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  • Comparing SD and USB 3 Storage Performance With Raspberry Pi4B

    Mar 29, 2021 raspberry performance
    Comparing SD and USB 3 Storage Performance With Raspberry Pi4B

    Following on from base Ubuntu build here I look at the comparing the storage performance of SD and USB. SD Card Performance Linux FIO tool will be used to measure sequential write performance of a 4GB file: fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 …

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  • NetApp Cloud OnTap For AWS

    Dec 12, 2014 aws netapp
    NetApp Cloud OnTap For AWS

    NetApp has often been a pioneer of bleeding edge concepts in storage. When designing data ONTAP and the WAFL file system they were the first to look at creating a virtual control plane for data. They also pioneered fully non disruptive upgrades when the introduced clustered data ONTAP. They then introduced ONTAP Edge …

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  • VMware Virtual Volumes Deep Dive

    Oct 24, 2014 vvols vsphere
    VMware Virtual Volumes Deep Dive

    How vVols Will Help The constraints and issues which VVOLs address include, LUNs introduce constrains such as the quantity of LUNs we can present, having lots of LUNs each with unused space is in efficient as such we currently shared VMs on data stores and this gives a lack of granular control for passing storage …

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  • NetApp FAS IOPS Theoretical Maximum & Workload Aggregate Load Balancing

    Aug 26, 2014 netapp performance
    NetApp FAS IOPS Theoretical Maximum & Workload Aggregate Load Balancing

    To achieve good performance for a virtualized workload your Storage Area Network (SAN) should deliver high IOps with a predictable low latency. If you are using a good flash system where IOps (Input/Output Operations Per Second) effectively become an unlimited resource then latency will probably be your limiting …

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  • Windows Server 2012 - SAN Performance

    Mar 3, 2014 windows performance
    Windows Server 2012 - SAN Performance

    In a newly deployed Windows Server 2012 HyperV environment with around sixty nodes, running a couple of hundred Windows Server 2012 virtual machines running various applications. We found the EMC VMX storage which underpinned this became massively busy with Write IO at around 3am, the Write IO was mostly coming from …

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Darryl Cauldwell

Technologist, perpetual student, teacher, continual incremental improvement.
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