Month: April 2013
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Re-Register to vCenter Server using Update Manager Utility
Re-Register to vCenter Server using Update Manager Utility It is necessary to re-register vCenter Server from Update Manager, for example when you change IP Address, Hostname or Certificate of vCenter Server. When you get an error message like below, then you know that you will need to re-register vCenter Server from Update Manager. There was…
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Replace vCenter Server Certificate
Replace vCenter Server Certificate vCenter server uses an automatically generated self-signed certificate after the installation. As with ESXi Server, this may not be desirable in some environment and requires use of a CA signed certificate. As you may be aware when you access vCenter for the first time using vSphere Client or vSphere Web Client,…
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Replace ESXi Certificate
Replace ESXi Certificate The ESXi host uses automatically generated certificates that are created as part of the installation process. These certificates are unique and make it possible to begin using the server, but they are not verifiable and they are not signed by a trusted, well-known certificate authority (CA). Using default certificates might not comply…
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Configure Bulk Licensing
Bulk Licensing Feature of vSphere is especially useful when ESXi servers are deployed by AutoDeploy. As there is not option to specify the license key via Host Profile, Administrator must manually attach license to ESXi Servers. Bulk Licensing allows administrator to use pre-defined license keys to ESXi server automatically including AutoDeployed ESXi server. Send…
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Create a custom ESXi Firewall service
ESXi Server has a built-in Firewall to protect your ESXi Server. There are pre-defined services (source and destination TCP/UDP Port) that you can configure via vSphere Client or CLI, such as permitting or restricting SSH from specified IP Address or Network. These pre-defined services should be sufficient for most of environment. However there may be…
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Configuring Network Coredump to vSphere ESXi Dump Collector
In case of ESXi crash, ESXi Server keeps memory dump in local file system for analysis. You can configure Network Coredump to make ESXi server to send memory dump to vSphere ESXi Dump Collector. Send article as PDF
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Configuring Syslog in ESXi and vSphere Syslog Collector
Syslog in ESXi sever is critical feature that need to be configured properly in order to monitor and troubleshoot vSphere environment efficiently. By default, ESXi server keeps all logging related information on its scratch partition and that will be removed on every restart of ESXi Server. Thus if your ESXi server crashed for whatever the…
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Objective 1.2 – Manage Storage Capacity in a vSphere Environment
Objective 1.2 – Manage Storage Capacity in a vSphere Environment Knowledge Identify storage provisioning methods vSphere support several Storage provisioning methods VMDK based Thin Thick – Lazy Zero Thick – Eager Zero RDM Physical mode Virtual Mode I have already posted about VMDK disk provision types in here. I have already posted about RDM in…
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Configuring RDM
RDM provides a direct access to storage system to VM. There are 2 type of RDMs. Virtual mode Physical mode With Virtual mode, you can still take advantage of vSphere features such as snapshot and FT. For MSCS in vSphere there is a configuration guide available from VMware. I am planning to blog about this…