Flexible Tier (Auto Storage Layering) Setup; Registering The Thin Provisioning Feature License - Fujitsu ETERNUS DX80 S2 User Manual

Chapter 3 Setup

3.2 Flexible Tier (Auto Storage Layering) Setup

3.2 Flexible Tier (Auto Storage Layering) Setup
The automatic storage layering function automatically reallocates data in the ETERNUS DX Disk storage
system according to the data access frequency to optimize performance and costs. This function performs
storage layering by moving frequently accessed data to high speed drives such as SSDs and less frequently
accessed data to cost effective disks with large capacities.
Data is reallocated in smaller units (blocks) than volumes.
Data is redistributed based on the performance information that is monitored and obtained by ETERNUS SF
Storage Cruiser. This function enables Nearline disks to be used while maintaining performance, reducing the
startup cost.
When drives are added to a pool, the physical capacity is allocated unevenly among the RAID groups in the
pool. By using the Flexible Tier Pool balancing function, the allocated physical capacity as well as the usage
rate of the physical disks in the pool can be balanced.
To use the Flexible Tier (auto storage layering) function, register the Thin Provisioning Feature License in the
ETERNUS DX Disk storage system and enable the Flexible Tier function.
3.2.1

Registering the Thin Provisioning Feature License

The Thin Provisioning Feature License is a unique license to each ETERNUS DX Disk storage system. This
license cannot be registered in other ETERNUS DX Disk storage systems.
■ For the EMEA&I region
After the Thin Provisioning Feature License is purchased, it is activated by registering a Thin Provisioning
Feature license key in the ETERNUS DX Disk storage system.
When purchasing the Thin Provisioning Feature, a Transaction Authentication Number (TAN) and the URL of
the web-site from which the license key may be obtained are notified by e-mail.
■ For regions other than EMEA&I
When the Thin Provisioning Feature License is purchased separately, register the Thin Provisioning Feature
License in the ETERNUS DX Disk storage system.
For details on how to register the license, refer to the "Feature activation licenses" document that is provided
with the Thin Provisioning Feature License.
ETERNUS DX80 S2/DX90 S2 Disk storage system User's Guide -Operation-
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