nStor 4100FS, User Manual

Page: 19 / 168

Chapter 1 - Getting Started
SAF-TE Disk I/O Card
7
SAF-TE Disk I/O Card
WARNING: The SAF-TE Disk I/O card is NOT HOT SWAPPABLE. You must
POWER DOWN the enclosure prior to removing or installing this card.
The SAF-TE Disk I/O card provides the built-in environmental and system status
monitoring, as well as, host connectivity to the disk drives, It also houses the
switches for setting SCSI IDs, VT-100 communication protocols, and drive spin up
options.
This card has two SAF-TE processors (SEPs) that continuously monitors the
enclosure for temperature status, fan status, power supply status, and SCSI
channel status. The SEPs are responsible for reporting environmentals and system
status to the front bezel LEDs/audible alarms and external monitoring software.
The monitoring system is fully compliant with SAF-TE specification protocol
version 1.0.
SAF-TE Disk I/O Card
At power up, the SAF-TE processors read the SCSI switch settings and configures
the system for the appropriate addresses. It then executes instructions from
firmware performing a self-test diagnostics. The firmware is flash upgradeable
using the SAF-TE RS-232 Service port located below the I/O card slots at the rear
of the enclosure. The firmware also contains the necessary functions for
enclosure management via a VT-100 interface.
NOTE: Specific switch settings are discussed later in the Installation chapter.
JP7
ADD JUMPER
TO DISABLE
TERMINA
TION
JP8
CNF
G 1
CNF
G 2
RAID SPA
RE 1 SPA
RE 2
BAU
D S
EL
DLY
STR
T
RMT
STR
T
ADD JUMPER
TO DISABLE
TERMINA
TION
CHANNEL -1
CHANNEL -2
R
D A
0
1 2 3 4 5 6 7 8
A
1
S
0
S
1
B
D D
L
R
M
UP (Off -1)
Channel 2
Termination Jumper
Channel 1
Termination Jumper
Channel 1
Channel 2
DOWN (On -0)
C
onfi
gur
atio
n
1
C
onfi
gur
atio
n
2
RAI
D
Spar
e
1
Spa
re
2
BA
UD
R
at
e
Select
D
ela
y
D
riv
e
Star
t
R
emo
te
Dr
ive
St
art
4100FS.book Page 7 Tuesday, July 8, 2003 4:35 PM