Monitoring the LRC, ESH, or ESH2 modules
About monitoring the modules
The LRC has three LEDs, and the ESH and ESH2 have four LEDs. The LEDs common to all modules indicate whether the it is functioning normally or there are any problems with the hardware. The fourth LED on the ESH/ESH2 module indicates 2-Gb operation when lit. You can also identify any hardware failure associated with the module from the error messages displayed on your storage appliance console.
This section also describes the different types of messages that appear on the storage appliance console in response to a command monitoring the ESH/ESH2.
Location of the module LEDs
The modules are in the middle of the back of the disk shelf.
The following illustration shows the location of the LEDs for an LRC with copper interfaces.
Note
The Fault LED is amber. The other two LEDs are green. See LED status on the LRC/ESH/ESH2 for an illustrated explanation of the LED functions.
The following illustration shows the location of the LEDs for an LRC with an optical input interface and copper output interface.
The following illustration shows the location of the LEDs for an ESH.
The following illustration shows the location of the LEDs for an ESH2.
Note
Because module A on the DS14 is inverted, the location of the module A LEDs is the inverse of what is shown in the preceding illustrations.
LED status on the LRC/ESH/ESH2
The following illustration is of the second sheet of the quick reference cards that come with your disk shelf.
Note
The rest of the second sheet of the quick reference card identifies the LED status conditions for the power supply and the integrated fan module.
LRC/ESH/ESH2 console error messages
The following error messages appear on your storage appliance console if an SES element on the LRC/ESH/ESH2 fails. For information about replacing the LRC/ESH/ESH2, see Replacing an LRC/ESH/ESH2 module.
Error message
|
Action required
|
|---|
Temperature sensor
Element 2: failed
|
The temperature sensor on LRC module A on the top back of the disk shelf failed. Contact Network Appliance customer service to replace the LRC.
|
Temperature sensor
Element 3: failed
|
The temperature sensor on LRC module B on the bottom back of the disk shelf failed. Contact Network Appliance customer service to replace the LRC.
|
SES electronics
Element 1: component
is from a different
product family
|
Module A was replaced and the shelf has the following unsupported configurations:
- ESH and LRC
- ESH2 and LRC
- ESH and ESH2
This error message occurs during the process of hot-upgrading.
|
SES electronics
Element 2: component
is from a different
product family
|
Module B was replaced and the shelf has the following unsupported configurations:
- ESH and LRC
- ESH2 and LRC
- ESH and ESH2
This error message occurs during the process of hot-upgrading.
|
SES electronics
Element 1: failed
|
LRC/ESH/ESH2 module A on the top back of the disk shelf failed. Contact Network Appliance customer service to replace the LRC.
|
SES electronics
Element 2: failed
|
LRC/ESH/ESH2 module B on the bottom back of the disk shelf failed. Contact Network Appliance customer service to replace the LRC.
|
Temperature sensor
Element 2: not
installed or failed
|
Communication was possible with the temperature sensor on ESH/ESH2 module A at one point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2.
|
Temperature sensor
Element 3: not
installed or failed
|
Communication was possible with the temperature sensor on ESH/ESH2 module B at one point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2.
|
SES electronics
Element 1: not
installed or failed
|
Communication was possible with ESH/ESH2 module A at one point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2.
|
Vendor-specific
Element 1: not
installed or failed
|
SES electronics
Element 2: not
installed or failed
|
Communication was possible with ESH/ESH2 module B at one point, but it is not possible now. Even if traffic is flowing through the Fibre Channel loop, contact Network Appliance customer service to replace the ESH/ESH2.
|
Vendor-specific
Element 2: not
installed or failed
|
Monitoring the ESH/ESH2
Command to use
The storage show hub command enables you to monitor the ESH/ESH2.
Sample output
The following is an example of the output from the storage show hub command. The exact messages that appear on your system console depend on your system configuration.
Note
For the ESH2, the following output shows the Term switch status as N/A or not applicable because the ESH2 does not have a terminate switch.
Hub name: 9.shelf2
Channel: 9
Loop: B
Shelf id: 2
Shelf UID: 50:05:0c:c0:02:00:24:02
Term switch: ON
Shelf state: ONLINE
ESH state: OK
|
Disk
ID
|
Disk
Bay
|
Port
State
|
Loop
up
Count
|
Invalid
CRC
Count
|
Invalid
Word
Count
|
Clock
Delta
|
Insert
Count
|
Stall
Count
|
Util %
|
[IN]
[OUT]
[32]
[33]
[34]
[35]
[36]
[37]
[38]
[39]
[40]
[41]
[42]
[43]
[44]
[45]
|
0
1
2
3
4
5
6
7
8
9
10
11
12
13
|
OK
TERM
OK
OK
OK
OK
OK
OK
OK
OK
BYP/TBI
OK
OK
EMPTY
OK
OK
|
8
8
10
8
10
10
10
10
10
10
10
8
8
8
8
10
|
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
|
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
|
0
-8
0
-8
-8
0
0
-16
0
16
0
-8
0
0
8
16
|
20
6
6
9
6
8
9
7
6
16
8
6
6
15
4
8
|
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
|
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
|
Description of hub status information
You might receive some of the following status reports in response to the storage show hub command.
Shelf state
The following table lists and describes the shelf status responses.
Shelf state
|
Description
|
|---|
|
ONLINE
|
Shelf is fully configured and operational.
|
|
INIT REQD
|
Shelf needs to configure one or both ESH/ESH2 modules.
|
|
OFFLINE
|
Contact was lost with shelf (SES drive access is down).
|
|
MISSING
|
Shelf was removed from the system entirely (all paths).
|
|
FAILED
|
Failure occurred on the shelf.
|
ESH/ESH2 state
The following table lists and describes the ESH/ESH2 status responses.
Shelf state
|
Description
|
|---|
|
OK
|
ESH/ESH2 is fully operational.
|
|
MISSING
|
ESH/ESH2 is missing from the specified slot.
|
|
XPORT ERROR
|
Communication with the ESH/ESH2 is not possible.
|
Terminate (Term) switch state
The following table lists and describes the terminate switch status.
Note
The information in the following table is not applicable to the ESH2 because it does not have a terminate switch.
Shelf state
|
Description
|
|---|
|
OK
|
Terminate switch is in the Off position. This DS14/DS14mk2 FC is connected to another DS14/DS14mk2 FC in the loop.
|
|
TERM
|
Terminate switch is in the On position. This DS14/DS14mk2 FC is the last shelf in the loop.
|
|
TERM-ERR
|
Forced terminate event. The terminate switch is in the On position even though this DS14/DS14mk2 FC is connected to another DS14/DS14mk2 FC in the loop. The ESH output port LED flashes to indicate this configuration error.
|
|
AUTO-TERM
|
Terminate switch is in the Off position. The output port is no longer connected to another DS14/DS14mk2 FC in the loop, but it once was. The ESH output port LED flashes to indicate this configuration error.
|
ESH/ESH2 port state
The following table lists and describes the ESH/ESH2 status responses.
Shelf state
|
Description
|
|---|
|
OK
|
Port is functioning normally.
|
|
EMPTY
|
No drive is present in bay.
|
|
BYP/TBI
|
Port failed loop test before insert and was not allowed into loop.
|
|
BYP/XMIT
|
Port bypassed due to transmitter default.
|
|
BYP/LIPF8
|
Port bypassed due to drive generating LIP F8s.
|
|
BYP/DTO
|
Port bypassed due to data timeout errors.
|
|
BYP/RLOS
|
Port bypassed due to receiver loss of signal.
|
|
BYP/CLOS
|
Port bypassed due to comma loss of signal.
|
|
BYP/RPRT
|
Port bypassed due to redundant port connection.
|
|
BYP/STALL
|
Port bypassed due to excessive stall errors.
|
|
BYP/WRD
|
Port bypassed due to excessive word errors.
|
|
BYP/CRC
|
Port bypassed due to excessive CRC errors.
|
|
BYP/CLK
|
Port bypassed due to excessive clock delta.
|
|
BYP/MIR
|
Port bypassed due to cluster mirror bit being set (check partner).
|
|
BYP/LIPF7
|
Port bypassed due to drive transmitting LIP F7s.
|
|
BYP/GEN
|
Port bypassed due to a "generic" error.
|
|
BYP/MAN
|
Port was manually bypassed (Manufacturing test only).
|
|
BYP/LIP
|
Port bypassed due to drive generating excessive LIP requests.
|
|
BYP/OSC
|
Port bypassed due to excessive port state changes.
|
|
BYP/INIT
|
Port bypassed as part of ESH Power-On Self-Test.
|
|
///:0xXX
|
ESH Admin unable to decode port state XX.
|
Hub statistic
The following table lists and describes the hub statistic responses.
Hub statistic
|
Description
|
Common values
|
Failure?
|
|---|
|
Loop up Count
|
Number of times this port saw the loop come up or transition to up.
|
Depends on the number of insertions and removals of disks and LIPs that occur in the loop.
|
No
|
|
Invalid CRC Count
|
Number of times this port saw a CRC error.
|
Is zero under normal operation. Removal and addition of disks, and a reset of the adapter, might generate some CRC errors. CRC errors on a port pinpoint the failure location. Excessive CRC errors for a continuous time period causes the ESH/ESH2 firmware to bypass this port.
|
Yes, if drive was bypassed.
|
|
Invalid Word Count
|
Number of times this port saw invalid FC-AL words transmitted.
|
Is zero under normal operation. Removal and addition of disks, and a reset of the adapter, might generate some word errors. Word errors on a port pinpoint the failure location. Excessive word errors for a continuous time period causes the ESH/ESH2 firmware to bypass this port.
|
Yes, if drive was bypassed.
|
|
Clock Delta
|
The clock delta between this port in respect to the ESH/ESH2 clock and seven other ports.
|
It is normal for the FC-AL sync clocks to drift with respect to each other. This is a signed drift value. A value exceeding 6,400 PPM causes the ESH/ESH2 firmware to bypass this port.
|
Yes, if drive was bypassed.
|
|
Insert Count
|
Number of times this port was inserted into the loop.
|
Depends on the number of insertions and removals of disks and LIPs that occur in the loop.
|
No
|
|
Stall Count
|
Number of times this port exceeded the open/close (OPN/CLS) maximum threshold.
|
Is zero under normal operation. Removal and addition of disks, and a reset of the adapter, might generate some stall errors. Excessive stall errors for a continuous time period causes the ESH/ESH2 firmware to bypass this port.
|
Yes, if drive was bypassed.
|
|
Utilization %
|
Relative use of this port versus other ports in the ESH/ESH2.
|
This value does not reflect the real-time use of what the ports are currently achieving and is only obtained when extended status is available from the ESH/ESH2. It indicates the relative use from the last time extended status was available.
|
No
|
Copyright © 1994-2005, Network Appliance, Inc. All rights
reserved.
Part No. 210-00765
File: leds3.htm
Last updated: Mon Apr 11 15:36:34 2005