On Wed, Jan 22, 2020, 17:54 Benedetto Vassallo <benedetto.vassallo@unipa.it> wrote:

Hello Guys,
Here at University of Palermo (Italy) we are planning to switch from vmware to ovirt using the hyperconverged solution.
Our design is a 6 nodes cluster, each node with this configuration:

- 1x Dell PowerEdge R7425 server;
- 2x AMD EPYC 7301 Processor;
- 512GB of RAM (8x 64GB LRDIMM, 2666MT/s, Quad Rank);
- 2x Broadcom 57412 Dual Port 10Gb SFP+ ethernet card;
- 3x 600GB 10K RPM SAS for the OS (Raid1 + hotspare);
- 5x 1.2TB 10K RPM SAS for the hosted storage domain (Raid5 + hotspare);

The hosted engine storage donain is small and sould run only one VM, so you probably don't need 1.2T disks for it.

- 11x 2.4TB 10KRPM SAS for the vm data domain (Raid6 + hotspare);
- 4x 960GB SSD SAS for an additional SSD storage domain (Raid5 + hotspare);

Hyperconverged uses gluster, and gluster uses replication (replica 3 or replica 2 + arbiter) so adding raid below may not be needed.

You may use the SSDs for lvm cache for the gluster setup.

I would try to ask on Gluster mailing list about this.

Sahina, what do you think?

Nir

Is this configuration supported or I have to change something?
Thank you and Best Regards.

--
Benedetto Vassallo
Responsabile U.O. Sviluppo e manutenzione dei sistemi
Sistema Informativo di Ateneo
Università degli studi di Palermo

Phone: +3909123860056
Fax: +3909123860880

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