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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi,
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<div>maybe a stupid one. Just want to make sure that nothing goes wrong. We </div>
<div>plan to make a rolling <span style="font-size: 10pt;">upgrade of our </span><span style="font-size: 10pt;">landscape going to 3.5.1 in december. </span></div>
<div><span style="font-size: 10pt;">S</span><span style="font-size: 10pt;">o we always need </span><span style="font-size: 10pt;">some hypervisor nodes up and running during the </span></div>
<div><span style="font-size: 10pt;">process. </span></div>
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<div>Looking at older posts I assume that upgrading the engine should be</div>
<div>sufficient, while hypervisor nodes with vdsm 4.14.17 (from 3.4 repos) and</div>
<div>the active VMs <span style="font-size: 10pt;">keep on running. The start of the engine after the upgrade</span></div>
<div><span style="font-size: 10pt;">should catch up and </span><span style="font-size: 10pt;">resync all </span><span style="font-size: 10pt;">states.</span></div>
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<div>Afterwards I clean hypervisor hosts one by one and clean/reinstall it into </div>
<div>the <span style="font-size: 10pt;">cluster?</span></div>
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<div>Thanks in advance.</div>
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<div>Markus</div>
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