I'm deploying three host Ovirt HCI and I'm a bit confused about how to configure the glusterFS volumes and bricks in the cockpit. My three hosts are configured the exact same way physically: 2x250GB SSDs in Raid 1 for OS 2 x 2TB SSD in JBOD which I intend to use for Gluster (devices sda and sdb) So on Step 3 (Volumes) of gluster deployment I'm leaving the volumes default (with no arbiter as I want replica 3). So that is creating a volume for Engine, Data and VMstore On step 4 (Bricks) I'm choosing jbod and next is where I'm getting confused. I have to specify the device name and size for each volume. It appears that I have to break up sda and sdb devices here. I have 4 TB total between the two JBOD drives but does that mean I can only specify up to 2TB usable for the data volume (on either sda or sdb) then split the space on the second 2TB drive between engine and vmstore? If so this seems like an awful waste of a 2TB drive for use for only engine and vmstore volumes. With my JBOD configuration of two separate disks per hosts is there any way I can have a data volume use most of that space say 3.5TB and the rest goes to engine/vmstore? It was my understanding that glusterFS would pool all available space together and I could use it however I wanted. Can I achieve this without putting the 2TB disks in to a raid configuraiton? Thanks!
Not sure if you've read this. It might be helpful. https://www.ovirt.org/blog/2018/02/up-and-running-with-ovirt-4-2-and-gluster...
Hello, I have read it several times and it is helpful but unfortunately it doesn't discuss using multiple drives. In that guide they are just using one drive (sdb) in each host, my confusion revolves around how to make use of the second drive I have in each host. For example if I left all three devices as SDB then my second hard drive SDA would never be used. So if I throw SDA in there say for the data volume does that mean I can only use up to the amount of available space on SDA disk for data storage? My main goal here is that I don't want my main data volume to be limited to the available space of a single drive. I want to make best use of the 2x2TB drives I have in each host. If I chose "sda" device for my data volume that device only has 2TB. On Fri, Jul 27, 2018 at 11:21 AM, femi adegoke <ovirt@fateknollogee.com> wrote:
Not sure if you've read this. It might be helpful. https://www.ovirt.org/blog/2018/02/up-and-running-with- ovirt-4-2-and-gluster-storage/ _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community- guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/ message/7OTEPKVIAOIXHRL4WIZSYI5KJX4EK5LO/
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