NonStop S-Series Planning and Configuration Guide (G06.29+)

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
4-44
Configurations of Memory Units
PMF CRU Compatibility in an Enclosure During Online Replacement or
Upgrade
All models of PMF CRUs can be replaced online. Some models of PMF CRUs cannot
be upgraded online. This table shows which PMF CRUs can be upgraded from one
model to another online.
.
Alarms When Upgrading from S7400/S72000 to S76000/S86000 or
S78000/S88000 Servers
When the first 1954 or 1960 PMF CRU in an enclosure is replaced with a 1971, 1972,
1973, or 1974 PMF CRU, a ServerNet Path Down alarm is generated by OSM or TSM.
This expected condition is created by router and protocol differences. When the
second PMF CRU is operational, the system returns to normal, and the alarms
disappear.
To
From
1950
7000
1960
7400
1961
7600
1962
7800
1975
7800B
1951
70000
1954
72000
1970
74000
1971
76000
1973
78000
1972
86000
1974
88000
1950
(S7000)
X
1960
(S7400)
X
O
O O O O O O
1961
(S7600)
X O O O O O O O
1962
(S7800)
X OP O O O O O
1975
(S7800B)
X O O O O O
1951
(S70000)
X O O
1954
(S72000)
X O O O O O
1970
(S74000)
X O O O O
1971
(S76000)
X O O O
1973
(S78000)
X O O
1972
(S86000)
X O
1974
(S88000)
X
X. Online replacement and upgrade, same processor
O. Temporary coexistence during upgrade only (unless P is also present)
P. Permanent coexistence allowed