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Is high vSphere storage latency always a bad thing?

Posted By: viktoriouson: January 08, 2013In: Storage, Virtualization1 Comment

Recently I had a discussion about storage latency, the question was: “Is high storage latency always a bad thing?”. When we look at latency in a vSphere environment the esxtop co... Read more

LUNs reappearing after succesful removal from ESXi

Posted By: viktoriouson: November 08, 2012In: Storage, VirtualizationNo Comments

In an earlier article I discussed the procedure to remove a LUN from an ESXi host. The exact steps are available in this VMware KB article which will be summarized below: Confirm the LUN is... Read more

vSphere Howto: Remove a LUN from an ESXi server

Posted By: viktoriouson: November 07, 2012In: Storage, Virtualization2 Comments

In most cases you will add VMFS volumes (LUNs) to your vSphere environment, because most of the time your environment will grow. Adding a LUN is very simple: Just configure the masking corre... Read more

Storage IO Control: What’s the optimal congestion threshold?

Posted By: viktoriouson: July 05, 2012In: Storage, VirtualizationNo Comments

When using Storage IO Control (SIOC), you have to set a congestion threshold. The congestion threshold determines when SIOC kicks in to regulate the storage queues. Regulating these queues r... Read more

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