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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 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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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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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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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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