Thursday, July 14, 2011

Whats new in Vsphere 5.0 VMFS 5.0

Lot has changed with vSphere 5.0 and so has one of the most under-appreciated “features”…. VMFS. VMFS has been substantially changed VMFS-5 uses GPT instead of MBR

  • VMFS-5 supports volumes up to 64TB
    • This includes Pass-through RDMs!
  • VMFS-5 uses a Unified Blocksize –> 1MB
  • VMFS-5 uses smaller Sub-Blocks
    • ~30.000 8KB blocks versus ~3000 64KB blocks with VMFS-3
  • VMFS-5 has support for very small files (1KB)
  • Non-disruptive upgrade from VMFS-3 to VMFS-5
  • ATS locking enhancements

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