Dell PowerFlex Manager 4.6.x CLI Reference Guide

To ensure data protection during server failures, PowerFlex reserves 10 percent of its capacity by default, instead of allowing this capacity to be used for volume allocation. To ensure full system protection in the event of a node failure, the spare capacity must be at least equal to the amount of capacity in the node containing the maximum capacity or the maximum Fault Set capacity.

If all nodes contain equal capacity, you should set the capacity value to at least 1/N of the total capacity (where N is the number of SDS nodes).

Syntax

scli --modify_spare_policy (((--protection_domain_id <ID> | --protection_domain_name <NAME>) --storage_pool_name <NAME>) | --storage_pool_id <ID>) --spare_percentage <PERCENT> 
  [--i_am_sure]

Parameters

--protection_domain_id <ID>

Protection Domain ID

--protection_domain_name <NAME>

Protection Domain name

--storage_pool_name <NAME>

Storage Pool name

--storage_pool_id <ID>

Storage Pool ID

--spare_percentage <PERCENT>

Percentage of the total capacity to be set aside as spare

--i_am_sure

Skip the safety questions for command execution. (For example: “This could damage the stored data. Are you sure?”)