{"id":2570,"date":"2017-05-24T10:53:55","date_gmt":"2017-05-24T13:53:55","guid":{"rendered":"http:\/\/www.dbarj.com.br\/?p=2570\/"},"modified":"2017-07-04T08:18:32","modified_gmt":"2017-07-04T11:18:32","slug":"ocm-12c-preparation-prepare-your-environment","status":"publish","type":"post","link":"https:\/\/www.dbarj.com.br\/en\/2017\/05\/ocm-12c-preparation-prepare-your-environment\/","title":{"rendered":"OCM 12c Preparation &#8211; Prepare your Environment"},"content":{"rendered":"<p>As we have many situations to deal with in the topics, my recommendation is creating 6 VMs using Virtualbox:<\/p>\n<ol>\n<li><strong>Oracle DB Single Instance +\u00a0Oracle Data Guard<\/strong>\n<ul>\n<li>RAM: 4G<\/li>\n<li>\/ = 10G ; SWAP = 8G ; \/u01 = 40G (Ora Binaries + Datafiles)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Oracle Enterprise Manager +\u00a0<\/strong><strong>Oracle Data Guard<\/strong>\n<ul>\n<li>RAM: 6G<\/li>\n<li>\/ = 10G ; SWAP = 8G ; \/u01 = 70G (Ora Binaries + EM Binaries + Datafiles)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Oracle RAC Node 1 &#8211; Hub<\/strong><\/li>\n<li><strong>Oracle RAC Node 2 &#8211; Hub<\/strong><\/li>\n<li><strong>Oracle RAC Node 3 &#8211;\u00a0Hub<\/strong><\/li>\n<li><strong>Oracle RAC Node 4 &#8211; Leaf<\/strong>\n<ul>\n<li>For all RACs:<\/li>\n<li>RAM: ( Hub with mgmtdb: 4G \/ Other Hubs: 3.4G \/ Leafs: 1.6G )<\/li>\n<li>\/ = 10G ; SWAP = 8G ; \/u01 = 16G (Ora Binaries)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>With those 6 servers, you can practice:<\/p>\n<ul>\n<li>Single Instances (CDB + Non CDB + PDB Clone) and EM using Servers 1 and 2 above.<\/li>\n<li>DataGuard with Primary + Far Sync + Physical\/Logical Stdby, also using Servers 1 and 2. You can simulate Far Sync instances creating them on the same server.<\/li>\n<li>RAC (Hub or Leaf nodes) with\u00a0Servers 3 to\u00a06 (use Servers 5 and 6 to play with adding\/removing nodes)<\/li>\n<\/ul>\n<p>I won&#8217;t show\u00a0here how to create an VirtualBox and install Oracle Linux software, as you can find about 533,000 results in 0.34 seconds using Google.\u00a0I recommend using the standard Linux installation that comes with <strong>643 RPMs<\/strong> and\u00a0add the minimum packages necessary for oracle with\u00a0<strong>oracle-rdbms-server-12cR1-preinstall.x86_64<\/strong> rpm.<\/p>\n<p>When using a 16GB memory notebook to practice with the Virtualbox VMs, will be hard to have all the machines up and running at the same time. So only have turned on the machines which are necessary for the correspondent skill set.<\/p>\n<p>Try to create VM&#8217;s with the least possible\u00a0<strong>RAM <\/strong>and<strong> Disk memory allocated<\/strong>.<\/p>\n<ul>\n<li>RAM Memory utilization of Oracle Linux 6.5 running w\/o Grid or Oracle softwares &#8211; <strong><span style=\"color: #ff0000;\">157 MBs.<\/span><\/strong><\/li>\n<li>So 4 GBs of RAM should be enough for all scenario (except EM machine, which I recommend 6 GBs)<\/li>\n<li>In all servers I do recommend around 10G for &#8220;\/&#8221; and 8G for SWAP (keep your unzipped installers on a shared external folder).<\/li>\n<li>On RAC Servers, add external disks for ASM Disks.<\/li>\n<\/ul>\n<p>And remember, the official Oracle Doc is the only material that you will have on the exam day,\u00a0so being fast and getting as soon as possible to the item in the DOC is a necessity. Have it shared in all your servers.<\/p>\n<br>\r\nClick here to go back to the <a title=\"OCM 12c Preparation\" href=\"\/?page_id=2255\">Main OCM 12c Preparation<\/a> page.\r\n<br><br>\r\nHave you enjoyed? Please leave a comment or give a \ud83d\udc4d!\n<div class='watch-action'><div class='watch-position align-left'><div class='action-like'><a class='lbg-style2 like-2570 jlk' href='javascript:void(0)' data-task='like' data-post_id='2570' data-nonce='de4404f630' rel='nofollow'><img class='wti-pixel' src='https:\/\/www.dbarj.com.br\/wp-content\/plugins\/wti-like-post\/images\/pixel.gif' title='Like' \/><span class='lc-2570 lc'>+9<\/span><\/a><\/div><\/div> <div class='status-2570 status align-left'><\/div><\/div><div class='wti-clear'><\/div>","protected":false},"excerpt":{"rendered":"<p>As we have many situations to deal with in the topics, my recommendation is creating 6 VMs using Virtualbox: Oracle DB Single Instance +\u00a0Oracle Data Guard RAM: 4G \/ = 10G ; SWAP = 8G ; \/u01 = 40G (Ora Binaries + Datafiles) Oracle Enterprise Manager +\u00a0Oracle Data Guard RAM: 6G \/ = 10G ; &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/www.dbarj.com.br\/en\/2017\/05\/ocm-12c-preparation-prepare-your-environment\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-2570","post","type-post","status-publish","format-standard","hentry","category-ocm12c-en","item-wrap"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>OCM 12c Preparation - Prepare your Environment - DBA - Rodrigo Jorge - Oracle Tips and Guides<\/title>\n<meta name=\"description\" content=\"Recommended Environment for Oracle OCM 12c Certification.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbarj.com.br\/en\/2017\/05\/ocm-12c-preparation-prepare-your-environment\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DBA RJ\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2017\\\/05\\\/ocm-12c-preparation-prepare-your-environment\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/2017\\\/05\\\/ocm-12c-preparation-prepare-your-environment\\\/\"},\"author\":{\"name\":\"DBA RJ\",\"@id\":\"https:\\\/\\\/www.dbarj.com.br\\\/en\\\/#\\\/schema\\\/person\\\/28a44ca3a6633fe4156ad1ea209d40a9\"},\"headline\":\"OCM 12c Preparation &#8211; 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