Hi All, I would sincerely like to thank Alex J. Avriette, Scott Mickey and Cris Lovett for their insightful emails. SUMMARY: The E3500 has two internal Fiber Channel loops: loop 0 (zero) -also known as loop "L" (lower loop) and loop 1 (one) -also known as loop "U" (upper loop). Loop "L" services the lower row of four internal disk slots, and loop "U" services the upper row of four internal disk slots. A picture of the disk slots: http://sunsolve.sun.com/handbook_pub/Systems/E3500/E3500_frontopen_zoom.html Most E3500 machines come from the factory with only loop "L" available. -Only the lower row of four disk slots are functional. On the back side of the E3500, two GBICs and one fibre cable connecting them complete loop "L", making it available for use. To make the upper row of 4 internal disk slots available you will need two additional X6731A GBICs and a second fibre cable connecting them. Once the additional two GBICs and cable are in place, loop "U" becomes available and the four upper disk slots can be populated with disks. There are six GBIC sockets on the back side of a typical stock E3500, four on the left side and two on the right side. Pictures here: http://sunsolve.sun.com/handbook_pub/Systems/E3500/component.rear.html http://sunsolve.sun.com/handbook_pub/Systems/E3500/E3500_rear_zoom.html So, where to install the 2 new GBICs? Install one GBIC in the 3rd socket from the bottom on the left side and the other in the upper socket on the right side. Also see: http://sunsolve.sun.com/handbook_pub/Devices/Fibre_Channel/FIBRE_E3500_FC_AL_Intfc.html E3500 machines typically come from the factory with only two GBICs and one cable installed. The GBICs are in the lowest socket on the left and right sides to complete loop "L". For additional information, see: http://sunsolve.sun.com/data/805/805-2630/pdf/805-2630-11.pdf http://www.jdsu.com/site/images/products/pdf/Fibre_Channel_GBIC_031502a.pdf Sun's 2m, 5m, or 15m cables all should work OK (X973A, X9715A, and X978A). However, I would suggest purchasing two new Sun 2m X973A cables at the same time you get the additional GBICs to avoid potential problems with possibly worn/degraded optical cables which have an unknown history. NOTE: One thing that everyone mentioned is to follow the bend radius (in this case 1.0 inch minimum bend radius rule). As this is my first time with a fiber cable, I had to go digging on what does bend radius mean and what impact can it have on the cable. Here's a link for those who're interested. http://www.tpub.com/neets/tm/112-5.htm _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Sat Sep 27 11:20:44 2003
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