Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

3. Creating an HDLM Environment
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#1
The maximum number of LUs that can be recognized by a CHA port is 256.
#2
If the reservation policy is
PR_exclusive, and the Thunder 9500V series, or
Hitachi AMS2000/AMS/WMS/SMS series is used, the number of supported
paths to an LU is 1 to 32.
For details on reservation policy, see 3.9 About the Reservation Policy.