Sun StorEdge[tm] S1 LEDs
Front Panel LEDs
The front panel LEDs indicate system power, system faults, hard
drive activity, and SCSI ID assignments. There is also a quick-reference card
attached to the system which explains what the SCSI ID LEDs mean.
With Bezel
Without Bezel
LED |
Color |
Meaning |
Action |
System Power |
Green |
The enclosure is powered on. |
No action is necessary. |
Unlit |
The enclosure is powered off. |
No action is necessary. |
System Summary Fault |
Unlit |
The enclosure is performing normally. |
No action is necessary. |
Amber |
There are two possible causes:
The power is in standby mode or
A component other than a hard drive has failed, such as the power supply
or a fan. The System Summary Fault LED does not indicate if a hard drive
has failed. The hard drive LEDs provide some diagnostic information on
the disk drives.
|
Follow these steps:
First, check to see if the power is in Standby mode. If so, turn on the
power.
If the power is on, it is a component failure. You must replace the entire
StorEdge S1 storage enclosure. Remove all disk drives before returning
the enclosure.
|
Disk Drive |
Solid green |
A hard drive is present in that slot but is not active. |
No action is necessary. |
Flashing green |
A hard drive is present in that slot and is active. |
No action is necessary. |
Unlit |
No hard drive is present in that slot, or the disk drive has failed. |
If the power is on, a hard drive is present in that slot, and the hard
drive LED is unlit, then you must replace the hard drive. |
Binary SCSI LEDs |
Solid green (in various combinations) |
The position of the binary display indicates the base number (first number)
of the three drive sequence. See the pull-out card or the Binary
SCSI ID LEDs section.
|
No action is necessary. |
Note: If a disk drive is under an unusually heavy load (for example,
if the drive is being reformatted), the Disk Drive LED might be unlit for a
long period of time, even though the drive has not failed. You should see a
message in your console window telling you that the disk drive is offline if
the disk drive has truly failed.
Binary SCSI ID LEDs
The disk drive SCSI ID numbers are assigned in sequences of three
numbers in a row. The first number in the sequence is the base address. The
base address is the number used to set the SCSI toggle switch on the back of
the storage enclosure and is represented in binary format on the top row of
disk drive LEDs on the front of the storage enclosure.
Note: The shaded rows of the table represent SCSI ID sequences
that cannot be used because SCSI ID 7 is assigned to the SCSI controller. Some
servers reserve SCSI ID 6 for use by CD drives and IDs 0 and 1 for internal
drives.
Rear Panel LEDs
System Power and System Summary Fault LEDs
The System Power and System Summary Fault LEDs give the same
diagnostic information as the System Power and
System Summary Fault LEDs at the front of the enclosure.
Auto-termination Indication LEDs
The Auto-termination Indication LEDs indicate if the StorEdge
S1 storage enclosure is part of an UltraSCSI, wide SCSI, or narrow SCSI daisy-chain.
They also indicate the enclosure's position in the daisy-chain.
Auto-termination Indication LEDs and Their Meanings
|
High |
Low |
Meaning |
Off |
Off |
The StorEdge S1 enclosure is the first device in the UltraSCSI or wide
SCSI daisy-chain; another device follows the StorEdge S1 enclosure. |
On |
On |
The StorEdge S1 storage enclosure is the last or only device in the
UltraSCSI or wide SCSI daisy-chain. |
On |
Off |
A narrow SCSI device follows the StorEdge S1 storage enclosure in the
daisy-chain. |
Off |
On |
N/A |
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