All posts in category VMware vCenter

How to quickly discover a "VM to Resource Pool" mapping

Everyone knows the situation in where a (s)VMotion asks you to select a Resource Pool. I would love to see that VMware automatically selects the current VM’s Resource Pool but unfortunately we have to make a selection since it defaults to the cluster. When we leave it to default it obviously causes the VM to […]

VMware vCenter Storage Views: Partial/No Redundancy

While exploring my software iSCSI initator environment I noticed that all my VM’s on every host are reporting a “Partial/No Redundancy”-status within the Multipathing Status even though I have Round Robin in place and thus 2 paths to the storage. This behavior is a bug as confirmed by VMware Technical Support. The rule for displaying […]

Creating easy to identify LeftHand Volumes on ESX/vSphere

Coming from mostly HP EVA environments I got used to identify a Volume/LUN by there LUN number which was a real unique identifier. I could always “talk” LUN number and be sure that it was understood and unique. So ever since I’ve been working with our LeftHand environment I disliked the way that every Volume/LUN is marked […]

Automatic Rescan of your HBAs… How to enable this again

Duncan Epping wrote an helpful article about disabling the automatic rescan of HBA’s whenever you add, remove of expand a datastore. Remember, turning this off isn’t a best practise for production environments but could come in handy when building a new site while avoiding “rescan storms”.       Now the trick is to enable […]

VMware Update Manager on vSphere – Check the Firewall!

Yesterday I noticed something strange while updating a VI3 environment to vSphere with Update Manager 4.0 The update of update manager went fine as well as the creation of new baselines. Whenever I remediated a Host, the Host went into maintenance mode and the remediate process hangs on 33%. This same behaviour occured when I […]