Fibre Channel (SAN)

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Contributor
Posts: 22
Registered: ‎04-06-2010

Switch throwing alerts related to fan's speed and MQ-WRITE

I am getting alert/errors when I telnet into the switch. Can't open the switch's gui and the swReport is hanging. Had anyone encountered this before? I have attached the errors and also the supportshow (hanged at cfgshow).

Firmware : v3.2.1c

Model : Brocade SilkWorm 3800

Super Contributor
Posts: 425
Registered: ‎03-03-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

3800 SW is EOL, EOS, EOA already.

You should advise the customer to change i tto 8 Gbps products.

Anyway , pls check with cmnds: sensorshow, switchstatusshow:

u will get like this:

FAB1:user> sensorshow
sensor  1: type 1 (Temp #1) is OK, value is 42
sensor  2: type 1 (Temp #2) is OK, value is 37
sensor  3: type 1 (Temp #3) is OK, value is 35
sensor  4: type 1 (Temp #4) is absent, value is unknown
sensor  5: type 1 (Temp #5) is absent, value is unknown
sensor  6: type 2 (Fan #1) is OK, value is 9990
sensor  7: type 2 (Fan #2) is OK, value is 9780
sensor  8: type 2 (Fan #3) is OK, value is 9930
sensor  9: type 2 (Fan #4) is OK, value is 9990
sensor 10: type 2 (Fan #5) is absent, value is unknown
sensor 11: type 2 (Fan #6) is absent, value is unknown
sensor 12: type 3 (Power Supply #1) is OK, value is unknown
sensor 13: type 3 (Power Supply #2) is OK, value is unknown


FAB1:user> switchstatusshow
Switch Health Report                        Report time: 09/01/2010 09:05:04 PM
Switch Name:    HDFC_UAT1_FAB1
IP address:     10.226.4.154
SwitchState:    HEALTHY
Duration:       1690:23

Power supplies monitor  HEALTHY
Temperatures monitor    HEALTHY
Fans monitor            HEALTHY
Marginal ports monitor  HEALTHY
Faulty ports monitor    HEALTHY
Missing SFPs monitor    HEALTHY


All ports are healthy

check the errdump also.

Contributor
Posts: 22
Registered: ‎04-06-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

There are no alerts generated now. Are you able to see anything from the supportshow that I uploaded? Attached is the errdump.

sensorshow

sensor  1: type 1 (Temp #1) is OK, value is 36

sensor  2: type 1 (Temp #2) is OK, value is 31

sensor  3: type 1 (Temp #3) is OK, value is 33

sensor  4: type 1 (Temp #4) is absent, value is unknown

sensor  5: type 1 (Temp #5) is absent, value is unknown

sensor  6: type 2 (Fan #1) is OK, value is 9810

sensor  7: type 2 (Fan #2) is OK, value is 9510

sensor  8: type 2 (Fan #3) is OK, value is 9810

sensor  9: type 2 (Fan #4) is OK, value is 9690

sensor 10: type 2 (Fan #5) is absent, value is unknown

sensor 11: type 2 (Fan #6) is absent, value is unknown

sensor 12: type 3 (Power Supply #1) is OK, value is unknown

sensor 13: type 3 (Power Supply #2) is OK, value is unknown


switchstatusshow

Switch Health Report                        Report time: 09/01/2010 03:08:30 PM

Switch Name:    HouicSW039

IP address:     134.163.133.52

SwitchState:    HEALTHY

Duration:       1235:45

Power supplies monitor  HEALTHY

Temperatures monitor    HEALTHY

Fans monitor            HEALTHY

Marginal ports monitor  HEALTHY

Faulty ports monitor    HEALTHY

Missing SFPs monitor    HEALTHY

Fabric Watch is not licensed

Detailed port information is not included

Super Contributor
Posts: 425
Registered: ‎03-03-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

From system erro ref guide:

Message Queues (MQ) are used for inter-process communication. Message queues allow many messages, each of variable length, to be queued. Any process or Interrupt Service Routine (ISR) can write messages to a message queue. Any process can read messages from a message queue.

In error dump:

CRITICAL MQ-QWRITE, 1, mqWrite, queue = ns_q

Explanation:

An attempt to write a message to a specified message queue has failed. The name of the message queue,

the queue ID, the message ID, and the error number are provided in the error log message.

Recommended Action:

Run the

mqshowall command and record the output. Provide the mqshowall output as well as the error

message to Technical Support.

Severity- Critical

Again :

DEFECT000018463 --Medium ---Summary: Scalability: CRITICAL MQ-QWRITE, 1, mqWrite, queue =fru_q, queue ID = 0x10e84a90

Symptom: On large mixed fabrics, approximately 700 device ports, and a zoning database of approximately 92k the following message can
appear: CRITICAL MQ-QWRITE, 1, mqWrite, queue = fru_q, queue ID =0x10e84a90


19818---- Medium ----Description of Defect: When a ping storm is initiated on a switch, the FSPF queue is exceeded and the switch displays CRITICAL MQ-QWRITE errors.

Description of fix: Added receive frame rate throttling code to ethernet driver.he ethernet driver now does a 1 tick delay on every 10th received frame so that during high rates of received ethernet frames, tNettask will not completely monopolize the CPU.

If 3800 SW is there in a mixed Fabric,  MAX zone DB size will be the lowest Sw's i.e 3800s which is 92KB.

It is advisable to remove the 3800 SW from the mixed Fabric, if you have 4 Gbps /8 Gbps SWs in the fabrics.

You can have a look on SYS ERR REF guide, attached , in chapter 15

Pls mark the thread if u find it helpful

Contributor
Posts: 22
Registered: ‎04-06-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

The switch is now fine after a reboot.

Super Contributor
Posts: 425
Registered: ‎03-03-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

Thanks for the final message. 

Contributor
Posts: 22
Registered: ‎04-06-2010

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

We encounter another switch in the same fabric behaving the same. Could this be a bug in v3.2.1 and I see that this is the last firmware for that particular model. I can only think of replacing the switch. Anyone have any suggestions or opinion.

Super Contributor
Posts: 260
Registered: ‎04-09-2008

Re: Switch throwing alerts related to fan's speed and MQ-WRITE

Replace the switch for sure.

The other option is to downgrade the firmware to Fabric Operating System (FOS) 3.2.0a GA, but this might introduce other problems.

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