setup? Reading
documentation on adding to a disperse volume I am not sure on how to
proceed with this type of addition.

   Thanks Tbuck!

On Wed, Mar 13, 2024 at 5:39 PM Theodore Buchwald <buchwald at ucsc.edu> wrote:

> Hi,
>
>
> This is the first time I have tried to expand the storage of a live
> gluster volume. I was able to get another supermicro storage unit for a
> gluster cluster that I built. The current clustered storage configuration
> contains five supermicro units. And the cluster volume is setup with the
> following configuration:
>
>
> node-6[/var/log/glusterfs]# gluster volume info
>
>
>
> Volume Name: researchdata
>
> Type: Disperse
>
> Volume ID: 93d4-482a-8933-2d81298d5b3b
>
> Status: Started
>
> Snapshot Count: 0
>
> Number of Bricks: 1 x (4 + 1) = 5
>
> Transport-type: tcp
>
> Bricks:
>
> Brick1: node-1:/mnt/data/researchdata-1
>
> Brick2: node-2:/mnt/data/researchdata-2
>
> Brick3: node-3:/mnt/data/researchdata-3
>
> Brick4: node-4:/mnt/data/researchdata-4
>
> Brick5: node-5:/mnt/data/researchdata-5
>
> Options Reconfigured:
>
> features.quota-deem-statfs: on
>
> features.inode-quota: on
>
> features.quota: on
>
> storage.fips-mode-rchecksum: on
>
> transport.address-family: inet
>
> nfs.disable: on
>
> locks.mandatory-locking: optimal
>
>
> Adding the node to the cluster was no problem. But adding a brick using
> 'add-brick' to the volume resulted in "volume add-brick: failed: Incorrect
> number of bricks supplied 1 with count 5". So my question is. What would be
> the correct amount of bricks needed to expand the storage on the current
> configuration of 'Number of Bricks: 1 x (4 + 1) = 5'? Without
> reconfiguring the volume all together.
>
>
> Thanks in advance for any pointers in how to expand this volume's storage
> capabilities.
>
>   Thanks, Tbuck
>


-- 

Ted Buchwald

Divisional LIT support of PBSci IT Staff
buchwald at ucsc.edu
831-459-1298

Earth & Marine Sciences Bldg , Room A309
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