3
Mainframe-class RAS features
Reliability / Availability
•
Dual-Core Intel
®
Itanium
®
processor:
Error handling of hardware and operating system through Machine Check Architecture (MCA)
•
Memory mirroring:
Continuous operation even in the event of a non-correctable error
•
Partial Chipset degradation:
Avoid multi-partition shutdowns resulting from chipset failures
•
Highly Available Center Plane:
System restoration after the replacement of a failed crossbar
no longer requires a system shutdown
•
Complete modularization and redundancy:
Improvements in fault resilience,
continuous operation and serviceability
•
Clock modularization, redundancy and 16 processor domain segmentation:
Minimizes downtime, and avoids multi partition shutdown due to clock failure
•
Diagnostics of the error detection circuits:
Substantial strengthening of data integrity
•
Enhanced error detection of the high-speed interconnect:
Intricate error handling through multi bit error detection and retransmission of error data
•
Two independent power sources:
Avoid system shutdown due to failures of the power distribution units
Serviceability
•
Autonomic reporting of logs with pinpoint prognosis of failed components allow for the realization of
mainframe-class platform serviceability
n
System Hardware Layout of the Express5800/1000
Series Server (1320Xf)
* Redundant
configuration
available
Fan box
Cell card
PCI box
Power Bay
Service
Processor *
1
Clock card *
1
HDD Bay
Power
Distribution
Unit (PDU)
Fan box
Crossbar
card
PCI slots
Hot Pluggable *
2
Fully
Redundant
N+1
Redundant
*1 Redundancy is optional
*2 Ability to replace a failed component
without shutting down other partitions
* Redundant
configuration
available
Increased inter-Cell data transfer speeds
Cell
Ce
ll
C
el
l
Ce
ll
Ce
ll
C
ell
Ce
ll
H
ig
h
-s
p
ee
d
c
ro
ss
b
ar
Memory
Memory
A
3
Chipset
Processor
Processor
Processor
Processor
Cell Controller
C
ac
he
C
o
he
re
nc
y
In
te
rf
ac
e
(C
C
I)
D
ir
ec
t
d
at
a
tr
an
sf
er
o
f l
ar
g
e
ca
ch
e
d
at
a
n
Internal Connections of the
Express5800/1000 Series
Service Processor
Clock card
HDD Bay
Power Distribution Unit
Power Bay
Fan box
Cell card
PCI box
Crossbar card
PCI slots
