B Configuring Msa1000/1500 As External Disk Arrays; Configuring External Disk Array Lus, Host Mode, And Ports; Connecting Msa1000/1500 - HP StorageWorks User Manual

B Configuring MSA1000/1500 as external disk arrays
NOTE: Externally connected MSAs must not contain Continuous Access XP P-VOLs or S-VOLs.

Configuring external disk array LUs, host mode, and ports

This appendix describes how to configure the MSA external disk array. For other disk arrays, see the
documentation for that external disk array.
You do not need to configure the SAN topology parameters on the MSA disk array. The MSA
automatically detects whether it is connected to the local disk array via a switch or point-to-point
connection, and adjusts its parameters accordingly.
If no LUNs are available on the MSA, you must create them.
1. Set the channel transfer speed according to the configuration.
Generally, select Auto Negotiation.
2. Use Selective Storage Presentation to configure the MSA LUs involved with External Storage XP.

Connecting MSA1000/1500

If you connect an HP StorageWorks Modular Smart Array (MSA) with two controllers as an external disk
array (highly recommended), set the port's host mode to Tru64 and use Selective Storage Presentation.
NOTE: If only a single MSA controller will be known to the XP12000/XP10000, using Selective Storage
Presentation in the MSA ACU is optional and the host mode may be set to Windows. For the purposes of
this document, it will be assumed that two MSA controllers are in use, which greatly improves it's degree of
High Availability and allows for the storage of primary copies of important data to reside on the MSA.
See the following documents for information about configuring MSA:
• HP StorageWorks Modular SAN Array QuickSpecs
• HP StorageWorks Modular SAN Array User Guide
NOTE: References to MSA generally refer to both the MSA1000 and the MSA1500 (both with an
active/passive controller). Although the standby MSA controller may connect to the same
XP12000/XP10000 port as the active MSA controller (shown in
connect to an XP port on a different XP cluster.
Figure 64 Example: Connecting an MSA disk array
Figure 64), HP recommends that it
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