In the previous post we saw two images one showing the QOS curve as advertised by the python API (image 1) and the other generated by a standalone python script (image 2) Image 1 Image 2 In this post I will cover how we worked out the cost for each I/O size and the associated […]
The SolidFire array is primarily used as an ISCSI target and allows for quality of service on a per volume basis. You can read more about it here. The purpose of these posts are to talk about the QOS functionality and how we can look to monitor this on the Arrays. Some Background.. Recently we […]
I have been recently working on the Meltdown and Spectre bugs and assessing what the impact will be to our servers. As part of this testing we used a tool called SLOB which we use to stress memory accesses (cached reads) and also I/O based on random and sequential I/O. The database in use was […]
Overview In this post we will take a look at Ports the data is gathered by the statport command. We can view different metrics when parsing the data from this command including iops, throughput, latency and queuing. Cache statcmp Cpu statcpu Hosts statvlun / statvlun -hostsum / -vvsum Ports statport -host Volumes statvlun -vvsum Getting […]
Overview In this post we will take a look a Hosts and Volumes the same metrics are available for both so to save duplication of effort and two posts this will be combined. We can gather details on hosts and volumes using the standard statvlun command and we can also pass in a few options […]
Overview In the previous post we covered Cache and will now look at monitoring the cpu performance of the 3PAR Array. Metrics are gathered using the statcpu command. Cache statcmp Cpu statcpu Hosts statvlun / statvlun -hostsum Ports statport -host Volumes statvlun -vvsum Getting started.. How do I run the statcpu command? Below shows how […]
Overview This series of posts will look at HPE 3PAR performance monitoring using the main stat commands for realtime analysis and culminate in a similar Grafana/Influxdb solution to look at historical statistics. I will be covering the following key areas: Cache statcmp Cpu statcpu Hosts statvlun / statvlun -hostsum Ports statport -host Volumes statvlun -vvsum I will […]
Overview This post aims to cover overall array stats. We will create one dashboard to show the overall array stats and then we will break this down into a secondary dashboard focusing on individual array ports and how we need these to identify workloads driving IOPS and BW, this view will also help identify if […]
Overview When I started writing this blog I realised that I had more than one parsing script based on the statistics I was looking to gather and as such I have now merged these into four wrapper scripts and single perl script. This post is really a copy of Hosts but for Volumes with new […]
Overview In the first blog in this series we added in IOPS and explained how we could look to add in Bandwidth and Latency. In this post we will cover off creating the whole view and adding in the next post we will cover adding in volumes and server host bus adapter details. Bringing it […]
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