Specifications

1–17
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
External Cache Battery
To preserve the write-back cache data in the event of a primary power failure, a cache
module must be connected to an external cache battery (ECB) or a UPS.
Compaq supplies two versions of ECBs: a single-battery ECB for single controller
configurations, and a dual-battery ECB for dual-redundant controller configurations,
which is shown in Figure 1–6.
Figure 1–6. Dual-battery ECB SBB
Table 1–7. Key to Figure 1–6 Dual-Battery ECB SBB
Item Description
➀
Shut off button
➁
Status LED
➂
ECB Y cable for the BA370 Enclosure
ECB Y cable for the Data Center Cabinet
➃
Micro-D port for second battery
CXO5713A
C
A
C
H
E
P
O
W
E
R
S
T
ATU
S
S
H
U
T
O
F
F
C
A
C
H
E
P
O
W
E
R
S
TAT
U
S
S
H
U
T
O
F
F
3
~
4
2
1