May 2011
Intermediate to advanced
626 pages
15h 3m
English
book
Implementing the IBM Storwize V7000
by Brian Cartwright, Ronda Hruby, Daniel Koeck, Xin Liu, Massimo Rosati, Thomas Vogel, Bill Wiegand, Jon Tate
Content preview from Implementing the IBM Storwize V7000
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Chapter 1. Overview of the IBM Storwize V7000 system 23
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)
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 1-15).
Figure 1-15 Image mode volume
Some virtualization functions are not available for image mode volumes, so it is often useful
to migrate the volume into a new storage pool. After it is migrated, the MDisk becomes a
managed MDisk.
If you add an MDisk containing ...
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