{
  "date": "2016-06-20T17:15:09",
  "slug": "asm-iostats",
  "link": "https://www.dbi-services.com/blog/asm-iostats/",
  "title": {
    "rendered": "ASM iostats"
  },
  "content": {
    "rendered": "<h2>By Franck Pachot</h2>\n<p>.<br />\nA few screenshots and a link here. Sysadmins do not like ASM because they don&#8217;t have the tools they like to manage the disks. For example, they don&#8217;t want to run SQL queries to check performance, and asmcmd iostat is quite limited. Here is a nice way to get I/O statistics easily from command line.<br />\n<!--more--><br />\nThe perl script is from Bertrand Drouvot (do not miss his <a href=\"https://twitter.com/BertrandDrouvot\" target=\"_blank\" rel=\"noopener noreferrer\">twitter profile picture</a>) and is easily downloadable from his blog:<br />\n<a href=\"https://bdrouvot.wordpress.com/2013/10/04/asm-metrics-are-a-gold-mine-welcome-to-asm_metrics-pl-a-new-utility-to-extract-and-to-manipulate-them-in-real-time/\" target=\"_blank\" rel=\"noopener noreferrer\">https://bdrouvot.wordpress.com/2013/10/04/asm-metrics-are-a-gold-mine-welcome-to-asm_metrics-pl-a-new-utility-to-extract-and-to-manipulate-them-in-real-time/<br />\n</a></p>\n<p>It&#8217;s only queries on ASM instance, so no risk.</p>\n<p>I order to show the relevance, I took screenshots from this script and the XtremIO console from a system where all ASM disks, and only them, are on the XtremIO brick so you can compare statistics from the storage array and from the ASM instance.</p>\n<h3>Bandwidth</h3>\n<p><a href=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.18.55.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.18.55.png\" alt=\"ASMIOScreenshot 2016-06-20 15.18.55\" width=\"1920\" height=\"1080\" class=\"alignnone size-full wp-image-9344\" /></a></p>\n<h3>IOPS</h3>\n<p><a href=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.19.08.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.19.08.png\" alt=\"ASMIOScreenshot 2016-06-20 15.19.08\" width=\"1920\" height=\"1080\" class=\"alignnone size-full wp-image-9345\" /></a></p>\n<h3>Latency</h3>\n<p><a href=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.19.17.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https://www.dbi-services.com/blog/wp-content/uploads/sites/2/2022/04/ASMIOScreenshot-2016-06-20-15.19.17.png\" alt=\"ASMIOScreenshot 2016-06-20 15.19.17\" width=\"1920\" height=\"1080\" class=\"alignnone size-full wp-image-9346\" /></a></p>\n",
    "protected": false
  }
}