You have been asked to design a high performing and highly redundant storage array with a minimum of 32 TB of usable space for files. 4 TB hard drives cost $200, 6 TB hard drives cost $250, 8 TB hard drives cost $300, and 10 TB hard drives cost $350. Explain which type of RAID you would choose and the quantity and types of drives you would use for your solution.
Number of 4 TB hard drive need = 32/4 = 8 and cost = 200*8 = 1600 $
Number of 6 TB hard drive need = max(32/6) = 6 and cost = 250*6 = 1500 $
Number of 8 TB hard drive need = 32/8 = 4 and cost = 300*4 = 1200 $
Number of 10 TB hard drive need = 32/10 = 4 and cost = 350*4 = 1400 $
Hence using 4 hard drive of 8 TB will minimize the cost
You have been asked to design a high performing and highly redundant storage array with a...
Design a network. You have been asked to design the new satellite's network. The the satellite office will have 32 users. There needs to be an Active Directory network that all users need to log into. Also, at the satellite office there will be three other servers; a video recorder server, a website that will need to be publicly accessible, and finally a VoIP server. Of the 32 users there will need to be a subnet for 3 of them...
You have been asked to review the design of the aluminum bracket shown on the following page. The bracket will be prototyped by milling and drilling. a. Examine the part model and recommend at least two design changes to improve the manufacturability of the part. Indicate your changes graphically on the figure (or a sketch made yourself), and justify your choices. You may always assume that there is plenty of room for the bolts which will be used to mount...
Please show all steps. DATA CENTER REDESIGN You are a data center manager and have been asked by your boss to redesign a telecommunications room in one of your smaller facilities. One element of this redesign you would like to optimize is the rack structure – your goal is to provide the greatest amount of equipment storage (by weight) within the cost constraints of the project. There are two types of storage racks you can choose from. Rack A costs...
You have been asked to design a similar pump from the
existing one. The existing pump works for water is of impeller
diameter equals 6 cm and its performance data is shown here when
working at 1725 rpm. The newly design pump is for a refrigerant
(R-134A) and it must produce 450 cm of head at 1600 rpm when
working at its best efficiency. One of your colleagues did
preliminary analysis and develop the performance curves in
dimensionless form for...
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As a control system engineer you have been asked to design a controller that would improve the error and the transient response for the unity feedback system below. The proposed solution must be cost-effective, so consider a passive network-based compensator. The transient response of the closed-loop transfer function to a ramp input has a 30% overshoot (%OS = 30) and a settling time Ts= 2.73 seconds. You need to decrease the peak time by a factor of 2,...
Question 1 (20 points) As a control system engineer you have been asked to design a controller that would improve the error and the transient response for the unity feedback system below. The proposed solution must be cost-effective, so consider a passive network-based compensator. The transient response of the closed-loop transfer function to a ramp input has a 30% overshoot (%OS = 30) and a settling time Ts= 2.73 seconds. You need to decrease the peak time by a factor...
power = 3 kW
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You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
no
please
Problem (2): Given: As an engineer, you have been asked to design a reinforced concrete floor system consists of a 5-in concrete slab supported by T-beams of 24-ft spans. The T-beams are spaced 4 ft and bw (width of the beam part 15". Total height is 25 inches. If you try to find the steel required for T-beam for moment due to Mp- 500 ft-kips and M-300 ft-kips, what would be the type of T-Beam (Regular or True...
You have been asked to design a circuit, shown below, that will
deliver a high-current, slightly
underdamped, sinusoidal current pulse to a resistive load when the
switch is closed at t = 0. You
are given the design requirements and parameters listed in the
table:
a) What values of L and C are required to meet the
specifications?
b) Calculate the time of the first current peak.
c) Calculate the maximum current delivered by the capacitor?
d) Calculate the value...
DESCRIPTION You have to design an e-commerce shopping cart. These require classes Item, Electronics, Food, Dress, Cart and Main. ITEM CLASS Your Item class should contain: Attributes (protected) String name - name of the Item double price - price of the item Methods (public) void setName(String n) - sets the name of Item void setPrice(double p) - sets the price of Item String getName() - retrieves name double getPrice() - retrieves price String formattedOutput() returns a string containing detail of...