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Logical Block Provisioning feature of the SCSI SBC-3 standard

The space allocation functionality, also known as SCSI thin provisioning, uses the Logical Block Provisioning feature as defined in the SCSI SBC-3 standard. Only hosts that support this standard can use the space allocation functionality in Data ONTAP.

When you enable the space allocation functionality, you turn on the following thin provisioning features for standard SCSI features:
  • Unmapping and reporting space usage for space reclamation
  • Reporting resource exhaustion errors
  • Reporting low space warnings for thin provisioning thresholds