Hello thanks for choosing Dell. Please refer to this.   [URL]  page 10 Table 3. Rules for ME4012 and ME4024 storage systems   Cable requirements for expansion enclosures [URL]
Hi we have one ME4024 which already has one expansion enclosure ME424. Now we need to add 2 extra ME424 Expansion to have total 3 expansion enclosure. I have these questions: 1- shall I use reverse cabling method ? as the current cabling in normal one 2- or I could use normal cabling ? 3- when I add 2 more expansion enclosure, is there and  treat to my old date after turn on system again ? 4- what is power on sequence after adding 2 expansions ? which one shall I turn on first ? ME4024 on ME424's ?   thank you in advance to help me Ali
Adding 2 ME424 Expansion enclosure to a ME4024 which already has one ME424