Drive Chassis - HP XP P9500 Owner's Manual

Figure 13 P9500 system control panel
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Drive chassis

The drive chassis includes two back-to-back disk drive assemblies. Each assembly includes HDDs,
SSW boards, HDD PWR boards, eight cooling fans, and two AC-DC power supplies. All components
are configured in redundant pairs to prevent system failure. All the components can be added or
replaced while the disk array is in operation.
The following illustration shows the rear view of the drive chassis. The table following the illustration
describes the drive chassis components.
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Description
MESSAGE - Amber LED
ON: indicates that a SIM (Message) was
generated from either of the clusters. Applied
to both storage clusters.
Blinking: Indicates that a SVP failure has
occurred.
READY - Green LED Indicates that input/output
operation on the channel interface is enabled.
BS ON - Amber LED
Indicates that the Sub Power supply is on. (CL
1 or CL 2)
REMOTE MAINTENANCE ENABLE/DISABLE -
switch
When ON, permits remote maintenance.
PS ON/PS OFF - switch
Turns the system power on or off.
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Item Description
2 ALARM - Red LED
Indicates DC under voltage of any DKC part, DC
over current, abnormally high temperature, or that
an unrecoverable failure occurred.
4 PS ON - Green LED
Indicates that the system is powered on, that the
POST is complete, and that the system has booted
up and is ready for use.
6 REMOTE MAINTENANCE PROCESSING - Amber
LED
Indicates that the system is being remotely
maintained.
8 PS SW ENABLE - switch
Used to enable the PS ON/PS OFF switch.
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Drive chassis 57