A cluster has an RF3 storage container with many VMs. Before the cluster runs out of space, the administrator has created a new RF2 storage container and would like to live migrate the vDisks. Which check should be done before performing vDisk migration?

Before migrating a VM or its vDisks to a different storage container, it is mandatory to remove the VM from any Protection Domain or Protection Policy. The Nutanix platform prohibits the migration of protected VMs to prevent inconsistencies in the data protection and disaster recovery configuration. The administrator must first unprotect the VM, perform the migration, and then re-apply the protection policy. This ensures the integrity of the snapshot and replication chain.

A. Validate network latency is below 5 milliseconds. This is a requirement for synchronous replication between sites (Metro Availability), not for a vDisk migration within the same cluster.
C. Verify Multichannel Support is enabled. SMB Multichannel is a performance feature for Nutanix Files (SMB shares) and is not relevant to the underlying block storage vDisk migration process.
D. Ensure storage optimization options match between storage containers. This is incorrect. Nutanix supports migrating vDisks between containers with different storage optimization settings (e.g., compression, deduplication). The data is transformed to match the destination container's policy during the migration.

1. Prism Web Console Guide (AOS 6.5), Chapter: VM Management, Section: Migrating a VM or vDisk to a Different Storage Container:

"You cannot migrate a VM that is part of a protection domain. To migrate a protected VM, you must first remove it from the protection domain, migrate the VM, and then add it back to the protection domain." This directly supports answer B.

"You can migrate vDisks between storage containers with different settings for storage optimization features (compression, deduplication, or erasure coding)." This directly refutes answer D.

2. Nutanix Metro Availability Witness Guide (Version 2.1), Chapter: Requirements and Recommendations, Section: Network Requirements:

"The round trip latency (RTT) between the Nutanix clusters at the two sites must be less than 5 milliseconds (ms) for synchronous replication." This confirms that the 5ms latency requirement is for inter-site synchronous replication, not intra-cluster operations, refuting answer A.

3. Nutanix Files User Guide (Version 4.4), Chapter: SMB Share Management, Section: SMB Share Properties:

"Enable multichannel: Select to enable SMB multichannel on the share. SMB multichannel allows clients to establish multiple network connections to a file server over a single network interface card (NIC) or multiple NICs." This shows that Multichannel is a Nutanix Files feature, making answer C irrelevant to the question's scenario.