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Chapter 2 Overview of Disk Array Configuration Setting
I-27
For details on how to expand a dynamic pool, refer to 7.1.2 “Expanding Capacity of a Pool” in
Part IV “Operations”.
Additional
Physical Disks
Configuration Rebuild after Expansion of Pool
1 to 5 RAID6 (4+PQ)
1 to 9 RAID6 (8+PQ)
The pool is rebound. Rebinding the pool influences
access to the existing logical disks which belong to
the pool. The additional space to the pool becomes
available after the rebind process finishes.
6 or more RAID6 (4+PQ)
10 or more RAID6 (8+PQ)
The pool is not rebound. The expansion of the pool
puts no influence on any existing logical disks which
belongs to it. The additional space to the pool
becomes available immediately after it is added.
(3) You can bind the logical disks:
You can pick up the amount of storage required from the unused space in the dynamic pool and
bind logical disks required for it. For details on how to bind logical disks, refer to 7.2.1
“Binding Logical Disks” in Part IV, “Operations”.
(4) You can expand the logical disk capacity:
You can pick up the amount of storage required from the unused space in the dynamic pool and
increase the existing logical disk capacity. While data stored in the logical disks is secured,
some space usable for additional logical disks is added after the existing logical disks. The way
of having the host identify the additional space depends on the platform.
For details on how to expand the logical disk capacity, refer to 7.2.2 “Expanding Capacity of
Logical Disks” in Part IV “Operations”.
Some platforms do not support expansion of logical disk capacity. For details about it, ask the
maintenance personnel. In addition, in case of an error or failure, it is recommended to make a
backup of data stored in the existing logical disks before expanding the logical disk capacity.