Chapter 5.9. LUN masking
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Chapter 5. Storage controller 75 5.9 LUN masking All SVC nodes must see the same set of LUNs from all target ports that have logged into the SVC nodes. If target ports are visible to the nodes that do not have the same set of LUNs assigned, SVC treats this situation as an error condition and generates error code 1625. Validating the LUN masking from the storage controller and then confirming the correct path count from within the SVC is critical. Example 5- 6 shows four LUNs being presented from a DS8000 storage controller to a 4- node SVC cluster. The DS8000 performs LUN masking based on volume group. Example 5- 6 shows showvolgrp output for volume group V0, which contains four LUNs. Example 5- 6 showvolgrp output ...
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