back to article Storage: Never mind the quantity, feel the quality of service

Today's organisations must store ever-increasing volumes of digital information arriving in an ever-wider range of formats. At the same time, more and more data-hungry applications are coming on stream. It is harder than ever for your storage to provide each application with the appropriate quality of service (QoS). How can …

  1. Anonymous Coward
    Anonymous Coward

    QoS

    It's all good and well putting QoS on the storage, but in hyper converged solutions how to we QoS both the storage and the VMs when they are on the same hardware? Something has to give, and from what I've heard from the SDS guys it's likely to be the VMs that suffer horribly.

    1. Anonymous Coward
      Anonymous Coward

      Re: QoS

      In a hyper converged environment you probably wouldn't need to or be able to implement QOS at the storage layer, with HC you essentially have an appliance to the hypervisor and so have limited use cases outside meaning QOS is probably best implemented at that level.

      To implement Storage QOS succesfully you need a detailed understanding of the underlying storage hardware and connecting infrastructure, which in a HC environment is likely just a bunch of disks with a DAS attachment and maybe some network based mirroring for H/A. Which means you don't really have an end to end picture of all the performance dependencies, you're really just handing everything off to the driver stack which simply forwards to the next in line.

      If you have to take a broader view and say I need this storage to support more than just my VM's then storage based QOS is very useful. It's highly likely the non VM stuff will prove to be the noisy neighbour (that's why it aint a VM), in which case you'll need a common method of providing QOS outside the hypervisor. If you don't have that capability then you have to start building performance silo's, which come to think of it seems to be what a lot of SDS is about (DAS for the new century).

  2. thegreatsatan

    Nice commercial

    So Fujitsu wrote this and you put your name on it. Cute.

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  4. This post has been deleted by its author

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