Space Reclamation / UNMAP

• How to Check for Dead Space
• VMFS Capacity Monitoring in a Data Reducing World

VMFS UNMAP in vSphere 5.5 through 6.0

How to run:

• Running UNMAP via SSH 
• vRealize Orchestrator Workflow
• PowerActions Fling UNMAP
• UNMAP PowerCLI Script
  • Unattended version
• FlashArray vSphere Web Client Plugin

Technical Details:

• Security Permissions for Running UNMAP
• UNMAP Block Count ESXi 5.5
  • Changed behavior with block count in 5.5 P3 +
  • VMFS UNMAP switches block count

VMFS UNMAP in vSphere 6.5

• Automatic UNMAP in vSphere 6.5
• Configuring VMFS 6 UNMAP with PowerCLI
• Monitoring Automatic VMFS-6 UNMAP in ESXi
• Issue with Manual VMFS-6 UNMAP and Block Count

In-Guest UNMAP in vSphere 6.0 and 6.5

• Reclaiming Space In-Guest
• In-Guest UNMAP, EnableBlockDelete and VMFS-6
• vSphere 6.0 In-Guest UNMAP Support
• vSphere 6.5 In-Guest UNMAP Support
  • CBT Support
  • ESXi 6.5 Patch for failed reclamations
• In-Guest UNMAP and VMware Snapshots