What is the ECS Appliance hardware?
Table of Contents
Each appliance includes the following components:
The following figure shows the front and rear view of a fully populated appliance.
Customers connect to the appliance via 10 GbE ports and their own interconnect cables. When multiple appliances are installed in the same data center, the private switches can be connected by daisy-chain or by home-run connections to a customer-provided switch.Back to Top
ECS Appliance racks include three top-of-rack switches:
- Private switch — One 1GbE private switch to handle management traffic.
- Public switch — Two 10 GbE switches to handle data traffic.
The private switch is used for management traffic. It has 48 ports and dual power supply inputs. The switch is configured in the factory.
The ports are used as follows:Back to Top
The switch is equipped with 24 SFP+ ports, dual hot-swap power supplies, and redundant field replaceable fan modules.Back to Top
ECS Appliance nodes have the following features:
- 4 node server (2U) with 2 CPU per node.
- 2 system disks are present per node
- LED indicators for each node.
- Dual hot-swap chassis power supplies.
- 2 SAS interfaces per node.
- Rack mount 2U 4-node server systems.
- Supports up to sixteen 2.5” hot-swap SAS hard drives (2 are populated per node).
LED indicators are on the left and right side of the server front panels.Back to Top
The server chassis provides dual hot-swappable power supplies and four compute nodes. The chassis shares a common redundant power supply (CRPS) that enables HA power in each chassis shared across all nodes. The nodes are mounted on hot-swappable trays that fit into the four corresponding node slots accessible from the rear of the server.
- 10 GbE —The right 10 GbE data port of each node is connected to one of the 10GbE switch's primary data ports. The left 10 GbE data port of each node is connected to one of the 10GbE switch's secondary data ports.
- 1 GbE — Connected to one of the 1 GbE switches data port.
- RMM — Dedicated port for hardware monitoring (per node).
Nodes are assigned host names based on their order within the chassis and within the rack itself. The following diagram shows the back view of the chassis nodes and the host names assigned to the nodes for 4 and 8 node systems.Back to Top
ECS Appliance disk enclosures have the following features:
- Up to 60 3.5-inch disk drives in a single 4U drawer. (Serviced from the front.)
- 1 Link Control Card (LCC). (Serviced from the front.)
- 1 Inter Connect Module (ICM). (Serviced from the back.)
- 3 fans (or cooling modules) n+1 redundant.(Serviced from the front.)
- 2 power supplies; n+1 redundant. (Serviced from the back.)
The DAE is a drawer that slides in and out of the 40U dense rack. The disk drives, LCC, and cooling modules for the DAE are located inside the DAE.Back to Top
The disk drives are encased in cartridge-style enclosures. Each cartridge has a latch that allows you to snap-out a disk drive for removal and snap-in for installation. The DAE supports:
You can add or remove a disk drive while the DAE is powered up, but exercise special care when removing modules while they are in use. Drive modules are extremely sensitive electronic components.
The inside of each DAE has physically printed labels located on the left and the front sides of the DAE that describe the rows (or banks) and the columns (or slots) of where the disks are installed in the DAE. Looking at the DAE from the front and above, the following figure shows you the disk drive layout of the DAE.
The banks are labeled from A to E and the slots are labeled from 0 to 11. When describing the layout of disks within the DAE, the interface format for the DAE is called E_D. That is, E indicates the enclosure, and D the disk. For example, you could have an interface format of 1_B11. This format is interpreted as enclosure 1, in row (bank) B/slot number 11.
Enclosures are numbered from 1 through 8 starting at the bottom of the rack. Rear cable connections are color-coded.Back to Top
Each DAE includes a hot-swappable LCC whose main function is to be a SAS expander and provide enclosure services. The LCC independently monitors the environment status of the entire enclosure and communicates the status to the system. The LCC includes a fault LED and a power LED.Back to Top
Each DAE includes three fan control modules (cooling modules) located on the front of the DAE. The fan control module augments the cooling capacity of each DAE. It plugs directly into the DAE baseboard from the top of the DAE. Inside the fan control module, sensors measure the external ambient temperatures to ensure even cooling throughout the DAE.Back to Top
The ICM is the primary interconnect management element. It is a plug-in module that includes a USB connector, RJ-12 management adapter, Bus ID indicator, enclosure ID indicator, two input SAS connectors and two output SAS connectors with corresponding LEDs indicating the link and activity of each SAS connector for input and output to devices.
The ICM supports the following I/O ports on the rear:
- Four 6-Gb/s PCI Gen 2 SAS ports
- One management (RJ-12) connector to the SPS (field service diagnostics only)
- One USB connector
- 6-Gb/s SAS x8 ports
It supports four (two input and two output, one used) 6-Gb/s SAS x8 ports on the rear of the ICM. This port provides an interface for SAS and NL-SAS drives in the DAE.Back to Top
The power supply is hot-swappable. It has a built-in thumbscrew for ease of installation and removal. Each power supply includes a fan to provide cooling to the power supply. The power supply is an auto-ranging, power-factor-corrected, multi-output, offline converter with its own line cord. Each supply supports a fully configured DAE and shares load currents with the other supply. The DAE, the power supplies provide four independent power zones. Each of the hot-swappable power supplies has the capability to deliver 1300 W at 12 V in its load-sharing highly-available configuration. Control and status are implemented throughout the I2C interface.Back to Top
Racks are assigned names in the following way:Back to Top