HP StorageWorks 1500 Modular Smart Array installation guide (355901 - 005, June 2007)

HP StorageWorks 1500 Modular Smart Array installation guide 89
• Ensure that the drivers for the SCSI and network adapters are appropriate for the desired
OS:
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 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 indeed 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 configurations, manually assign a preferred path (controller ownership) for each
LUN. By default, MSA firmware initially assigns ownership of all LUNs to the controller in slot
one (front-right) of the MSA. Then, based on access patterns and I/O load, the firmware
automatically re-assigns ownership of the LUN between the controllers to balance the load. If
your environment controls load balancing from the host, you must manually assign the preferred
path for each LUN.
Perform these tasks using your chosen configuration utility. Refer to the appropriate user
documentation for procedural instructions.
OS SCSI adapter
RHEL3 LSI Logic
RHEL4 BusLogic
SLES8 LSI Logic
SLES9 BusLogic
Windows 2000 BusLogic
Windows 2003 LSI Logic