Increase size of local storage

[Pilar de Teodoro]

Dear Greenplum user,

We are looking for advice. 

We are working with Greenplum opensource 6.19.0 and working on our capacity planning, we have realized we need more storage.

Currently we are using RAID 5 with a net capacity of 35TB/datanode and we have 4 datanodes.

Primaries and mirror are in the same logical volume (/data)

No problems on memory reported, so we were thinking of enlarging the /data volume to 70TB net.

Have any of you gone through this approach before?

Would it be better to expand using more nodes? That would be more expensive of course.

Please advise,

Thanks a lot in advance,

Pilar de Teodoro

ESA Euclid Greenplum administrator.

[Luis Filipe de Macedo]

Its possible to expand the discs, should not be an issue.

 

As all change operations I recommend taking a backup just to be safe.

 

You can add more nodes and expand the cluster as well. The problem of adding only disk is that you might end up with more data than you can process start to have performance issues.

 

Remember that all servers needs to be the same configuration for expansion.

 

 

Rgds,

 

Luis Filipe R Macedo

Adv Data Engineering

VMware Data Solutions

+55 11 988608596

Take care of the customers and the rest takes care of itself

--

 

From: Pilar de Teodoro <pilar.d...@gmail.com>
Date: Friday, 18 August 2023 09:03
To: gpdb-...@greenplum.org <gpdb-...@greenplum.org>
Subject: [gpdb-users] Increase size of local storage

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