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IBM Spectrum Scale HDFS Transparency Ranger Support

Apache Ranger is a centralized security administration solution for Hadoop that enables administrators to create and enforce security policies for HDFS and other Hadoop platform components. Ranger configuration is based on the installation and configuration of HDFS Transparency. Therefore,...

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iSER, RDMA and IBM’s Spectrum Virtualize family of products

Data centers are getting wider day by day. In the initial days they were limited to a single physical site. As the adoption grown, data spread across multiple data centers. These data centers are geographically separated by larger distances. Ethernet plays a key role in the next generation data...

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zHyperLink™ Video Demo

On December 8, 2017, IBM made the DS8886 zHyperLink support generally available. Today’s blog entry introduces a video demo of the zHyperLink technology. Story Board TL;DR , Clients can transparently cut their application response times in half. Pass this video along to your clients so...

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IBM Spectrum Scale HDFS Transparency Short Circuit Write Support

Background • Native HDFS supports short circuit read to read data directly from local file system when HDFS client and target datanode are co-located on the same physical node. • 10% ~ 30% performance gain according to workloads and total reading data size • HDFS Transparency supports short...

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How to configure and performance tuning different system workloads on IBM Spectrum Scale Sharing Nothing Cluster

IBM Spectrum Scale Sharing Nothing Cluster performance tuning guide has been posted and please refer to link before you doing the below change. A restart of IBM Spectrum Scale will be needed to bring into effect any configuration option changes that do not successfully complete with the '-i' ...

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How to configure and performance tuning Spark workloads on IBM Spectrum Scale Sharing Nothing Cluster

IBM Spectrum Scale Sharing Nothing Cluster performance tuning guide has been posted and please refer to link before you doing the below change. Here is the tuning steps. Step1: Configure spark.shuffle.file.buffer By default, this must be configured on $SPARK HOME/conf/spark-defaults.conf...

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How to configure and performance tuning database workloads on IBM Spectrum Scale Sharing Nothing Cluster

IBM Spectrum Scale Sharing Nothing Cluster performance tuning guide has been posted and please refer to link before you doing the below change. If the cluster is focused on database workloads such as SAP HANA/DB2 DPF/DashDB or DIO/AIO, the following configuration options must be tuned: ...

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