Setting up the msa, Defining msa array objects, Figure 84 defining msa array objects with the acu – HP StorageWorks XP Remote Web Console Software User Manual
Page 156: Calculating msa lu size and defining lus, 84 defining msa array objects with the acu
156 Configuring MSA1000/1500 as external arrays
The following is a summary of the port setting status of the local array when you connect the MSA external
array.
Setting up the MSA
To set up the MSA for use as an external array connected to the XP12000/XP10000/SVS200, perform
the following steps:
1.
Define the MSA Array Object.
2.
Define the MSA LU.
3.
Use MSA Selective Storage Presentation to institute LUN security.
After defining the MSA array object, specify individual storage LUs within the array object. At this point,
institute LUN security on the MSA using the ACU Selective Storage Presentation (SSP) functionality.
Use the HP StorageWorks Array Configuration Utility (ACU) to configure the MSA for its role as an
external array. ACU runs from a server attached to the MSA via a Fibre Channel path.
The MSA Array does not require any special firmware level or hardware additive to be usable by External
Storage XP as long as the firmware level in use supports the appropriate host mode setting (for example,
Windows or Tru64).
NOTE:
Download the ACU and ACU Online User Guide from the following address:
Defining MSA array objects
Use the Array Configuration Utility (ACU) to define at least one internal MSA array object (for instance,
“A”) when first setting up the array. After defining an array object, specify LUs within that array object.
Figure 84
Defining MSA array objects with the ACU
Calculating MSA LU size and defining LUs
The ACU used for configuring the MSA uses an optimization algorithm to calculate the user size of a new
LU given a user-specified size in MB (
). Because you cannot bypass or disable the optimization
algorithm, you must compensate for this optimization so that MSA LUs are created at the correct size.
When requesting a new LU through the ACU, make the request 2 to 3 MB larger than needed for
Topology
Fabric ON
Fabric OFF
Loop
Supported
Supported
Point-to-Point
Supported
Not supported