Home > Blogs > VMware VROOM! Blog


Performance Study of VMware vStorage Thin Provisioning

vStorage Thin Provisioning, a key
component of VMware vSphere™, is a technology that redefines storage
provisioning by allocating space on demand to the virtual disks. We recently
published a paper that gives the details of this feature and discusses
experiments conducted to study the performance of thin-provisioned disks in a
VMware vSphere™ environment.


The data we have collected reveals

  • Both
    thin and thick disks perform similarly on various workloads.
  • Thin
    provisioned disks show similar performance trends as thick disks do when
    scaled across different hosts.
  • External
    fragmentation has negligible impact on the performance of thin provisioned
    disks.
  • There is insignificant performance impact on existing
    thick disks if thin provisioning is implemented on a shared array.

Thin
The
above graph shows that the performance of a thin provisioned disk matches the
performance of a thick disk. For more details on the environment of these tests
and the experiments conducted we invite you to read the full whitepaper at http://www.vmware.com/pdf/vsp_4_thinprov_perf.pdf.

2 thoughts on “Performance Study of VMware vStorage Thin Provisioning

  1. Eric Gray

    Nice work, Performance Team!

    Reply
  2. esl

    Why are they so similar? Seems like very minute differences.

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

*