HP AD510A HP StorageWorks 1500 Modular Smart Array Installation Guide (355901- - Page 79

Configuring the storage, Go to, on and, to record information about your storage.

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Configuration Procedures - Linux Environments 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 15, plans should include decisions about total system capacity, fault-tolerance, performance, and availability. Although detailed in the ACU and the CLI user guides, basic configuration tasks include (in the following sequence): ■ Creating the arrays (LUNs). ■ Entering 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 multi-path 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 Linux environments, HBA load balancing is set via a driver command line option. 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 114 and Table 14: "Array (LUN) Information" on page 118 to record information about your storage. HP StorageWorks 1500 Modular Smart Array Installation Guide 79

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Configuration Procedures - Linux Environments
79
HP StorageWorks 1500 Modular Smart Array Installation Guide
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 15, plans should include decisions about total system
capacity, fault-tolerance, performance, and availability.
Although detailed in the ACU and the CLI user guides, basic configuration tasks
include (in the following sequence):
■
Creating the arrays (LUNs).
■
Entering 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 multi-path 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 Linux environments, HBA
load balancing is set via a driver command line option.
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 114 and
Table 14
: “
Array
(LUN) Information” on page 118
to record information about your storage.