{"version":"1.0","provider_name":"Paul S. Randal","provider_url":"https:\/\/www.sqlskills.com\/blogs\/paul","title":"The Curious Case of... finding long IAM chains - Paul S. Randal","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EYogE6hqjg\"><a href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/the-curious-case-of-finding-long-iam-chains\/\">The Curious Case of&#8230; finding long IAM chains<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.sqlskills.com\/blogs\/paul\/the-curious-case-of-finding-long-iam-chains\/embed\/#?secret=EYogE6hqjg\" width=\"600\" height=\"338\" title=\"&#8220;The Curious Case of&#8230; finding long IAM chains&#8221; &#8212; Paul S. Randal\" data-secret=\"EYogE6hqjg\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.sqlskills.com\/blogs\/paul\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"In the previous Curious Case I described an issue Jonathan had at a client with very long IAM chains, and the circumstances leading to it. The question was how to prove that some allocation units had IAM chain lengths way out of proportion to the amount of data in the allocation unit, without tediously walking [&hellip;]"}