HP 353803-B22 HP StorageWorks 1000 Modular Smart Array installation guide (254 - Page 63

Configuring the storage

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Page 63 highlights

Configuring the storage Thorough planning is critical to the successful and efficient deployment of any storage array system. As discussed in Chapter 1: "Installation procedures-All deployments" on page 13, plans should 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: In multipath configurations: • 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: "Hard drive information" on page 112 and Table 14: "Array (LUN) information" on page 116 to record information about your storage. HP StorageWorks 1000 Modular Smart Array installation guide 63

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HP StorageWorks 1000 Modular Smart Array installation guide
63
Configuring the storage
Thorough planning is critical to the successful and efficient deployment of any storage array system.
As discussed in Chapter 1:
”
Installation procedures—All deployments
” on page 13, plans should
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:
In multipath configurations:
•
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
: ”
Hard drive information
” on page112 and
Table 14
: ”
Array (LUN) information
” on
page116 to record information about your storage.