Important Tips - HP 2000sa Deployment Manual

BladeSystem Technical Resources website:
Be sure to read the following documents, shipped with the switch and BladeSystem enclosure:
HP StorageWorks 3Gb SAS BL Switch Installation Instructions—Includes physical installation
instructions.
HP BladeSystem c-Class Solution Overview Setup Poster—Provides an overview of the complete
installation process of an HP BladeSystem c-Class solution.
For more detailed information about the switch, see the following documents, available on HP
websites:
HP StorageWorks 3Gb SAS BL Switch User Guide—Includes detailed hardware descriptions
and user information
HP 3G Virtual SAS Manager User Guide—Provides detailed information about and instructions
on how to configure zone groups on the 3Gb SAS BL Switch to control access to external SAS
storage enclosures.

Important tips

When installing switches in BladeSystem c-CLass enclosure interconnect bays, make sure that
the interconnect bays map to the mezzanine slots of the desired server blade.
Both switches in an interconnect bay row of the BladeSystem c-Class enclosure must be the
same model. For example, both switches must be 3Gb SAS BL Switches. Mixing SAS BL
Switches and Fibre Channel or Ethernet switches in the same interconnect bay row is not
supported.
If needed, upgrade to the latest firmware version before use.
If HP ProLiant BL620c G7 and HP ProLiant BL680c G7 Server Blades are included in the
solutions, HP 3Gb SAS BL Switch firmware version 2.2.15.0 or later must be installed on the
switch.
When connecting devices to the HP 3Gb SAS BL Switch, be sure to follow HP recommended
best practices and note the following:
◦ Performance may be impacted if cabling and zoning recommendations are not
implemented. For more information, see
Maximum length and type of SAS cable is dependant on the type of external tape device
◦
or storage enclosure. For more information, see the QuickSpecs for the device or enclosure.
For best performance, connect two cables from the switch to each storage enclosure I/O
◦
module or controller. This additional cable offers additional performance: one cable
provides a x4 connection; two cables provide a x8 (wide-port) connection.
◦ When using 8x wide SAS cabling, both cables must be attached to the same quad of
switch ports; either 1-4 or 5-8.
For more information about single domain, dual domain, and wide-port cabling, see
"Deployment examples" (page
When the c7000 enclosure is populated with double-density server blades, four switches can
be installed in BladeSystem c-Class interconnect bays 5, 6, 7, and 8.
◦ Switches in interconnect bays 5 and 6 map to the "a" server nodes in device bays 1–16.
(Referred to as servers 1A–16A.)
Switches in interconnect bays 7 and 8 map to the "b" server nodes in device bays 1–16.
◦
(Referred to as servers 1B–16B.)
http://www.hp.com/go/bladesystem/documentation
"Zoning information" (page
89).
38).
HP StorageWorks 3Gb SAS BL Switch 23