IBM Flex System V7000 Expansion Enclosure 4939H29 ユーザーズマニュアル
製品コード
4939H29
Chapter 6. Basic Volume and Host Configuration
245
Draft Document for Review January 29, 2013 12:52 pm
8068ch06-Volumes.fm
Figure 6-5 Volume created
4. After the task is completed, click Close
You can choose to map the new volumes immediately as part of the volume create wizard by
clicking Create and Map to Host. This will guide you through the Map to Host wizard
described in section 6.3, “Mapping a volume to the host” on page 261.
clicking Create and Map to Host. This will guide you through the Map to Host wizard
described in section 6.3, “Mapping a volume to the host” on page 261.
6.1.2 Creating a thin-provisioned volume
Volumes can be configured to be thin provisioned. A thin-provisioned volume behaves with
respect to application reads and writes as though they were fully allocated. When creating a
thin-provisioned volume, it is possible to specify two capacities: the real physical capacity
allocated to the volume from the storage pool and its virtual capacity available to the host. So
the real capacity determines the quantity of extents that are initially allocated to the volume.
The virtual capacity is the capacity of the volume reported to all other components (for
example, FlashCopy, cache, and Remote Copy) and to the host servers.
respect to application reads and writes as though they were fully allocated. When creating a
thin-provisioned volume, it is possible to specify two capacities: the real physical capacity
allocated to the volume from the storage pool and its virtual capacity available to the host. So
the real capacity determines the quantity of extents that are initially allocated to the volume.
The virtual capacity is the capacity of the volume reported to all other components (for
example, FlashCopy, cache, and Remote Copy) and to the host servers.