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Asset ID: 1-73-1000284.1
Update Date:2011-04-29
Keywords:

Solution Type  FAB (standard) Sure

Solution  1000284.1 :   Clarification of the cables used for establishing a serial connection to the STK6140 and STK25x0 arrays.  


Related Items
  • Sun Storage 2530 Array
  •  
  • Sun Storage 2540 Array
  •  
  • Sun Storage 6140 Array
  •  
Related Categories
  • GCS>Sun Microsystems>Sun FAB>Standard>Reactive
  •  

PreviouslyPublishedAs
200399


Product
Sun StorageTek 2530 Array
Sun StorageTek 6140 Array
Sun StorageTek 2540 Array


Impact

Attempting a serial connection to the controller results in not getting the prompt to access the Service Serial Interface.


Contributing Factors

Product:

  • Sun StorageTek 6140 Array
  • Sun StorageTek 2530 Array
  • Sun StorageTek 2540 Array

and these Affected Parts:

  • 530-3544-01 PS2 6-pin DIN to RJ-45 Cable (2M)
  • 530-3100-01 DB9F to RJ45F Connector (Straight through)
  • 371-1107-01 DB9F to RJ45F Connector (NULL Modem)

This issue is due to inconsistency in the wiring of the 530-3544-01. There are cables that are wired the opposite of each other but have the same part number.

Identification of Affected Parts:

Examine the RJ45 end opposite of the latch on the 530-3544-01 cable. With the lock tab down and the connector pointed away from you, the pin numbers are 1-8 going left to right.

Notice the location of the orange and brown colored wires. If pin 1 has an orange and white striped wire, then the cable requires the new adapter (371-1107-01). If pin 1 has a brown wire, you must use the old adapter (530-3100-01).

A picture comparing the differences can be found via the attached jpeg.


Symptoms

Using an improper cable combination will not allow a send-break sequence to reach the controller. After establishing a tip(1) session, sending breaks does nothing and the user will never see the prompt to access the Service Serial Interface.

While serial port access has other uses, accessing the Service Serial Interface during the intitial installation of these arrays is the first place this problem is likely to be encountered. Customers and Field personnel make use of the Service Serial Interface to custom configure the network interface of each controller.


Root Cause

The current STK6140 documentation does not mention the need for using a NULL Modem cable in addition to the supplied cables. Thus it may be assumed by the Field, support and/or customers that nothing more is needed.

New shipkits will come with an additional adapter (371-1107-01) that will allow a proper connection to be established.


Workaround

There are four possible workarounds:

1. Use DHCP to assign the IP addresses of the controllers. Details are covered in Appendix A of the Sun StorageTek 6140 Hardware Installation Guide (819-7497-10).

2. Use a virtual network to change the IP addresses of the controllers. The specific steps are detailed in Appedix B of the Sun StorageTek Common Array Manager Installation Guide (820-0213-10).

3. If your Management Host has an unused Network Interface:

A) Plumb up the interface using 192.168.128.100.

B) Use a network cross-over cable to connect directly to one of the controllers

C) Register the Array, but do NOT upgrade the Firmware at this time.

D) Change the IP address of the other controller by selecting the Array, Physical Devices then Controllers.

E) Repeat B through D for the other controller.

This workaround can also be done from a laptop with the latest version Common Aray Manager software installed.

4. Use a NULL Modem cable in addition to the supplied cables and compatible with your terminal type to make the serial connection.


Resolution

Use the identification method below to determine the cable/adapter combination needed to make a proper serial connection to the controller.

For a working configuration use:

  • Not properly wired 530-3544-01 plus 530-3100-01
  • Properly wired 530-3544-01 plus 371-1107-01

Configurations that will not work are:

  • Not properly wired 530-3544-01 plus 371-1107-01
  • Properly wired 530-3544-01 plus 530-3100-01

Note: If the terminal does not have a DB9 Male connector, it will be necessary to make further adaptations of the cable to account for the connector type and sex of that terminal.


Previously Published As
102884
Internal Contributor/submitter
Bob.Deguc@Sun.COM

Internal Eng Business Unit Group
NWS (Network Storage)

Internal Eng Responsible Engineer
Bob.Deguc@Sun.COM

Internal Services Knowledge Engineer
karen.edwards@sun.com

Internal Kasp FAB Legacy ID
102884

Internal Sun Alert & FAB Admin Info
Critical Category:
Significant Change Date: 2007-04-18
Avoidance: Service Procedure
Responsible Manager: Dave Treen
Original Admin Info: WF this was submitted on April 13. Creating today and will send for 2 day review Apr 16 - karen.

Internal SA-FAB Eng Submission
-------- Original Message --------
Subject: FAB submission
Date: Fri, 13 Apr 2007 12:13:25 -0700
From: Bob De Guc
Reply-To: Bob.Deguc@Sun.COM
To: FAB_Submit@sun.com



lemme know if you have any questions or corrections...

Bob De Guc


Synopsis:

Clarification of the cables used for establishing a serial connection to
the STK6140 and STK25x0 arrays.

Avoidance:

[X] Service Procedure

http://sunwebcollab.central.sun.com/gm/folder-1.11.811470

Implementation:

[X] Reactive (Upon Failure)

Product:

Sun StorageTek 6140 Array
Sun StorageTek 2530 Array
Sun StorageTek 2540 Array

Affected X-Options:

Affected Parts:

530-3544-01 PS2 6-pin DIN to RJ-45 Cable (2M)
530-3100-01 DB9F to RJ45F Connector (Straight through)
371-1107-01 DB9F to RJ45F Connector (NULL Modem)


Issue Description:

The number and types of cables and adapters included in the STK6140,
STK2530 and STK2540
shipkits is not clearly documented. This makes it confusing to use the
Service Serial
Interface to quickly update the IP addresses on the array controllers.

Impact

While serial port access has other uses, accessing the Service Serial
Interface during the intitial installation of these arrays is the first
place this problem is likely to be encountered. Customers and Field
personnel make use of the Service Serial Interface to custom configure
the network interface of each controller.

Contributing Factors

There have also been some inconsistancy in the wiring of the 530-3544-01
There are cables that are wired the opposite of each other but have the
same part #.

Symptoms

Using an improper cable combination will not allow a send-break sequence
to reach the controller. After establishing a tip session, sending
breaks does nothing and the user will never see the prompt to access the
Service Serial Interface.

Root Cause

The current STK6140 documentation does not mention the need for using a
NULL Modem cable in addition to the supplied cables. Thus it is assumed
by the Field and customers that nothing more is needed.

New shipkits will come with an additional adapter (371-1107-01) that
will allow a proper connection to be established.

Corrective Action:

Supported Workaround (if available)

There are four possible workarounds for this problem:

1. Use DHCP to assign the IP addresses of the controllers. Details are
covered in Appendix A of the Sun StorageTek 6140 Hardware Installation
Guide (819-7497-10).

2. Use a virtual network to change the IP addresses of the controllers.
The specific steps are detailed in Appedix B of the Sun StorageTek
Common Array Manager Installation Guide (820-0213-10).

3. If your Management Host has an unused Network Interface:

A) Plumb up the interface using 192.168.128.100.
B) Use a network cross-over cable to connect directly to one of the
controllers
C) Register the Array, but do NOT upgrade the Firmware at this time.
D) Change the IP address of the other controller by selecting the Array,
Physical Devices then Controllers.
E) Repeat B through D for the other controller.

This workaround can also be done from a laptop with the latest version
Common Aray Manager software installed.

4. Use a NULL Modem cable in addition to the supplied cables and
compatible with your terminal type to make the serial connection.



Final Resolution

Use the identification method below to determine the cable/adapter
combination needed to make a proper serial connection to the controller.

Mis-wired 530-3544-01 plus 530-3100-01 works.
Properly wired 530-3544-01 plus 371-1107-01 works.
Mis-wired 530-3544-01 plus 371-1107-01 doesn't work.
Properly wired 530-3544-01 plus 530-3100-01 doesn't work.

Note: If the terminal does not have a DB9 Male connector, it will be
necessary to make further adaptations of the cable to account for the
connector type and sex of that terminal.

Identification of Affected Parts (how to):

Examine the RJ45 end opposite of the latch on the 530-3544-01 cable.
With the connector pointed away from you, the pin numbers are 1-8
going left to right. Notice the location of the orange and brown
colored wires. If pin 1 has an orange and white striped wire, then
the cable requires the new adapter (371-1107-01). If pin 1 has
a brown wire, you must use the old adapter (530-3100-01).

A picture comparing the differences can be found on the PTS web site:

http://pts-storage.west/products/SE6130/CABLE.jpg

Hardware Remediation and Material Availability Details:
(For Hardware FABs only)

Comments:

References:

* BugID:


Contacts:

* Contributor: Bob.Deguc@Sun.COM
* Responsible Engineer: Bob.Deguc@Sun.COM
* Responsible Manager: Dave Treen
* Business Unit Group:


[X] NWS (Network Storage)
Product_uuid
79213559-6949-11db-a023-080020a9ed93|Sun StorageTek 2530 Array
8ac7dca5-a8bd-11da-85b4-080020a9ed93|Sun StorageTek 6140 Array
addb4e49-910b-11db-9e93-080020a9ed93|Sun StorageTek 2540 Array

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