HP Virtual Connect 8Gb 20-port Fibre Channel Module for c-Class BladeSystem - Manual (Page 61)

HP BladeSystem c-Class enclosures 61
Wizard. There are 16 half-height or 8 full-height server bays in a c7000 enclosure. A combination of
full-height and half-height servers can be used in the same enclosure. Multiple enclosure domains are not
supported on c3000 enclosures.
The VC-Enet or FlexFabric modules use stacking cables between c7000 enclosures so that network traffic can
be routed from any server Ethernet port to any uplink within the VC domain. Since FC does not support
stacking, the VC-FC or FlexFabric module FC uplinks on the same bay of all enclosures must be connected to
the same FC switch to enable profile mobility.
The management interfaces for all enclosure Onboard Administrators and VC modules within the same VC
domain must be on the same lightly loaded subnet and highly reliable network. Overloads or loss of
connectivity can disable configuration attempts until the connectivity is re-established and synchronized with
the domain. The Onboard Administrator IP addresses used must be configured to be static. The Onboard
Administrator user credentials for all enclosures must be consistent to enable VCSU firmware updates for VC
modules in the remote enclosures. All FC-capable and FCoE-capable modules in the same horizontally
adjacent bay pair (bays 1-2, 3-4, and so on) must be of the same type and position in all enclosures.
Multi-enclosure double-dense domains require similar and compatible VC-FC modules in bays 5, 6, 7, and
8 in all enclosures if FC connectivity is required. If a multi-enclosure double-dense configuration contains
incompatible VC-FC modules in bays 5, 6, 7, or 8 in the local or remote enclosures, some or all of the
compatible VC-FC modules in the remote enclosures might be designated INCOMPATIBLE after import.
For multi-enclosure domains using Direct Attach Storage, a server profile migration of a SAN-booted server
between enclosures is not supported.
Multiple enclosure requirements
Observe the following requirements when connecting multiple enclosures:
• Each enclosure must have at least one supported VC-Enet module installed.
• All VC-Enet modules must be interconnected (redundantly stacked).
• All enclosures must have the same FC and FlexFabric module configuration. For example, if bays 1 and
2 of the Primary Enclosure contain FlexFabric-20/40 F8 modules, then bays 1 and 2 of Remote
Enclosures 1, 2, and 3 must also contain FlexFabric-20/40 F8 modules.
• All enclosures must have the same HP VC Flex-10/10D module configuration. For example, if bays 1
and 2 of the Primary Enclosure contain HP VC Flex-10/10D modules, then bays 1 and 2 of Remote
Enclosures 1, 2, and 3 must also contain HP VC Flex-10/10D modules.
• A single domain supports up to four c7000 enclosures.
• When using multiple c7000 enclosures, the number of modules supported across the enclosures within
a domain is limited. A total of 16 Ethernet and 16 VC-FC type modules can be installed in a
multi-enclosure domain. Each FlexFabric module counts as one Ethernet and one VC-FC module.
Combinations of FlexFabric, VC-Enet and VC-FC modules are allowed as long as the 16-module limit for
each module type (Ethernet and FC) is not exceeded in the domain. Additional constraints apply for the
FlexFabric-20/40 F8 module. When two or more FlexFabric-20/40 F8 modules are installed, the
ambient temperature must be no higher than 30°C (86°F). A maximum of six FlexFabric-20/40 F8
modules can be installed in a c7000 enclosure. HP recommends a c7000 enclosure with a 10-fan
configuration when HP Virtual Connect FlexFabric-20/40 F8 Modules are installed.
• All Onboard Administrators and VC modules must be on the same lightly loaded and highly reliable
management Ethernet network and IP subnet.