Sun Storage 2530 Array
 
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Sun Storage 6140 Array
 

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

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.

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.

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.

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.

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.

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