На 16 юли 2020 г. 0:41:22 GMT+03:00, Philip Brown <[email protected]> написа: >Hmm... > > >Are you then saying, that YES, all host nodes need to be able to talk >to the glusterfs filesystem? > No, but you sounded like you need that. You can have 'replica 3' and 2 hosts won't have gluster server running (still able to mount).
>on a related note, I'd like to have as few nodes actually holding >glusterfs data as possible, since I want that data on SSD. >Rather than multiple "replication set" hosts, and one arbiter.. is it >instead possible to have only 2 replication set hosts, and multiple >(arbitrariliy many) arbiter nodes? > You need 2 copies of the data, but 'replica 3' is most optimal. >----- Original Message ----- >From: "Strahil Nikolov" <[email protected]> >To: "users" <[email protected]>, "Philip Brown" <[email protected]> >Sent: Wednesday, July 15, 2020 1:59:40 PM >Subject: Re: [ovirt-users] Re: mixed hyperconverged? > >You can use a distributed replicated volume of type 'replica 3 >arbiter 1'. >For example, NodeA and NodeB are contain replica set 1 with NodeC >as their arbiter and NodeD and NodeE as the second replica set 2 >with NodeC as thir arbiter also. > >In such case you got only 2 copies of a single shard, but you are fully >"supported" from gluster perspective. >Also, all hosts can have an external storage like your NAS. > >Best Regards, >Strahil Nikolov > >На 15 юли 2020 г. 21:11:34 GMT+03:00, Philip Brown <[email protected]> >написа: >>arg. when I said "add 2 more nodes that arent part of the cluster", I >>meant, >>"part of the glusterfs cluster". >> >>or at minimum, maybe some kind of client-only setup, if they need >>access? >> >> >>----- Original Message ----- >>From: "Philip Brown" <[email protected]> >>To: "users" <[email protected]> >>Sent: Wednesday, July 15, 2020 10:37:48 AM >>Subject: [ovirt-users] mixed hyperconverged? >> >>I'm thinking of doing an SSD based hyperconverged setup (for 4.3), but >>am wondering about certain design issues. >> >>seems like the optimal number is 3 nodes for the glusterfs. >>but.. I want 5 host nodes, not 3 >>and I want the main storage for VMs to be separate iSCSI NAS boxes. >>Is it possible to have 3 nodes be the hyperconverged stuff.. but then >>add in 2 "regular" nodes, that dont store anything and arent part of >>the cluster? >> >>is it required to be part of the gluster cluster, to also be part of >>the ovirt cluster, if thats where the hosted-engine lives? >>or can I just have the hosted engine be switchable between the 3 >nodes, >>and the other 2 be VM-only hosts? >> >>Any recommendations here? >> >>I dont what 5 way replication going on. Nor do I want to have to pay >>for large SSDs on all my host nodes. >>(Im planning to run them with the ovirt 3.4 node image) >> >> >> >>-- >>Philip Brown| Sr. Linux System Administrator | Medata, Inc. >>5 Peters Canyon Rd Suite 250 >>Irvine CA 92606 >>Office 714.918.1310| Fax 714.918.1325 >>[email protected]| www.medata.com >>_______________________________________________ Best Regards, Strahil Nikolov _______________________________________________ Users mailing list -- [email protected] To unsubscribe send an email to [email protected] Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/[email protected]/message/4G57WQOYI7IAPIP5KDHOCI6KJX6AR4Z5/
