HP StorageWorks P2000 User Manual

Issue: When using explicit LUN mapping, using long IQN names for the iSCSI Initiator can cause the array
to map the LUN incorrectly. A predefined area is used to store explicit LUN mapping information per LUN
and, with longer IQN names, this area can be exhausted. This issue is not dependent on the number of paths
to the LUN.
Workaround: Shorten the IQN name on the nodes.
The following formula is used to calculate the maximum IQN name length based on the number of hosts being
explicitly mapped to a LUN on the array:
Maximum IQN Character Length = (4083 / n) – 7 (Where n = number of hosts nodes explicitly
mapped to a LUN on the array.)
NOTE: By specification, 223 is the maximum IQN length allowed.
The following table provides the calculated values based on the number of hosts being explicitly mapped to
a LUN on the array:
Number of hosts explicitly
mapped to a LUN and the
Maximum IQN character
length
Number of hosts explicitly
mapped to a LUN and the
Maximum IQN character
length
Number of hosts explicitly
mapped to a LUN and the
Maximum IQN character
length
7649116332231–17
74501133421918
73511093520719
71521063619720
70531033718721
68541003817822
6755973917023
6556954016324
6457924115625
6358904215026
6259874314427
6160854413828
5961834513329
5862814612930
5763794712431
5664784812032
HP StorageWorks P2000 G3 iSCSI MSA System Controller Firmware Release Notes 7

HP StorageWorks P2000 Specifications

General

Brand	HP
Model	StorageWorks P2000
Category	Controller
Language	English