DB VM Parameters

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This section describes the DB VM parameters you define while creating the DB VM group profile. Use this information in conjunction with these activities:

Planning DB VMs, as described in DB VM Planning Worksheets (Optional).
Creating DB VM group profile with the MCMU BUI, as described in Create a DB VM Group Profile (BUI), or CLI described in Create a DB VM Group Profile (CLI).

Public Hostname

For each VM, specify a unique hostname. This is the name that you add to your DNS. It is the hostname that is used for client access to the VM.

The hostname can be up to 25 alpha-numeric characters and include the - (hyphen) symbol.

Number of Cores

For each VM, specify the number of cores (0 - 12). Before the creation of VMs, there are 24 cores available (12 on each node that are available for VMs). MCMU keeps track of how many cores are assigned to VMs and only enables you to select a number from what is available.

Cores that are not assigned to VMs are pooled together and are available as shared cores.

If you select 0 (zero) cores, the VM uses shared cores. After the DB VM group is deployed, you can change the number of cores on the VMs. See Edit a DB VM Group Profile (BUI).

Password

For each VM, set a password for the oracle user and mcinstall user.

If you select image:A graphic showing the checkbox. , MCMU sets the password to a default value (see User Accounts).

For details about MCMU users, see User Accounts. Password policies vary based on the security profile that was selected. See MCMU Password Policies and Security Profile.

SCAN Name

When you create database clusters, the VMs from both compute nodes are clustered together. Provide a SCAN name for the database cluster that you are setting up.

SCAN is a feature used in Oracle RAC configurations. The SCAN provides a single name for clients to access any database running in a cluster. MCMU provides a default SCAN, or you can specify your own name. The SCAN must be a name that is up to 15 characters long. You can use lowercase letters, numbers and the - (hyphen) symbol.

GI Patch Level

The MCMU BUI provides a list of patch levels that you can choose.

System Disk Group

Select the level of redundancy that you want for the Oracle Cluster Registry (OCR) voting disk group, or SYSTEM disk group. Choose one of these levels:

Normal – Provides three voting disks.
High – Provides five voting disks.

Data Disk Group

In the Define Cluster page, the data disk group redundancy level is displayed. The value is based on what was selected for System Disk Group in a previous page.

DATA/RECO Disk Group Split

You can configure the percentage of storage that the DATA disk group and RECO disk group use. The default is 80% DATA, 20% RECO.

Use the slider to assign percentage values in 10% increments.

Note - The percentage number shown is the amount for DATA, with the remaining percentage applied to RECO.

REDO Disk Group

In the Define Cluster page, the REDO disk group redundancy level is displayed. This disk group is always configured for high redundancy (provides protection against two disk failures).

RECO Disk Group

In the Define Cluster page, the RECO disk group redundancy level is displayed. The value is based on what was selected for System Disk Group in a previous page.