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SAN Volume Controller: Best Practices and Performance Guidelines by

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Chapter 10.2.5. VDisk migration between I/O Groups

Page 180

180 SAN Volume Controller: Best Practices and Performance Guidelines The next time that a new VDisk is allocated and mapped to that host, the SCSI ID will be reused if it is allowed to set to the default value, and the host can possibly confuse the new device with the old device definition that is still left over in the device database or system memory. It is possible to get two devices that use the same identical device definitions in the device database, such as this example. Note that both vpath189 and vpath190 have the same HDisk definitions while they actually contain different device serial numbers. The path fscsi0/ hdisk1654 exists in both vpaths. DEV#: 189 DEVICE NAME: vpath189 ...

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