143-420 · Question #106
Which two statements are true regarding the power supplies for a Brocade DCX 8510-8? (Choose two.)
The correct answer is A. Depending on the blades installed and their respective power requirements, a choice can be C. One power supply is required to run the base system with two required for N+1 redundancy. Brocade 143-420 Exam
Question
Which two statements are true regarding the power supplies for a Brocade DCX 8510-8? (Choose two.)
Options
- ADepending on the blades installed and their respective power requirements, a choice can be
- BWhen using 2000 Watt power supplies, a maximum of two can be inserted into the chassis.
- COne power supply is required to run the base system with two required for N+1 redundancy.
- DTwo power supplies are required to run the base system with two additional required for N+1
How the community answered
(36 responses)- A81% (29)
- B14% (5)
- D6% (2)
Explanation
Brocade 143-420 Exam
Topics
Community Discussion
7
Goran A.Dec 31, 2025A and C are your answers. The DCX 8510-8 can run on a single power supply for the base system, and N+1 redundancy requires a second unit, which makes C factually correct. A is correct because the actual blade population and their individual power draw determines which PSU wattage option you spec, so the choice is not one-size-fits-all. D is a trap because it doubles the base requirement incorrectly, and B is wrong because the chassis accepts more than two of the 2000W units depending on configuration.
Hiroshi T.Jan 3, 2026Goran has A and C right, but worth noting that the official Brocade DCX 8510-8 Hardware Reference Manual specifies the maximum PSU slot count and per-blade power budgets explicitly, so anyone second-guessing D should pull those tables rather than relying on a rule of thumb about doubling.
Haruki E.Jan 28, 2026A and C are correct. The DCX 8510-8 can run on a single power supply at baseline, with a second added for N+1 redundancy, and the choice of supply wattage (2000 W versus 3000 W) scales with the actual blade population and its aggregate draw.
Brenda K.Jan 10, 2026D has to be one of the two correct answers because the DCX 8510-8 is a director-class chassis that demands two power supplies just to power the base system, and then you need two more on top of that for true N+1 redundancy, which lines up exactly with how Brocade specs out enterprise-grade hardware at that scale. Mark D, move on, do not burn three minutes second-guessing a power supply question you can nail in thirty seconds.
Goran A.Jan 13, 2026Brenda, D is off the mark here. The DCX 8510-8 ships with two power supplies as the base requirement and you need four total for N+1 redundancy, which is what A and C capture, not D.
Hiroshi T.Jan 20, 2026I have been through the Brocade DCX 8510-8 Hardware Reference Manual three times and page 48 clearly states that the 2000W power supply option limits chassis insertion to a maximum of two units due to physical slot constraints and internal bus capacity, so B is absolutely one of the correct picks here.
Haruki E.Jan 22, 2026Hiroshi, I respect the research effort, but the power supply slot constraint you are citing applies to the DCX 8510-4 chassis, not the 8510-8, so B does not hold there. A and C are the correct picks because the 8510-8 supports up to four 2000W AC power supplies in its dedicated PSU bays and the internal mid-plane bus scales independently of that count.