Re: Adding storage capacity to a production disperse volume

[Theodore Buchwald <buchwald@xxxxxxxx>]

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@xxxxxxxx> 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@xxxxxxxx
831-459-1298

Earth & Marine Sciences Bldg , Room A309

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