Re: how to expand disks on Stingray Virtual appliance?
Here's what I've done to extend it (and I'm assuming you already have root access):
Add an additional hard disk to the VM.
fdisk the new disk and add partition. Set it to Linux LVM type.
run partprobe to re-scan the partition
pvcreate /dev/<new partition>
vgextend rvbd-ssc-host-vg /dev/<new partition>
lvextend -l +100%FREE /dev/rvbd-ssc-host-vg/root
resize2fs -F /dev/rvbd-ssc-host-vg/root
As you can see, it's really just running standard Linux commands to add a disk, extend the VG and LV, then extend the filesystem. I would caution you on the last step since you have to force it because you cant fsck the root filesystem in the running state (i.e. do it at your own risk). I would suggest taking backups or snapshots or whatever your normal process is, to make sure you have something you can roll back to if things go awry.