Logical unit options and settings for IBM XIV systems

Logical unit (LU) settings for IBM® XIV® Storage System systems are configurable at the LU level.

Table 1 lists the options that must be set for each LU that is accessed by other hosts. LUs that are accessed by hosts can be configured differently. You can use the IBM® XIV® Storage System and XIV® Nextra™ Storage Management GUI or CLI to change these settings.

Table 1. IBM XIV options and required settings
Option Data type Range IBM® XIV® Storage System and XIV® Nextra™ default setting System setting
Capacity int 17,179,869,184 bytes (17 GB), up to the total system capacity

OR

Block count		 None Any
Notes:
  • The system supports up to 1 PB.
  • LUNs are allocated in 17-GB chunks.
  • Using a block count results in LUNs that are arbitrarily sized, but that still consume multiples of 17 GB.
Parent topic: Configuration settings for IBM XIV systems