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
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