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SAN Volume Controller: Best Practices and Performance Guidelines by

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Chapter 11.4.1. DB2 I/O characteristics and data structures

Page 209

Chapter 11. Applications 209 just need to know the alignment boundary that they use. Other operating systems, however, might require manual intervention to set their start point to a value that aligns them. With an SVC managing the storage for the host as striped VDisks, aligning the partitions is easier, because the extents of the VDisk are spread across the MDisks in the MDG. The storage administrator must ensure an adequate distribution. Understanding how your host- based volume manager ( if used) defines and makes use of the logical drives when they are presented is also an important part of the data layout. Volume managers are generally set up to place logical drives into ...

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