Here's an example with one shared Storage Domain that works. (local.ca is an
internal domain)
/etc/exports (n1.local)
-----------------------
/data/images/ovirt/n1_data_storage *.local.ca(rw,async,wdelay,root_squash)
/data/images/ovirt/n1_data_storage
192.168.1.0/24(rw,async,wdelay,root_squash)
/etc/exports (n2.local)
-----------------------
/data/images/ovirt/n2_data_storage *.local.ca(rw,async,wdelay,root_squash)
/data/images/ovirt/n2_data_storage
192.168.1.0/24(rw,async,wdelay,root_squash)
NFS mounts (n1.local)
---------------------
Server
n1.local.ca:/data/images/ovirt/n1_data_storage
Mount point
/rhev/data-center/mnt/n1.local.ca:_data_images_ovirt_n1__data__storage
Server
n2.local.ca:/data/images/ovirt/n2_data_storage
Mount point
/rhev/data-center/mnt/n2.local.ca:_data_images_ovirt_n2__data__storage
NFS mounts (n2.local)
---------------------
Server
n1.local.ca:/data/images/ovirt/n1_data_storage
Mount point
/rhev/data-center/mnt/n1.local.ca:_data_images_ovirt_n1__data__storage
Server
n2.local.ca:/data/images/ovirt/n2_data_storage
Mount point
/rhev/data-center/mnt/n2.local.ca:_data_images_ovirt_n2__data__storage
Like I said, local storage is not ideal, because you do lose some
functionality. Also, If you lose a node, you also lose it's storage and its
VMs, but at least this way (using NFS), you can keep it all within the same
Data Center which gives you more flexibility by not isolating each node's local
storage to its own Data Center.
Once I move that /data directory (where the VMs sit) off the root filesystem
"/" to it's own LV, I'll try the upgrade again. I did find examples on how to
shrink an NSF, but I'm not sure how to handle oVirt's onn-pool00-tpool.
I did try reinstalling a node from scratch, but the custom disk partitioning
during setup doesn't seem to work. It would be nice if oVirt automatically
partitioned the /data directory to its own LV while sizing it with the
remaining disk space.
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