Sun Storage 6540 Array
 
Sun Storage 6140 Array
 

GCS>Sun Microsystems>Sun FAB>Standard>Reactive
 

• Part No: 530-3569-01
• Part Description: 4GB Tyco Expansion Cable

4GB Tyco expansion cables have a latch which needs to be pushed inwards before the cable can be safely removed from either an expansion or controller tray. Failure to remove them properly could result in a damaged cable.

Visible damage to the cable may or may not be evident. A damaged cable could break one of the two redundant drive channels. The redundancy of the drive channels can be verified by examining the "Drive Channel" section of the "storageArrayProfile.txt" from SupportData. This could manifest itself by poor and/or irregular performance.

There are two types of expansion cables: 2GB (Molex) and 4GB (Tyco). Only the Tyco cable is affected. The Molex cable is extracted by depressing a tab before pulling it out, much the same as other ST6140 FRUs. By contrast the Tyco cable has a latch that cannot be depressed but only pushed towards the array. The Tyco cable is also ribbed for stress relief where the cable enters the connector.

The removal of this cable FRU is different from all the other FRUs in this array.  As such, it is reasonable to assume that Field Service people may attempt to remove the cable improperly.

To properly remove the cable: 

1. Grasp the cable on either side using the thumb and middle finger.
2. Using the index finger, push the latch towards the controller/IOM card.
3. While keeping the latch pushed forward, pull the cable out using the thumb and middle finger.

Note 1: Due to the close placement of the components in the rear of the ST6140, it may be necessary to push the latch with a small screwdriver instead of your index finger.

Note 2: Due to the inversion of FRUs between the A (left) and B (right) sides, the latch may be either on the top (B) or bottom (A).

The O.E.M. (Engenio) is modifying the CSM2 tray sheet metal to allow for easier access to the latch.

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