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Figure 1-3 Connections Between Storage CLIMs and ESS
For fault tolerance, the primary and backup paths to an ESS logical device (LDEV) must go
through different Fibre Channel switches.
Some storage area procedures, such as reconfiguration, can cause the affected switches to pause.
If the pause is long enough, I/O failure occurs on all paths connected to that switch. If both the
primary and the backup paths are connected to the same switch, the LDEV goes down.
Refer to the documentation that accompanies the ESS.
Tape Drive and Interface Hardware (Optional)
For an overview of tape drives and the interface hardware, see “Fibre Channel Ports to Fibre
Tape Devices” (page 57) or “SAS Ports to SAS Tape Devices” (page 57).
For a list of supported tape devices, ask your service provider to refer to the NonStop BladeSystem
Hardware Installation Manual.
Preparation for Other Server Hardware
This guide provides the specifications only for the NonStop BladeSystem modular cabinets and
enclosures identified earlier in this section. For site preparation specifications for other HP
hardware that will be installed with the NonStop BladeSystems, consult your HP account team.
For site preparation specifications relating to hardware from other manufacturers, refer to the
documentation for those devices.
Management Tools for NonStop BladeSystems
NOTE: For information about changing the default passwords for NonStop BladeSystem
components and associated software, see “Changing Customer Passwords” (page 71).
This subsection describes the management tools available on your NonStop BladeSystem:
• “OSM Package” (page 24)
• “Onboard Administrator (OA)” (page 24)
• “Integrated Lights Out (iLO)” (page 24)
Preparation for Other Server Hardware 23