An administrator originally configured the storage for an Oracle database running on Nutanix NDB using ASMLib. The administrator would like to scale…

When an administrator needs to scale the size of an Oracle database running on Nutanix NDB and

originally configured using ASMLib (Automatic Storage Management Library), the most efficient

approach is to use NDB’s built-in scaling ability to resize existing vDisks. NDB supports dynamic

resizing of virtual disks (vDisks) associated with database VMs, allowing the administrator to increase

storage capacity without disrupting the database or requiring complex migrations. This method

leverages Nutanix’s storage integration, resizing the underlying vDisks and updating the ASMLib

configuration to reflect the new size, ensuring seamless operation.

Option A (Leverage the scaling ability built into NDB to resize existing vDisks) is correct as it is the

most efficient, native NDB feature for scaling storage.

Option B (Extend the size by adding new vDisks) is incorrect because adding new vDisks requires

additional configuration (e.g., ASM disk group adjustments), making it less efficient than resizing.

Option C (Create a new, larger database and migrate) is incorrect because migration is time-

consuming and unnecessary when resizing is supported.

Option D (Mount an iSCSI LUN and extend the database onto the new LUN) is incorrect because iSCSI

LUNs are not the preferred method in NDB, and resizing vDisks is more integrated.

This approach minimizes downtime and complexity.

Reference:

Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Database Servers, Section: Scaling

Storage for Databases

Nutanix Support & Insights, Knowledge Base Article: "Resizing vDisks for Oracle Databases in NDB"

Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 4: Manage

Database Servers