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36
Superdome PA-8600/PA-8700
Superdome PA-8600/PA-8700Superdome PA-8600/PA-8700
Superdome PA-8600/PA-8700
: Each cell should have at least two active CPUs.
Superdome PA-8800
Superdome PA-8800Superdome PA-8800
Superdome PA-8800
: Each cell should have at least four active CPUs.
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NOTE:
NOTE:NOTE:
NOTE:
Only Superdome PA 8800 supports 1-GB DIMMs.
Each cell should have at least 4 GB (8 DIMMs) of
memory using 512-MB DIMMs and at least 8 GB of memory using 1-GB DIMMs or at least 16 GB of memory using
2-GB DIMMs..
38
I/O chassis ownership must be localized as much as possible. One way is to assign I/O chassis to partitions in
sequential order starting from INSIDE the single cabinet, then out to the I/O expansion cabinet 'owned' by the
single cabinet.
39
I/O expansion cabinets can be used only when the main system cabinet holds maximum number of I/O card
cages. Thus, the cabinet must first be filled with I/O card cages before using an I/O expansion cabinet.
40
Single cabinets connected to form a dual cabinet (using flex cables) should use a single I/O expansion cabinet if
possible.
41
Spread enough connections across as many I/O chassis as it takes to become 'redundant' in I/O chassis'. In other
words, if an I/O chassis fails, the remaining chassis have enough connections to keep the system up and running,
or in the worst case, have the ability to reboot with the connections to peripherals and networking intact.
42
All SCSI cards are configured in the factory as unterminated. Any auto termination is defeated. If auto termination
is not defeatable by hardware, the card is not used at first release. Terminated cable would be used for connection
to the first external device. In the factory and for shipment, no cables are connected to the SCSI cards. In place of
the terminated cable, a terminator is placed on the cable port to provide termination until the cable is attached.
This is needed to allow HP UX to boot. The customer does not need to order the terminators for these factory
integrated SCSI cards, since the customer will probably discard them. The terminators are provided in the factory by
use of constraint net logic.
43
Partitions whose I/O chassis are contained within a single cabinet have higher availability than those partitions
that have their I/O chassis spread across cabinets.
44
A partition's core I/O chassis should go in a system cabinet, not an I/O expansion cabinet.
45
A partition should be connected to at least two I/O chassis containing Core I/O cards. This implies that all
partitions should be at least 2 cells in size. The lowest number cell or I/O chassis is the 'root' cell; the second lowest
number cell or I/O chassis combo in the partition is the 'backup root' cell.
46
A partition should consist of at least two cells.
47
Not more than one partition should span a cabinet or a crossbar link. When crossbar links are shared, the partition
is more at risk relative to a crossbar failure that may bring down all the cells connected to it.
QuickSpecs
HP 9000 Superdome Servers
HP 9000 Superdome ServersHP 9000 Superdome Servers
HP 9000 Superdome Servers
(PA-8600, PA-8700 and PA-8800)
(PA-8600, PA-8700 and PA-8800)(PA-8600, PA-8700 and PA-8800)
(PA-8600, PA-8700 and PA-8800)
System Management Features
DA - 11721 North America — Version 13 — April 1, 2005
Page 29