by Dave Snow
Commercial Systems Division
With MPE/iX Release 6.0 Express 1, a Large Memory Subsystem
is supported on HP 3000 997 Servers (HP 3000 996/995/992/991/990).
Servers must first be upgraded to HP 3000 997 Servers to use the
Large Memory Subsystem.
The new Large Memory Subsystem consists of a memory carrier
card (A3839A, containing no memory) and 1 GB memory modules (A3832A).
With MPE/iX Release 6.0 Express 1, four memory modules containing
a total of 4 GB (only 3.75 GB is usable at this time) can be loaded
on to the memory carrier card.
With MPE/iX Release 6.5 expected to ship in the first quarter
of 2000, eight memory modules will be supported per memory carrier
card and at least two memory carrier cards will be supported per
system providing support for at least 16 GB of memory in HP 3000 997
Servers.
All memory array cards supported on the HP 3000 997 Server
(128 MB, 256 MB, 512 MB and 768 MB) may be intermixed with the Large
Memory Subsystem. However, when HP 3000 997 Servers are integrated
in the factory, only the 256 MB array card will be factory integrated
with the Large Memory Subsystem. When ordered with the Large Memory Subsystem,
other memory array cards will be field integrated.
HP 3000 997 Servers using the HP 3000 Large Memory Subsystem
require the 997 Server to have processor dependent code (PDC) version
6.05 (J605) or later.
There are several advantages to using the Large Memory Subsystem
over previous memory array cards.
The
Large Memory Subsystem can increase HP 3000 997 Server performance
by as much as 6% when using eight processors and a large amount
of memory.
The Large Memory Subsystem is cheaper on a per megabyte
basis than any other HP 3000 997 memory array card.
With MPE/iX Release 6.5 shipping in the first quarter
of 2000, the Large Memory subsystem will allow support of at least
16 GB of memory in HP 3000 997 Servers.
The Large Memory Subsystem uses one PMB slot thus
freeing up PMB slots. These slots can be used for adding more HP
3000 997 processors (maximum of 8 with this release but increasing
to twelve in the first quarter of 2000) or for adding more HSC I/O bus
converters (maximum of 6 with this release).
