{"id":315472,"date":"2023-11-08T13:29:29","date_gmt":"2023-11-08T13:29:29","guid":{"rendered":"\/forum\/forums\/reply\/315472\/"},"modified":"2023-11-08T13:30:49","modified_gmt":"2023-11-08T13:30:49","slug":"315472","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/315472\/","title":{"rendered":"Reply To: Some of the instance types are greyed out and cannot be selected."},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Hi Ernest, You can avoid this problem by applying for an increase in the Service Quota of the AWS EC2 instance you want to use from the AWS management console. For details on AWS Service Quota and how to make increase requests, please refer to the URL below.&lt;br&gt;&lt;br&gt;<strong>\u25cf\u3000URL<\/strong>&lt;br&gt;<a href=\"https:\/\/docs.aws.amazon.com\/AWSEC2\/latest\/WindowsGuide\/ec2-resource-limits.html\">Amazon EC2 service quotas<\/a>&lt;br&gt;<a href=\"https:\/\/aws.amazon.com\/premiumsupport\/knowledge-center\/ec2-on-demand-instance-vcpu-increase\/?nc1=h_ls\">How do I request an EC2 vCPU limit increase for my On-Demand Instance?<\/a>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p class=&#8221;&rdquo;&rdquo;topic-title-singlethread&rdquo;&rdquo;&#8221;&gt;The following article regarding ServiceQuota for HPC family instances may also be helpful.&lt;br&gt;&lt;br&gt;<strong>\u25cf\u3000AIS Article<\/strong>&lt;br&gt;<a href=\"\/forum\/forums\/topic\/requesting-hpc-instances-or-increasing-quota-on-aws\/\">Requesting HPC instances or increasing Quota on AWS<\/a>&lt;\/p&gt;&lt;p&gt;&lt;br&gt;&lt;br&gt;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-315472","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi Ernest, You can avoid this problem by applying for an increase in the Service Quota of the AWS EC2 instance you want to use from the AWS management console. 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