Skip to main content

Transparent Page Sharing (TPS) is disabled by default in latest ESXi 5.5 patch

I just heared Transparent Page Sharing (TPS) is disabled by default in latest ESXi 5.5 patch. You may concern about that if your IT budget is tight since it means you need more memory for heavy virtual machines.

听说ESXi 5.5最新的patch里把TPS禁用了,专门研究了一下。觉得这对IT预算紧张的企业可能是个坏消息,因为这意味着你需要更多的内存应付大型虚拟机。



Here is some information about the change.

What is Transparent Page Sharing (TPS) ?

Why is Transparent Page Sharing (TPS) disabled by default?

How to re-enable Transparent Page Sharing (TPS) ?

You could find how Transparent Page Sharing (TPS) works now on your environment by esxtop by press m.

[caption id="attachment_511" align="alignnone" width="300"]Transparent Page Sharing (TPS) in esxtop Transparent Page Sharing (TPS) in esxtop[/caption]

Chinese Version

英文版中有TPS和这次变更的链接,以下为中文意思。

什么是TPS?

为什么TPS被默认关闭了?

如何重新启用TPS?

通过esxtop中点击m键,你可以看到当前TPS如何应用于你的系统。(参见英文版中的截图)

Popular posts from this blog

Connect-NsxtServer shows "Unable to connect to the remote server"

When you run Connect-NsxtServer in the PowerCLI, it may show "Unable to connect to the remote server".  Because the error message is a little bit confusing with other login issues. It's not easy to troubleshoot. The actual reason is the NSX-T uses a self-signed certificate, and the PowerCLI cannot accept the certificate automatically. The fix is super easy. You need to set the PowerCLI to ignore the invalid certificate with the following command: Set-PowerCLIConfiguration -Scope User -InvalidCertificateAction:Ignore -Confirm:$false

Setup Terraform and Ansible for Windows provisionon CentOS

Provisioning Windows machines with Terraform is easy. Configuring Windows machines with Ansible is also not complex. However, it's a little bit challenging to combine them. The following steps are some ideas about handling a Windows machine from provisioning to post configuration without modifying the winrm configuration on the guest operating system. Install required repos for yum. yum -y install https://repo.ius.io/ius-release-el7.rpm yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm yum -y install https://packages.endpointdev.com/rhel/7/os/x86_64/endpoint-repo.x86_64.rpm yum -y install epel-release yum -y install yum-utils yum-config-manager --add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo Install  Terraform . sudo yum -y install terraform Install  Ansible . sudo yum -y install ansible Install  Kerberos . yum -y install gcc python-devel krb5-devel krb5-libs krb5-workstation

How to List All Users in Terraform Cloud

Terraform has a rich API. However, the API documentation does not mention how to list all users. We can leverage the organization membership API and the PowerShell command  Invoke-RestMethod  to get a user list. 1. Create an organization token in Terraform Cloud. 2. Create the token variable ( $Token ) in PowerShell. $Token = "abcde" 3. Create the API parameters variable in PowerShell. $params = @{ Uri = "https://app.terraform.io/api/v2/organizations/ZHENGWU/organization-memberships?page%5Bsize%5D=100" Authentication = "Bearer" Token = $Token ContentType = "application/vnd.api+json" } Note: You need to replace ZHENGWU with your own organization name. And I used 100 at the end of the URI to retrieve the first 100 users. It can be any number.  4. Retrieve the API return and list the user's email address. $Test = Invoke-RestMethod @params $Test.data.attributes.email