Справочник Пользователя для IBM Flex System V7000 Expansion Enclosure 4939H29
Модели
4939H29
Chapter 2. Introduction to IBM Flex System V7000 Storage Node
65
Draft Document for Review January 29, 2013 12:52 pm
8068ch02-HW Intro.fm
Figure 2-15 Striped and Sequential volumes
��
Image mode
Image mode volumes are special volumes that have a direct relationship with one MDisk.
They are used to migrate existing data into and out of the IBM Flex System V7000 Storage
Node.
They are used to migrate existing data into and out of the IBM Flex System V7000 Storage
Node.
When the image mode volume is created, a direct mapping is made between extents that
are on the MDisk and the extents that are on the volume. The logical block address (LBA)
are on the MDisk and the extents that are on the volume. The logical block address (LBA)
x
on the MDisk is the same as the LBA
x
on the volume, which ensures that the data on
the MDisk is preserved as it is brought into the clustered system (Figure 2-16 on page 66).