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Dell PowerFlex Appliance with PowerFlex 4.x Administration Guide

Migrating to NVMe over TCP on VMware ESXi

This section contains instructions for migrating a VMFS datastore from SDC to NVMe over TCP using Storage vMotion.

PowerFlex offers the following options for migrating from SDC to NVMe over TCP on VMware ESXi:

  • Online migration using Storage vMotion (VMFS only), as described in this section

    The standard way of using Storage vMotion to move storage now also supports switching protocols by migrating to a new datastore.

  • Offline conversion (VMFS only)

    Offline conversion is a new option for converting an existing VMFS datastore from SCSI (SDC) to NVMe over TCP without having to copy all the data over the network. This option is covered in this KB: SCSI to NVMe offline VMFS datastore migration steps

Dell Technologies recommends using VMware Storage vMotion to migrate data from a volume that is presented by SDC to one presented by NVMe over TCP.

This migration is intended for VMDK (noncluster) customers who want to convert their SDC to NVMe over TCP.

Linux environments, VMware ESXi clusters, and RDMs are not included in this section.

Requirements

See the following VMware product documentation links for information about Storage vMotion requirements and limitations: Storage vMotion requirements and limitations

See the following VMware product documentation links for information about requirements and limitations of VMware NVMe Storage: Requirements and limitations of VMware NVMe storage

Requirements for VMware NVMe storage

See the following VMware KB article for more details about storage migration (Storage vMotion), with the virtual machine powered on: Migrating virtual machines with raw device mappings

Ensure that you satisfy these requirements before you begin the migration:

  • Ensure the VMware ESXi version is 7.0u3 or later.
  • Ensure the PowerFlex version is 4.5.x.

Workflow

The following steps summarize the workflow that you need to follow to migrate fro SDC to NVMe over TCP using Storage vMotion:

  1. Create and map a new volume of equal or greater size than the current VMFS datastore via NVMe over TCP to the same host.
  2. Scan for the newly mapped volume.
  3. Create a new datastore on the NVMe over TCP volume.
  4. Perform the standard data migration using Storage vMotion by using a non-disruptive process.

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