VCAP-DTD | Objective 5.4 | Determine Performance Requirements for a View Physical Storage Design

Establish IOPS Requirements

IOPS requirements will be made available from capacity planning reports and analysis.

Way back in Objective 1.2 I went into some detail on how to calculate IOPS, so click the link and re-visit that page.

Jim Moyle has written a great white paper Windows 7 IOPS for VDI: Deep Dive, I’d highly recommend giving this paper a thorough read.

Establish throughput requirements

Throughput requirements will be made available from capacity planning reports and analysis.

Determine storage network requirements

Shared storage should be presented to hosts by using redundant SAN fabric that encompasses redundant storage adapters in each host, SAN switches, and storage array processors. View desktops can be deployed on FC, iSCSI, NFS and locally attached storage each with their own benefits and downsides. Business requirements will usually play a large part in the storage decision for VDI.

Remember, if using jumbo frames to increase MTU size and potentially improve performance, to ensure the MTU setting is changed end to end. From the physical switch down to the vNIC in the desktop, else you could start seeing issues with network fragmentation.

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