Configuring The Storage - HP 353803-B22 - StorageWorks Modular Smart Array 1000 SAN Starter Installation Manual

Configuring the storage

Thorough planning is critical to the successful and efficient deployment of any storage array system.
As discussed in Chapter 1:
include decisions about total system capacity, fault-tolerance levels (availability), and performance.
Although detailed in the ACU and the CLI user guides, basic configuration tasks include (in the
following sequence):
• Creating the arrays (LUNs).
• Entering global controller settings, such as setting the read/write cache ratio, setting the
rebuild/expand priority, and setting the redundancy level.
• Identifying the operating system type (also called Host Mode, Access Mode, Profile, or
Connection Profile) of each HBA with access to the MSA. This ensures that the MSA will
communicate properly with that host.
• Verifying that each HBA with access to the MSA is visible to the MSA.
• Entering Selective Storage Presentation options (also called Access Control Lists) to isolate the
storage from unauthorized access. These settings indicate, by HBA, which LUNs the HBA can
access.
IMPORTANT:
• Verify that both HBAs in each server have been granted access to the storage.
• In active/active multipath configurations, HP recommends disabling host-based Fibre Channel
HBA load balancing. By default, MSA firmware balances the LUNs between the two MSA
controllers. (Or optionally, you can manually specify the preferred controller path for each LUN.)
If HBA load balancing is also enabled at the host, the host instructions will override the MSA
instructions, resulting in additional processing time and reduced performance. In Windows
environments, HBA load balancing is set in the HP MPIO DSM Manager.
Perform these tasks using your chosen configuration utility. Refer to the appropriate user
documentation for instructions.
Go to Table 13:
page 1 16 to record information about your storage.
"Installation procedures—All
In multipath configurations:
"Hard drive information" on page 1 12 and
HP StorageWorks 1000 Modular Smart Array installation guide
deployments" on page 13, plans should
Table 14: "Array (LUN) information" on
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