Xenserver Space Woes
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So my IOPs seem to be jumping between 0 and 900k fairly quickly. But the Queue size seems to stay between 0 and 1, with the latency very low (near zero) as well. Network traffic is well under 1MBps. This is from the performance meters on the Xen master host.
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@jrc said in Xenserver Space Woes:
So my IOPs seem to be jumping between 0 and 900k fairly quickly. But the Queue size seems to stay between 0 and 1, with the latency very low (near zero) as well. Network traffic is well under 1MBps. This is from the performance meters on the Xen master host.
Basically what that is telling me is that you have plenty of IOPS in reserve and you are never demanding more from it than it can provide. Those numbers are basically showing your storage as "idle" and ready for whatever you want to throw at it.
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@scottalanmiller said in Xenserver Space Woes:
@jrc said in Xenserver Space Woes:
So my IOPs seem to be jumping between 0 and 900k fairly quickly. But the Queue size seems to stay between 0 and 1, with the latency very low (near zero) as well. Network traffic is well under 1MBps. This is from the performance meters on the Xen master host.
Basically what that is telling me is that you have plenty of IOPS in reserve and you are never demanding more from it than it can provide. Those numbers are basically showing your storage as "idle" and ready for whatever you want to throw at it.
Ok, so my gut on that was right. Then I need to work out why the leaf quiescence thingy is timing out, since it appears to not be a disk IO thing.
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I fixed it! Shut down the VM, then ran an offline quiescence and that did it:
xe host-call-plugin host-uuid=<Host UUID> plugin=coalesce-leaf fn=leaf-coalesce args:vm_uuid=<VM UUID>
It did take about 45 minutes, but once it was done the space was free. Xencenter is now happily reporting the used space as 4127Gb and a virtually assigned is 4115Gb, it's not perfect, but I'll take it!
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Awesome, glad that that fixed things.
